Praveen Naik

Praveen Naik
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Praveen verified their affiliation via an institutional email.
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Praveen verified their affiliation via an institutional email.
Nitte Meenakshi Institute of Technology · Department of Chemistry

Doctor of Philosophy
Looking for collaborators for fabrication of organic and polymer material for Electronic Application.

About

43
Publications
11,479
Reads
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840
Citations
Introduction
Dr. Praveen Naik is an assistant professor in the Department of Chemistry at Nitte Meenakshi Institute of Technology, Bengaluru. He holds a Ph.D. degree in Materials Chemistry and Organic Chemistry from the National Institute of Technology, Karnataka. With a 4-year research experience as a Postdoctoral Fellow at the Indian Institute of Science, Bengaluru, Dr. Naik specializes in the development and optimization of organic and polymer materials.
Additional affiliations
June 2021 - July 2022
Indian Institute of Science Bangalore
Position
  • PostDoc Position
Description
  • Institute post-doctoral research associate
June 2018 - June 2021
Indian Institute of Science Bangalore
Position
  • PostDoc Position
Description
  • UGC-Dr-D.S. Kothari post doctoral fellow
December 2013 - February 2018
National Institute of Technology Karnataka
Position
  • PhD Student
Education
December 2013 - February 2018
National Institute of Technology Karnataka
Field of study
  • Organic Chemistry

