About
128
Publications
37,248
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,549
Citations
Introduction
Before joining at University of West Indies, Dinesh Pathak worked at the Department of General and Inorganic Chemistry, University of Pardubice, Czech republic Europe. Dinesh does research in Materials Engineering, Solid-state Chemistry and Nanotechnology. Their current project is 'Hybrid solar cells, Quantum dots ; synthesis and Characterization' , thin films and Nanofibers etc .
Current institution
Additional affiliations
September 2012 - present
Publications
Publications (128)
Advanced Materials and Technologies for Photovoltaics addresses the key questions relating to the development of materials and technologies used in photovoltaic energy conversion. The book describes the fundamental and theoretical aspects of photovoltaic energy conversion, and then investigates each of the main technologies developed in this field....
Your personalized Share Link: https://authors.elsevier.com/a/1l1BV4R4IzXcW
Three organic dyes, 3,5-bis((4-(dimethylamino)benzylidene)amino)benzoic acid (D1), 4-((4-(diphenylamino)benzylidene)amino)benzoic acid (D6) and 3,5-bis((4-(diphenylamino)benzylidene)amino)benzoic acid (D7) were synthesized by the interaction of aminobenzoic acid and phenyle...
This paper presents the preparation of ceramics with (Bi0.4Ba0.1)Na0.5TiO3 via a conventional solid-state reaction method and their sintering at low temperatures of 850, 900, and 950 °C for 3 h, respectively. Bi2O3 and Na2O3 were used to suppress the volatility of Bi and Na ions during the sintering of (Bi0.4Ba0.1)Na0.5TiO3 ceramics. X-ray diffract...
Nanostructures have attracted huge interest as a rapidly growing class of materials for numerous applications in science and technology. Several techniques have been used to characterize the size, shape, crystal structure, elemental composition, and a variety of other physical properties of nanostructures. Different kinds of nanostructures have bee...
Nanostructures have attracted huge interest as a rapidly growing class of materials for numerous applications in science and technology. Several techniques have been used to characterize the size, shape, crystal structure, elemental composition, and a variety of other physical properties of nanostructures. Different kinds of nanostructures have bee...
In this study, nano-dispersed polymer gel electrolytes containing polymethylmethacrylate (PMMA), lithium perchlorate (LiClO4), diethyl carbonate (DEC), dimethylacetamide (DMA), and nano-sized fumed silica (SiO2) have been synthesized and characterized. The electrolytes showed high ionic conductivity for electrolytes with higher dielectric constant...
The incorporation of two dimensional MXenes with perovskite solar cells have garnered much attention in recent years. MXenes of the form Ti3C2Tx have shown unique electrical capabilities due to its surface terminating functional group Tx. Additionally, the inclusion of this material to perovskite solar cells has resulted in enhanced efficiency and...
The incorporation of two dimensional MXenes with perovskite solar cells have garnered much attention in recent years. MXenes of the form Ti3C2Tx have shown unique electrical capabilities due to its surface terminating functional group Tx. Additionally, the inclusion of this material to perovskite solar cells has resulted in enhanced efficiency and...
The incorporation of two dimensional MXenes with perovskite solar cells have garnered much attention in recent years. MXenes of the form Ti3C2Tx have shown unique electrical capabilities due to its surface terminating functional group Tx. Additionally, the inclusion of this material to perovskite solar cells has resulted in enhanced efficiency and...
Cobalt ferrite (CoFe2O4) ceramics were effectively synthesized using the co-precipitation method, followed by an investigation into the impact of sintering temperature on various properties including structure, morphology, magnetism, and dielectric behavior. These obtained ceramics exhibited a spinel ferrite structure with cubic symmetry. The avera...
Piezoelectric energy harvesting has attracted wide attention to fulfil day-by-day increasing energy demand. Owing to its benefits, which include scalability, high power density, and simple architecture, piezoelectric ceramics have become the first choice of researchers over their counterparts such as electromagnetic and electrostatic energy harvest...
Differential Scanning Calorimetry (DSC) is one of the best ways to examine the thermal kinetics of non-equilibrium nature of synthesized non-crystalline materials. The exact thermal kinetics of glassy materials during the glass transition, involves crystallization and polymorphic transition. DSC, a characteristic technique of thermal phase transiti...
Nanotechnological materials have enormous potential for various applications. The physical and chemical properties of nanomaterials are varied and depending on the size, structure, shape, and synthesis techniques. Sonochemistry is one of the potential synthetic techniques for producing noble nanomaterials. When an aqueous solution is exposed to ult...
In the realm of biomedical applications, the inclusion of plant-derived components stands out as a critical
consideration due to their non-toxic nature and antioxidant properties. In our research, we opt for Colocasia
esculenta plant extract, utilizing microwave technology to create dually doped ZnO nanopowder with copper (Cu)
and cerium (Ce). Auth...
The utilization of biomolecules extracted from plants for synthesizing nanoparticles (NPs) has gained considerable attention due to its eco-friendly, cost-effective, and sustainable attributes. In this research, a straightforward and environmentally friendly method was used for manufacturing Cu-Zn-Co trimetallic-doped (TD) α-Fe2O3 NPs. This process...
![The solar spectrum used in the simulations [49]](publication/380697250/figure/fig4/AS:11431281245232221@1716085240957/The-solar-spectrum-used-in-the-simulations-49_Q320.jpg)
The problems with traditional solar cells are mainly their high cost and low conversion efficiency, which severely restricts the advancement of these cells in real-world uses. Therefore, in order to maximise the efficiency of GaAs/AlGaAs thin-film heterostructures, GaAs/AlGaAs solar cells were numerically simulated along with Mo(S,Se)2 and CH3NH3Pb...
This treatise showcases the design as well as modeling about a photodetector (PD) based on AgInSe 2 (AISe), a direct bandgap chalcopyrite with a bandgap of 1.19 eV. The PD exhibits outstanding optical and electronic characteristics, showcasing remarkable performance. The PD has been systematically investigated by varying the width, carrier density,...
In order to meet the rising demand for silver nanoparticles across a variety of industries, it is necessary to devise a technique of synthesis that is not only inexpensive but also economically viable and kind to the natural environment. We employed our previous study on the leaves of the Lantana camara plant to perform synthesis of AgNPs, which we...
The problems with traditional solar cells are mainly their high cost and low conversion efficiency, which severely restricts the advancement of these cells in real-world uses. Therefore, in order to maximise the efficiency of GaAs/AlGaAs thin-film heterostructures, GaAs/AlGaAs solar cells were numerically simulated along with Mo(S,Se)2 and CH3NH3Pb...
Materials science has played a very crucial role in developing new technologies so far that could probably address the challenges of economic and ecological sustainability soon. In the field of advanced materials, perovskite oxides stand out to provide a clean environment, ensure enough clean energy, and sanitized water, and provide resources for i...
"Microbial fuel cells, thin-film solar panels, efficient and cost-effective technologies"
Report compile the UWI St Augustine’s Physics Department efforts in research to unlock the future of Renewable Energy for the Caribbean and the world
Photovoltaic is one of the best low-cost alternative energy sources. In this context, organic semiconductors were explored as light harvesters due to their extraordinary properties, but initially, the scientific community focused on synthesizing the large band gap organic semiconductors, which were unsuitable for photovoltaic applications. Wide ban...
The unique properties of two-dimensional (2D) materials have piqued the interest of the technical community. Titanium carbide (MXene) is a member of a rapidly expanding family of 2D materials with exceptional physiochemical characteristics and a wide range of uses in the environmental feld. 2D MXene has long been a topic of interest in environmenta...
The ever-growing demand for safe and nutritious food has activated the scrutinization of innovative approaches to enhance food preservation and extended shelf life. Nanotechnology has progressed by making a significant contribution to the food industry at the nanoscale level and appeared as a promising avenue for these challenges. Various nanomater...
Developing an effective artificial photosynthesis system that imitates natural photosynthesis is a major contemporary
problem. Electrospun nanofiber (NF) photocatalysts have a lot of promise for solving worldwide environmental
and energy problems. Additionally, there are still many challenges to overcome in order to increase photocatalytic
efficien...