Publications

Publications (43)
Article
Herein, we report design, synthesis and photovoltaic performance of four new metal-free heteroaromatic dyes (P1-4) with D-π-A architecture carrying electron donating carbazole core connected to four different electron withdrawing/anchoring groups, viz. cyanoacetic acid, rhodanine-3-acetic acid, barbituric acid and thiobarbituric acid and phenylene...
Article
Herein we report the design, synthesis and photovoltaic performance studies of three new D-π-A-π-A architectured organic chromophores (N1-3) derived from (Z)-3-(9-hexyl-9H-carbazol-3-yl)-2-(thiophen-2-yl) acrylonitrile scaffold. In the new design, the electron rich carbazole unit is connected to three different electron withdrawing/anchoring specie...
Article
Herein, we report photovoltaic performance studies of three carbazole based dyes (N1–3) derived from (Z)-3-(9-hexyl-9H-carbazol-3-yl)-2-(thiophen-2-yl)acrylonitrile scaffold as effective co-sensitizers in Ru (II) complex, i.e. NCSU-10 sensitized DSSCs. From the results it is evident that, the device fabricated using co-sensitizer N3 with 0.2 mM of...
Article
Herein, we report the molecular design, synthesis and characterization of three new D-D-π-A configured metal-free chromophores D1-3 for their application in DSSCs as sensitizers as well as co-sensitizers. The new entities comprise carbazole as donor scaffold, 4-methoxyphenyl group as auxiliary donor and three different units, viz. cyanoacetic acid,...
Article
Full-text available
The infectious diseases caused by antimicrobial pathogens are often difficult to treat and thwarted by resistance to drugs. Therefore, designing new drugs to treat antimicrobial infections is a challenge in drug discovery research. A series of 2-thioxoimidazolidinone derivatives were synthesized in high yield from N'-arylideneamino-2-thioxoimidazol...
Article
This study delves into the synthesis, in vitro assessment, and molecular docking analysis of bioactive urea and thiourea derivatives, which have gained attention in pharma chemistry due to their versatile chemical reactivity and potential therapeutic applications. One pot synthetic methodology was employed to create a diverse class of compounds. Su...
Article
Many businesses, including sectors of food, textile, pharmaceuticals, and cosmetics, employ tartrazine or other synthetic dyes. These dyes cause severe health effects if used or consumed frequently. Hence, it is important to be aware and take precautions before their use. Up to now, researchers have introduced many electrochemical methods for deter...
Article
This study presents the design and synthesis of two novel donor–acceptor (D–A) type heterocyclic carbazole-derived organic dyes, CzP-BA and CzP-TBA, incorporating 9-(p-tolyl)-9H-carbazole as the electron donor and barbituric acid or thiobarbituric acid as electron acceptors. These dyes were developed with a strategic molecular framework to support...
Article
Full-text available
The increasing global demand for energy and growing environmental concerns emphasize the crucial role of solar energy as a sustainable and nondepletable resource. Solar cells, particularly dye‐sensitized solar cells (DSSCs), have gained prominence due to their efficient conversion of solar power, ecofriendly manufacturing processes, and noteworthy...
Article
This study highlights the recent advancements in organic electronic materials and their potential for cost-effective optoelectronic devices. The investigation focuses on the molecular design, synthesis, and comprehensive analysis of two organic dyes, aiming to explore their suitability for optoelectronic applications. The dyes are strategically con...
Article
Full-text available
Ionic liquid has become a very fascinating modifier in the past few years. With the help of an ionic liquid-modified carbon paste electrode, electrochemistry has become a great way to find different drugs with a lower detection limit and high sensitivity and selectivity. The circulation of electrons of the ring in the cationic part of ionic liquid...
Article
Full-text available
Intramolecular charge transfer (ICT) state evolves via excited state structural change and solvent reorganization, where the charge distribution in the excited state is markedly different from that in the ground...
Article
Full-text available
We present a study on a new class of Schiff bases with pyrimidine linked hydrazinyl azole backbone. These compounds were synthesized using conventional and ultrasonication methods. Our design strategy incorporated three heteroaromatic azoles and various substituents on the pyrimidine scaffold to enhance antimicrobial properties. Antibacterial and a...
Article
A new class of bis(azolyl) pyridine-2,6-dicarboxamides based derivatives were designed and synthesized by employing ultrasonication methodology. In this work, we studied the role of different heteroaromatic azole units such as oxazole, thiazole and imidazole moieties along with different donating/withdrawing substituents on the pyridine scaffold an...
Article
Herein we report the molecular design, synthesis, and inclusive investigation of four novel di-anchored symmetric dyes (CP1-4) centered on electron deficient cyanopyridine scaffold as possible photosensitizers for DSSC application. These new chromogens (CP1-4) comprise a powerful electron-withdrawing cyanopyridine moiety linked with additional elec...
Article
Full-text available
In the current work, globally based on Koopmans’ approximation, local electron transport characteristics of dihydroxybenzenes have been examined using the density functional theory for understanding their antioxidant activity. Our experimental and theoretical studies show that hydroquinone has better antioxidant activities when compared to resorcin...
Article
Full-text available
A new class of bis(azolyl) pyridine‐2,6‐dicarboxamides based derivatives were designed and synthesized by employing ultrasonication methodology. In this work, we studied the role of different heteroaromatic azole units such as oxazole, thiazole and imidazole moieties along with different donating/withdrawing substituents on the pyridine scaffold an...
Article
Full-text available
The present work describes the effect of structural modification of carbazole‐based photosensitizers carrying carboxylic acid as a common anchoring functionality, on the photovoltaic parameters of newly fabricated DSSCs. In this study, we have selected our previously reported three carbazole‐based derivatives, viz. S1‐3 having different structural...
Article
Four new Schiff‐base type conjugative polymers (CPs), that is, Py1‐4 carrying a strong electron‐withdrawing cyanopyridine scaffold coupled with different electron‐donating aromatic/heteroaromatic moieties were synthesized from their respective co‐monomers by simple poly‐condensation route. They were subjected to structural, thermal, photophysical,...