Hydrogen is a green fuel that produces electricity and water as a by-product when it is swilled in a fuel cell with oxygen. In addition, hydrogen can be produced from both renewable energy and non-renewable energy sources like wind, solar, biomass and natural gas, and nuclear power respectively. Its energy applications are very diverse and can be a...
There are many challenges in front of humanity that need to be taken care of before they threaten our existence. Recent technological advancements have tried to solve or reduce their environmental effects. The chapter will discuss one such advancement for dealing with biomedical-related issues which is nanotechnology. Currently, many pieces of rese...
Photovoltaic is among the most propitious renewable energy sources for meeting
global energy demands. Owing to their simple solution synthesis procedure, lightweight wearable, power conversion efficiency, flyable, ready to deploy for extremist lightweight space, and reduced cost of constituent materials, perovskite solar cells have gotten huge int...
Photovoltaic is among the most propitious renewable energy sources for meeting global energy demands. Owing to their simple solution synthesis procedure, lightweight, wearable, power conversion efficiency, flyable, ready to deploy for extremist lightweight space, and reduced cost of constituent materials, perovskite solar cells have gotten huge int...
Ion beam modification is a one-of-a-kind approach for engineering nanomaterials to change their chemical and physical properties. Ion beam engineering of metal oxide semiconductor nanoparticles has been performed to improve their optoelectronic properties considering their energy applications. Zinc Oxide (ZnO) is one of these developing wide band g...
In this communication, we report a typical structural, optical and electrical analysis of thin films of hole transport material (HTM) based on aromatic phenyl benzidine derivative (N,N′-Di-1-naphthyl-N,N′-diphenylbenzidine) deposited by thermal evaporation technique onto the glass substrate. The effect of substrate temperature on the physical and e...
In this work polycrystalline PrFe1-XNiXO3 (x = 0.0, 0.1, 0.2, 0.3) type orthoferrites were synthesized by solid state reaction (SSR) method. The synthesized materials were characterized by X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), Raman, Ultraviolet–Visible (UV–Vis), Photoluminance (PL), dielectric and magnetization techniques. Th...
Nanofibers are a type of nanomaterial with diameter ranging from ten to few hundred nanometers with high surface to volume ratio and porosity. They can build a network of high porosity material with excellent connectivity within the pores, making them a preferred option for numerous applications. This review explores nanofibers from the synthesis t...
Solar cell development has been largely done by investigating how changes in the structural design of new materials will affect the cell’s performance. Although this process has been used for decades, it can sometimes be slow and expensive. Therefore, a new approach to solar cell development must be taken via simulations and modeling to enhance the...
Solar cell development has been largely done by investigating how changes in the structural design of new materials will affect the cell’s performance. Although this process has been used for decades, it can sometimes be slow and expensive. Therefore, a new approach to solar cell development must be taken via simulations and modeling to enhance the...
Zinc oxide (ZnO) nanopowder samples were prepared by using co-precipitation method, with varying parametric conditions. Rietveld refinement technique is used to study the structural properties of synthesized samples. XRD and UV spectroscopy techniques have been used to characterize the samples which resemble ZnO nanostructures. Observed lattice par...
In this work, the influence of Al (0, 2, 4, and 6 wt.%) on the optical properties of ZnO has been briefly investigated and described. The undoped and doped samples were characterized using a UV-visible spectrophotometer and Photoluminescence (PL). The X-ray diffraction (XRD) data in our preceding study is also indexed, and materials are said to hav...
Because of the challenges brought by our continuous reliance on fossil fuels, there has been a rush in the creation of numerous types of solar cells in recent years. The functionality of organic solar cells with a bulk heterojunction structure has substantially increased in recent years. However, further advancements are required for large-scale en...
Polymer blends have got considerable attention for their potential optoelectronic and photonic applications due to several advantages such as easy processing, low cost, flexibility, and good mechanical properties. This work reports the structure and optical properties of solution cast binary blends of poly (methyl methacrylate) (PMMA) and poly (vin...
Nanotechnology is collaborating with all sciences including physical, chemical or biological sciences for the manufacturing of nanomaterials, which are acting as gift for humanity. Nanomaterials are made up of nanoparticles that are defined by their particle size ranging from 1 to 100 nm. In the present scenario, these nanomaterials behave as regul...
This research intends to expand a mathematical model for studying the non-Newtonian surge of blood through a hepatic artery in the presence of steno occlusive disease post-liver transplantation. Power law liquid demonstrates the non- Newtonian character of blood. The hemodynamic conduit of the fluid is altered by the occurrence of arterial stenosis...
In this paper, proton conducting polymer electrolytes comprising different polymers, salts, and acids have been reviewed. The ionic conductivity of plasticized polymer electrolyte has been found to increase with the addition of plasticizers, which was due to the dissociation of ion aggregates or undissociated salt/acid present in the electrolytes i...
Zinc oxide and metal-doped oxides are multifunctional nanomaterials used in the Nano
World due to their distinctive characteristics and unique physical and chemical properties
such as extraordinary chemical stability, anti-corrosion, low electrons conductivity, a broad range of radiation absorption, high photo stability, and tremendous heat resista...
Extensive utilization of pesticides for enhancing agricultural growth has rigorously affected our surrounding ecosystem. Contaminated water reserves have been an area of apprehension. Nanotechnology has been given huge consideration in recent decades due to the exceptional characteristics of nanomaterials (NMs). Carbon NMs (CNMs) have an improved r...
In recent decades, the use of photocatalysts in the evolution of hydrogen (H2) has received much attention. However, the use of the well-known titanium oxide and another photocatalyst as a base for noble metals is limited due to their major weakness in electron-hole pair separation. The use of cocatalysts can be a good way to overcome this problem...
In this study, TiO2 nanofibers were prepared with Polyvinylpyrrolidone (PVP) polymer using sol-gel method via electrospinning technique. Owing to the advantages of small fiber diameter, tunable porosity, low cost, large surface to volume ratio, structure control, light-weight, and less energy consumption, electrospun nanofibers are evolving as an a...
Titanium dioxide (TiO2) nanofibers were synthesized by electrospinning to optimize the photocatalytic action efficiency. The synthesis of the fibers was carried out at four different wt% concentrations: 8, 9, 10 & 11% of polymer polyvinylpyrrolidone (PVP). The TiO2 fibers were further calcined at 700oC to get powder form. The uncalcinated and calci...
Due to the increase in world energy consumption and limited availability of fossil fuels, renewable energy sources, especially the sun attract attention due to its permanency, presence everywhere, and clean source. The energy from the sun can be used by using different materials. Like nanotechnology, science plays a fundamental role in solar power...
Polymer electrolytes (PEs) comprising the polar polymer complexed with ionic salts are important because of their use in different electrochemical devices such as solid-state batteries, fuel cells, supercapacitors, electrochromic devices, smart windows, and sensors. PEs are generally preferred due to some of their special properties such as good el...
In this chapter, nanodispersed lithium ion-conducting non-aqueous polymer gel electrolytes, obtained by dispersing nano-fillers to the polymer gel electrolytes obtained by adding suitable polymer to the solutions of lithium salts in different single/binary solvent mixtures have been discussed.
This project aims to reduce the effort of the farmers in extend manure or bio
fertilizers and give the most convenient and cost-effective way of spreading manure
and farm fields. Cow dung is necessary for the fertilization of the farmland. so here
is a frantic process do all. organic manure is eco-friendly. Natural cultivating
appropriate and versa...
In this study, we have investigated new tailored organic semiconductors materials for the optoelectronic application, such as organic solar cells. The carbon-based organic semiconductor material has promising advantages in organic thin-film form. Moreover, due to its low cost, organic thin-films are suitable and cheaper than inorganic thin-film. Th...
The invention is to solid waste is a major problem for India. It is important to take immediate action on how to the intelligent way of reducing plastic waste as a strategy in solid waste management, especially from inorganic materials since it is essential to the welfare of society and the environment. In India there are tons of plastics disposal...