Article
Herein, we report the design and synthesis of four new thiophene-bridged D-π-A configured organic dyes T 1-4 comprising different donors, π-spacers and anchoring units, as potential sensitizers, and co-sensitizers for DSSCs. The current work also highlights their structural, photophysical, thermal, electrochemical, theoretical, and photoelectrochem...
Article
Herein, we describe the design, synthesis, and structural characterization of three new push‐pull type conjugative polymers, that is, VPPy1‐3 comprising strong electron‐withdrawing N‐heterocyclic nicotinonitrile scaffold coupled with electron‐donating phenylene units through vinylene bridges, as promising candidates for optoelectronic applications....
Article
Four new donor–acceptor type cyanopyridine-based conjugative polymers, i.e. TDPy1–4, carrying different electron-donating aromatic/heteroaromatic moieties in the backbone were synthesized from their respective co-monomers by using the Suzuki cross-coupling polycondensation protocol. These polymers were designed to possess good control of color emis...
Article
An organic photosensitizer (DP-1) with D-A-π-A architecture was systematically analyzed along with our previously reported dye N1. In the design, the dyes carry carbazole as donor, thiophene acetonitrile as π-spacer connected to varied acceptor/anchoring unit i.e., cyanoacrylic acid (N1) and 4-aminobenzoic acid (DP-1). Generally, cyanoacrylic acid...
Article
Three new D-A (Donor-Acceptor) configured conjugated polymers, i.e. PPy1-3, centered on strong electron accepting cyanopyridine scaffold carrying varied auxiliary donors, viz. phenylene (PPy1), biphenyl (PPy2), and fluorene (PPy3) were designed and synthesized as blue emitters for PLEDs. The new polymers were subjected to spectral, thermal, photoph...
Article
In this work, we report the design of three new cyanopyridine scaffold based polymers, viz. TPy1-3 as potential blue light emitters for PLED applications. The new polymer design comprise, a cyanopyridine core as an electron accepting entity, thiophene as an electron donating unit with different auxiliary donors, viz. phenylene (TPy1), biphenyl (TPy...
Article
In this work, we report comprehensive photovoltaic investigation of four structurally simple D-A configured organic dyes, A1-4 as active co-sensitizers in DSSCs sensitized with well-known Ru (II) based N3 dye. These effective co-sensitizers (A1-4) comprise N,N-dimethylaniline ring as donor scaffold linked with electron withdrawing functionalities,...
Article
In this work, we report a comprehensive photovoltaic investigation of a structurally simple Donor‐Acceptor (D−A) configured organic dye, N,N‐PABA as an active co‐sensitizer in DSSCs sensitized with well‐known Ru (II) based N3 dye. This effective co‐sensitizer (N,N‐PABA) comprises N,N‐dimethylaniline system as a donor scaffold linked with 4‐aminoben...
Conference Paper
Herein, we report design and synthesis of a new metal-free organic dye N1 derived from (Z)-3-(9-hexyl-9H-carbazol-3-yl)-2-(thiophen-2-yl) acrylonitrile scaffold. In this design, the electron rich carbazole unit is connected to rhodanine-3-acetic acid via cyano vinyl thiophene as π-spacer. Its molecular structure was confirmed by FTIR, NMR, Mass spe...
Article
Herein, we report a comparative study of four interesting metal-free carbazole based organic dyes with different structural configurations, carrying electron deficient barbituric acid (C1-4), as effective co-sensitizers in DSSCs sensitized with NCSU-10 dye. The new entities comprise different structural architectures, viz. D-A (C1), D-π-A (C2), D-D...
Article
Herein, we report photovoltaic performance studies of four D-π-A configured carbazole based co-sensitizers, P1-4 in DSSCs sensitized with Ru-II complexes i.e. NCSU-10/N3. The organic co-sensitizers (P1-4) comprise carbazole as a donor scaffold, phenylene ring as a π-spacer and electron withdrawing functionals, viz. cyanoacetic acid (P1), rhodanine-...
Article
Full-text available
Correction for ‘New di-anchoring A–π-D–π-A configured organic chromophores for DSSC application: sensitization and co-sensitization studies’ by Praveen Naik et al. , Photochem. Photobiol. Sci. , 2018, DOI: 10.1039/c7pp00351j.
Article
Full-text available
Herein, we report the design and synthesis of three new D–A type metal-free carbazole based dyes (S1–3) as effective co-sensitizers for dye-sensitized solar cell (DSSC) sensitized with Ru(II) complex (NCSU-10). In this new design, the electron rich carbazole unit was attached to three different electron withdrawing/anchoring species, viz. 4-amino b...
Article
Herein, we report the design and synthesis of three new un-symmetrical metal-free carbazole based organic dyes, E1-3 with A-π-D-π-A architecture, as effective di-anchoring sensitizers in DSSCs. The new entities comprise carbazole as donor scaffold connected to three different units, viz. cyanoacetic acid, 2, 4 thiazolidinedione and barbituric acid...
Conference Paper
In this present work we report, design, synthesis and performance studies of a new metal-free organic dye (N, N’-PABA) based on N,N-dimethyl-4-vinyl aniline carrying 4-amino benzoic acid as acceptor, as sensitizers for sensitizing photoanode (TiO2). In the sensitizers, N,N-dimethylaniline ring acts as anelectron donorwhile para amino benzoic acid f...
Article
In this work, we report synthesis and device fabrication studies of four metal-free D–A-type dyes (A1–A4) based on structurally simple N,N-dimethyl-4-vinyl aniline carrying four different acceptor/anchoring groups, as sensitizers for sensitizing photoanode (TiO2). In the sensitizers, N,N-dimethylaniline ring acts as an electron donor, while barbitu...
Article
In this paper, we report the design and synthesis of a new bi-anchoring indole based co-sensitizer DBA-8 with A-π-D-A (acceptor-π bridge-donor-acceptor) architecture, carrying indole moiety as a donor and barbituric acid as acceptor/anchoring groups. Its photo-physical and electrochemical properties along with molecular geometries, calculated from...

Questions

Question (1)
Question
The cyclic voltammetry (CV) measurements are performed by using the three electrode system, consisting of dye casted on glassy carbon electrode as the working electrode, Pt electrode as a counter and Ag/AgCl as a reference electrode. All three electrodes were immersed in the acetonitrile solution consisting an electrolyte [0.1M (n-Bu) N (BF4) in acetonitrile] and data were recorded at a scan rate of 100 mV/s.
Please answer what are the key differences and merits of two and three electrode system?  

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