Nanotechnology is offering true elucidations and chances to guarantee supportable energy for forth coming demands. Owing to their unique structures, physical and chemical properties, and configuration, metal oxide nanomaterials are the most promising material in the field of nanotechnology. In addition, one-dimensional nanostructures such as nanoro...
In this work, the semi-arid region of northern India was selected to observe the contamination levels, scattering pattern, seasonal distribution, the ratio of low and high molecular density carcinogenic PAHs (Polycyclic Aromatic Hydrocarbons) in the roadside plants (Ficus benghalensis). Total 48 samples [DAV College Jalandhar (inside city) as well...
In this work, we have studied the structural and optical properties of ZnO thin films. Pure thin films of ZnO were prepared on glass substrate by sol gel dip coating method and annealed at a temperature of 150 ºC. Similarly, 1 gm PVA capped ZnO thin film was prepared and annealed at 250 ºC and the last sample of 2 gm PVA capped ZnO thin film was pr...
We synthesized a biodegradable, controlled release formulation via the impregnation of methyl methacrylic acid onto the natural polysaccharide, gum tragacanth, and a polyacrlyic‐based hydrogel with glutaraldehyde as crosslinker. The biodegradation behavior of the prepared interpenetrating polymer network (IPN) was investigated with soil burial and...
The addition of nanoclay in the polypropylene matrix has many applications in the field of automotive, packaging and aeronautical industry. Nanocomposites of polypropylene with nanoclay phr (part per hundred of resin) of 2.5, 5.0, 7.5 and 10 are prepared using melt mixing in twin-screw extruder and injection molding. The dispersion of nanoclay in t...
Un-doped zinc sulphide (ZnS) and noble metal-doped ZnS quantum dots were synthesized by chemical method. The synthesized nanomaterial was characterized by UV-Visible, Fourier Transformed Infra-red Spectrometer (FTIR), Fluorescence, High Resolution Transmission Electron Microscope (HRTEM) and X-ray Diffraction (XRD). Scanning electron microscope com...
Un-doped zinc sulphide (ZnS) and noble metal-doped ZnS quantum dots were synthesized by chemical method. The synthesized nanomaterial was characterized by UV-Visible, Fourier Transformed Infra-red Spectrometer (FTIR), Fluorescence, High Resolution Transmission Electron Microscope (HRTEM) and X-ray Diffraction (XRD). Scanning electron microscope com...
Copper oxide is a compound that has been considered due to many advantages such as the natural occurrence of great quantity of starting material copper (Cu); non-toxic nature and the good electrical and optical properties. It is p-type with band gap range 1.21 eV to 1.51 eV and has potential of absorption of solar spectrum. In this work sol gel che...
. The fabrication of low-cost devices for electronics and photonics applications such as flat-panel displays, photovoltaic cells, optical amplifiers, sensor arrays, flexible circuitry depends heavily on high throughput fabrication processes and a choice of materials with appropriate performance characteristics. The solution processing schemes with...
ZnO is widely used as a functional material because it has a wide and direct band gap, large excitons binding energy, and excellent chemical and thermal stability. ZnO is a semiconductor material which is widely used as transparent electrodes in solar cells, chemical and gas sensors, and light emitting diodes, due to its unique electrical and optic...
In this study, proton-conducting nanocomposite plasticized polymer electrolytes based on poly(methyl methacrylate) (PMMA) complexed with trifluoromethanesulfonic acid (HCF3SO3) plasticized with propylene carbonate (PC) and dispersed with nanosized fumed silica (SiO2) have been prepared through the solution-casting technique. The ionic conductivity...
Highly photoactive merocyanine 540 is revealed to form charge transfer complex with zinc sulphide and cadmium sulphide nanocrystals confirmed by FT-IR Spectroscopy, Fluorescence emission and UV-Visible spectrophotometer. The semiconducting nanocrystals were synthesized by co-precipitation method and characterized by Fluorescence emission spectrosco...
Copper oxide is a semiconductor that has been studied for several reasons such as the natural abundance of starting material copper (Cu); the easiness of production by Cu oxidation; their non-toxic nature and the reasonably good electrical and optical properties. Copper oxide is well-known as cuprite oxide. The cuprite is p-type semiconductors havi...
Cadmium sulphide (CdS) and Mn-doped CdS nanocrystals were synthesized by co-
precipitation method. The nanocrystals were characterized by Fluorescence, Fourier
Transformed Infra-red Spectrometer (FTIR), UV-Visible, X-ray diffraction (XRD), X-ray
photoelectron spectrometer (XPS), Field Emission Scanning Electron Microscope (FESEM), and
High Resol...
Nano-composite polymer gel electrolytes were synthesized by using polyethylene oxide (PEO), ammonium tetrafluoroborate (NH4BF4), fumed silica (SiO2), dimethylacetamide (DMA), ethylene carbonate (EC), and propylene carbonate (PC) and characterized by conductivity studies. The effect of donor number of solvent on ionic conductivity of polymer gel ele...
Zinc sulphide (ZnS) and transition metal-doped ZnS nanocrystals were synthesized by co-precipitation method. Further the synthesized nanocrystals were characterized by Field Emission Scanning Electron Microscope (FESEM), High Resolution Transmission Electron Microscope (HRTEM), Fluorescence, UV-Visible, X-ray diffraction (XRD) and Fourier Transform...
Silver indium diselenide quantum dots were successively synthesized by colloidal sol-gel method by chelating with organic ligand oleylamine (OLA). The particle size was studied by transmission electron microscopy (TEM) and the size was found about 10 nm. X-ray diffraction (XRD) was used to study crystalline structure of the nanocrystals. The grain...
Nanocomposite polymer electrolytes based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) have been prepared by using ammonium fluoride (NH4F) as salt, dimethylformamide as plasticizer and nanosize alumina (Al2O3) as filler. The ionic conductivity of polymer electrolytes has increased by four orders of magnitude (from 10⁻⁷ to 10⁻³ S/c...
Zinc sulphide (ZnS) and Cu-doped ZnS nanoparticles were synthesized by the wet chemical method. The nanoparticles were characterized by UV-Visible, Fluorescence, Fourier Transform Infra-red Spectrometry (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectrometry (XPS), field emission scanning electron microscopy (FESEM), and high resolution t...
Ionic conductivity of polymer electrolytes obtained by complexation of
trifluoromethanesulfonic acid (HCF3SO3) (triflic acid) with polyethylene oxide (PEO) has been found to
increase with the addition of dimethylacetamide (DMA) as plasticizer. The increase in conductivity has
been explained to be due to dissociation of ion aggregates with the ad...
We report on the photovoltaic performance of novel T-Shaped Indan-1,3-dione derivatives as donors in a solution processed bulk heterojunction solar cells. Small molecule bulk heterojunction solar cells of these molecules with [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) were fabricated and characterized. The preliminary characterization of t...
Copper oxide is a semiconductor that has been studied for several reasons such as the natural abundance of starting material copper (Cu); the easiness of production by Cu oxidation; their non-toxic nature and the reasonably good electrical and optical properties. Copper oxide is well-known as cuprite oxide. The cuprite is p-type semiconductors havi...
Here we report first time the direct observation of the nucleation and growth process of CdS nanowires by stirring of CdS nanoparticles. The growth process of CdS nanowires consist of three steps, the growth of CdS particles, nucleation of CdS nanorods and finally the growth of CdS nanowires. This method brings forward a new idea to synthesize nano...
Materials composed of single or a few pure/modified graphitic layers can easily be synthesized using chemical methods. In present work, nanocomposites of reduced graphene oxide (RGO) with zinc oxide (ZnO) has been prepared via in situ reduction of graphite oxide (GO). X-ray diffraction spectra (XRD) confirmed the coexistence of RGO and ZnO crystal...
Nano-composite polymer electrolytes containing poly(vinylidenefluoride-co-hexafluoropropylene
(PVdF-HFP), ammonium tetrafluoroborate (NH4BF4) and nano-size fumed silica (SiO2) have been
prepared and characterized by complex impedance spectroscopy. Ionic conductivity of polymer has been
found to increase with the addition of NH4BF4 and maximum condu...
The ensuing perspective comprises a versatile and forthright methodology for size controlled, lead telluride nanoparticles in the presence of highly hydrophobic cationic Gemini surfactants (12-2-12, 14-2-14 and 16-2-16) as capping/stabilizing agents. The optical and electrical properties were examined with adoration to the cumulative diameter of le...
Tuneable photonic crystal has been developed by infiltration of nematic liquid crystal and different organic liquids in the void of silica microspheres. Optical properties were investigated by ultraviolet – visible (UV-Vis) spectroscopy. It has been observed that the position of photonic band gap shifts from 336 nm to 326 nm with the increase of ap...
In this paper, proton and lithium conducting polymer gel electrolytes containing ortho-nitrobenzoic acid, lithium hexafluorophosphate, diethyl carbonate, polymethylmethacrylate have been prepared and characterized by impedance spectroscopy. The ionic conductivity, pH and viscosity of the electrolytes have been studied as a function of acid/salt and...
Polymer electrolytes based on polyvinyledene fluoride (PVdF) and ammonium fluoride (NH4F) have been prepared and characterized. Films of polyvinyledene fluoride and ammonium fluoride have been prepared by solution casting technique using tetrahydrofuran (THF) as a solvent. Maximum conductivity of 1.17 x 10-7 S/cm at room temperature has been obtain...
Polymer electrolytes based on ammonium fluoride (NH F) and poly (vinylidene fluoride-co-hexafluoropropylene) (PVdF4 HFP) have been prepared by solution casting technique using Tetrahydrofuran (THF) as a solvent and characterized by -7c omplex impedance spectroscopy. Maximum conductivity of 2.17x10 S/cm at room temperature has been obtained for poly...
Building on previous work, many studies have focussed on metal chalcogenide nanomaterials for diverse applications such as photothermal ablation of tumor cells and photothermal therapy, etc. Despite the large amount of related work, the available literature suggests that the size-dependent morphological impacts and similar characteristics have not...
For the first time Inverted ternary bulk hetrojunction hybrid photovoltaic device based on AgInSe2 – polymer blend as absorber and PEDOT:PSS as hole transport layer was fabricated and characterized. Blends of MDMOPVV.PCBM.AIS (MDMOPVV-Poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene], PCBM-(Phenyl-C61-butyric acid methyl ester), AIS-...
A solitary tread hydrothermal synthesis of lead telluride (PbTe) and copper telluride
(Cu(2-x)Te) nanoparticles (NP) at 150oC was carried out using cationic twin tail surfactant
(TTS) dimethylenebis (dodecyldimethylammonium bromide) (12-2-12) as capping agent.
UV-Vis and X-ray diffraction (XRD) have been employed to elaborate about structural and
p...
The need of energy is most discussed issue these days and among various renewable energy sources, solar energy is most reliable one. Collection of solar energy and then conversion to electricity requires semiconducting materials. After inorganic junctions, Organic materials have got a pretty attention because of many advantages of them. In this rev...
Questions
Questions (35)
Short Course on X-ray Diffraction and Electron Microscopy
Two-week short-term course on X-ray Diffraction and Electron Microscopy
(16th-30st August, 2023)
Organized by
Department of Physics, Faculty of Science and Technology,
The University of the West Indies St. Augustine, Trinidad & Tobago
What are main challenges to split water at low input potential (V) to produce hydrogen for future Hydrogen requirement as energy storages system.
I welcome national / International research collaboration at The University of the West Indies, St. Augustine, Trinidad and Tobago in the field of my research areas of material science as Nanostructured Compound semiconductors ( Chalcopyrites), Oxide Nanocomposites / Low cost sol gel synthesis of TCOs, Organic semiconductors/ Organic Inorganic hybrid semiconductor systems.
Also potential research students/PhD/M Phil and near related can reach at dinesh.pathak@sta.uwi.edu
https://https://lnkd.in/gAj3YbDB
Video- Materials for Advanced Technologies- Discussion by Prof Y K Mishra from University of Southern Denmark at University of West Indies @ Dinesh Pathak - World Science day Nov-2022 , Trinidad, West Indies
Upcoming Photovoltaic technology BHJ- Bulk hetrojunction Solar cell-
Bulk heterojunction combines the donor and acceptor parts in a bulk volume. Within a length scale of 10–20 nm, it displays a donor–acceptor phase separation. Each junction in such a nanoscale interpenetrating system is located near the absorption site at a range shorter than the exciton diffusion length. Solar cells with higher performance are the product of the bulk heterojunction concept, which significantly expanded the interfacial ar ea between the donor and acceptor phases. @Dinesh Pathak .
Why expert time as reviewer and working for publishers has no honorarium. Publication houses are running million dollar business with involving in free the reviewers and others . So academic expert time has no value ? Why should they work for free when journals are hugely earning either by subscription or publication fee
Which composition do you suggest for very low temperature melting to make glasses concerning safety also ?
Looking for participants in online internship for three months June-Aug with weekly meetings to discuss the issues like various research opportunities in the field like thin films structures, Nano materials, Nanotechnology, Solid state , Condensed matter , organic and inorganic Semiconductors , Energy harvest, materials engineering, hybrid electronics, funding opportunities worldwide etc. Interested sincere fellows with dedication to such topics can join, Dr Dinesh Pathak, dineshpathak80@gmail.com
I am looking for potential collaborators who can work with me on rietveld analysis of few structures with X ray diffraction data, we mainly work of nanomaterials , Photovoltaics , thin films etc but this analysis with be additional support for our work , can reach out at
Academician and Researchers should avoid the situation of "Academic mistrust" among together working colleagues. Academic mistrust comes when someone remove other from research academic work in which removed authors contributed as well. Remember this comes under intellectual property right, also life is like a circle and people can meet again with you at some other academic role in future.
- Dr Dinesh Pathak
"Published a review on Hydrogen production with our collaborators from Iran and China" Do you know Hydrogen is future fuel which will replace other non renewal energy sources and will help to stop carbon emission and control global environmental changes.
Hydrogen is an energy carrier that can be used in internal combustion engines or fuel cells producing virtually no greenhouse gas emissions when combusted with oxygen. The only significant emission is water vapour.
@ Dr Dinesh Pathak .
Online program by Dr Dinesh Pathak Watsapp +918894038612 may be helpful for Aspirant who wish to join Research, Master, Ph D and Postdoctoral abroad.
( Where to apply, How to apply, how to find a lab of my interest. Which are funding agencies Worldwide ? )
Vedio - On Energy Conservation Day December 14.
Why we should move toward renewal energy ? Which Materials are future ?
Dr Dinesh Pathak
Deutsche Welle DW German international news agency reported that there is strong shortage of Semiconductors worldwide which affacted so many industries. Shifting toward organic semiconductor can solve this issue along with very versatile Properties of Organic Semiconductors. Moving in this direction we synthesised and explored new tailored Organic materials and published in this French Journal.
Manuscript published on "filtration and protection from various viruses like Covid-19" by Dinesh Pathak et. al.
Dear Colleagues ,
We understand that last two years were challenging for mankind by threat offered by Novel Corona Virus, along with vaccine and immunization special protection by masks is necessary ,ordinary mask may not help as has much bigger pores inside them than the size of virus (roughly 110 nm), Nanotechnology and materials offer solution also for this problem by synthesized nanofibers like Materials by tuning porosity and sandwiching such nanofibers inside masks, our efforts of exploring PVP/ TiO2 nanofibers for such protection from Covid got published by MDPI open access Journal MDPI Technologies.
Electrospun PVP/TiO2 Nanofibers for filtration and possible protection from various viruses like Covid-19
Dinesh Pathak et .al. Link - https://www.mdpi.com/2227-7080/9/4/89
Vedio
I am looking from much time many people ask online about a post doc position , any post doc available ?? . I have one suggestion here this is not a perfect way actually , The way which can hit actually is .. write a concrete proposal after literature survey what extraordinary you can do for that lab ... Rare will deny your recruitment then , Good luck
Dr Dinesh Pathak
