Govindarajan Parthasarathy

• Doctor of Philosophy
• Professor (Assistant) at PSG College of Arts and Science

Abstract---Zinc Oxide and copper doped ZnO thin film prepared using dip coating of gas sensing methods are discussed inthis paper. For sol gel preparation Zinc Nitrate hexahydrate (Zn (NO3)2.6 H2o) and organic polymer sodium carboxy methyl cellulose (Na-CMC) as basic material and copper nitrate as a dopant and size of the prepared thin film varied...

This article describes a simple combination reaction between Zinc Nitrate and leaf extract of Ocimum basilicum, Anisochilus Carnosus, Curcuma neilgherrensis Wight and Aloe Vera plants to prepare ZnO nanoparticles. XRD analysis demonstrates that the prepared ZnO NPs exhibit hexagonal wurtzite structure and are crystalline in nature. The antibacteria...

In the present work, conventional chemical sol-gel dip coating method was employed for the preparation of CdS nanoparticles. XRD studies reveal that CdS crystallizes in single phase hexagonal structure. The particle size of CdS nanoparticles is obtained as 13nm.In recent decades innovative nanomaterials have been broadly studied, aiming at both inv...

Dye sensitized solar cells (DSSCs) are widely studied for the safe and reliable energy supply and cheaper than conventional solar photo-voltaic, can be a potential energy resource for the future. The components of DSSC which combine to form a photo conversion device are the conducting substrate, dye, photoanode, catalyst and electrolyte. Each compo...

Nano-sized ZnO particles were synthesized using the leaf extracts of Aloe vera and Ocimum basilicum. In modern days, Nanotechnology is a blazing field for the researchers. Nanoparticles have a size of 1-100 nm in one dimension was used considerably in relation to medical chemistry, atomic physics and all other fields. Nanoparticles are used enormou...

This review article mainly focused on different properties of Cadmium Sulfide (CdS) nano material. CdS is an important II-VI semiconductor compound having potential applications in thin film transistors, solar cells, light-emitting diodes, and photoconductive devices. While compared to bulk materials, CdS nano particles also comprise unique electri...

Biologically synthesized nanoparticles have been broadly using in the field of medicine. Research in nanotechnology highlights the possibility of green chemistry pathways to produce technologically important nanomaterials. In the present study, the objective was to study the synthesis and analyse the Zinc Oxide Nanoparticles (ZnO NPs) from Curcuma...

The quantum size effects are commonly expected and simply predict mostly the size will be reduced also causes more atoms are closer to the surface by using ZnO(CH3COO)2.As precursor solution and zinc oxide thin film were prepared by chemical dip coating method. When the transparent and conducting oxides thin films are the component of main devices...

This paper reports on antibacterial study of undoped and Cu doped ZnO thin film prepared by the Sol-gel dip coating method. The prepared undoped and Cu doped ZnO films are characterized by SEM, FTIR, UV-Vis and XRD analysis. Amorphous and nano cluster shapes are observed in SEM analysis. The presence of different chemical functional groups is confi...

The ZnO thin films are used in the field of pharmaceutical sciences and it has more number of applications which plays an important role on antibacterial activity. In modern era, the ZnO thin films prepared by biological and chemical methods using microorganisms, enzymes, and plant extracts has been suggested as Eco-friendly to environment. The pot...

The ZnO thin films are used in the field of pharmaceutical sciences and it has more number of applications which plays an important role on antibacterial activity. In modern era, the ZnO thin films pepared by biological and chemical methods using microorganisms, enzymes, and plant extracts has been suggested as ecofriendly to environment. The poten...

The Zinc Oxide nanoparticles are mostly used in the field of pharmaceutical sciences and it has more number of applications which plays an important role on antibacterial activity. In modern era, the nanoparticles synthesized by biological methods using micro organisms, enzymes, and plant extracts has been suggested as ecofriendly to environment. T...

In this paper, we discussed biosynthesized and characterization of zinc sulphide nanoparticles using tridaxprocumbens leaf extract by green synthesis method. This study focuses on the production of ZnS nanoparticles using tridaxprocumbens plant of methanol leaf extracts and analysis the antimicrobial activity. The formation of zinc sulphide nanopar...

Biologically synthesized nanoparticles have been broadly using in the field of medicine. Research in nanotechnology highlights the possibility of green chemistry pathways to produce technologically important nanomaterials. In the present study, the objective was to study the synthesis and analyse the Zinc Oxide Nanoparticles (ZnO NPs) from Curcuma...

In this paper, we discussed biosynthesized and characterization of zinc sulphide nanoparticles using tridaxprocumbens leaf extract by green synthesis method. This study focuses on the production of ZnS nanoparticles using tridaxprocumbens plant of methanol leaf extracts and analysis the antimicrobial activity. The formation of zinc sulphidenanopart...

Nano-sized ZnO particles of specific morphology were synthesized using the plant leaf extracts of Aloe vera. In modern science Nanotechnology is an ablaze field for the researchers. Nanoparticles having a size of 1-100 nm in one dimension are used significantly concerning medical chemistry, atomic physics and all other known fields. Nanoparticles a...

Nano-sized ZnO particles of specific morphology were synthesized using the plant leaf extracts of Aloe vera. In modern science Nanotechnology is an ablaze field for the researchers. Nanoparticles having a size of 1-100 nm in one dimension are used significantly concerning medical chemistry, atomic physics and all other known fields. Nanoparticles a...

Zinc oxide thin films were deposited on glass substrates using sol gel spin coating method. Zinc acetate dihydrate was used as a starting material. Isoproponol and monoethanolamine were used as the solvent and stabilizer respectively. The prepared solution was dropped on the cleaned glass substrates and the substrates were rotated at 2000 rpm for 2...

In modern science Nanotechnology is an ablaze field for the researchers. Nanoparticles are used immensely due to its small size, orientation, physical properties, which are reportedly shown to change the performance of any other material which is in contact with these tiny particles and having a size of 1-100 nm in one dimension, is used significan...

Wet Chemical Synthesis method was used to synthesis undoped and Ni doped ZnS. The as-prepared products were characterized using XRD, FE-SEM, UV-VIS and PL analysis. The crystal structures, morphologies and optical properties of as-prepared samples along with the particle size, micro strain and dislocation density have been investigated. The results...

In the present study, the objective was to study the synthesis and analyse the zinc oxide nanoparticles from Anisochilus carnosus leaf extract. The study revealed that the plant extract possessed significant phytochemicals. The nanoparticles were synthesized using the leaf extract and analysed using UV, FTIR, SEM and XRD. Different functional group...

Plants have been used in the synthesis of metallic nanoparticles because they are more ecofriendly. These plant extracts also allow a controlled synthesis. Organic chemical solvents are toxic and require extreme conditions during nanoparticle synthesis. Plant extracts function as stabilizing, capping or hydrolytic agents. The ZnO nanoparticles are...

In modern science Nanotechnology is an ablaze field for the researchers. Nanoparticles are used immensely due to its small size, orientation, physical properties, which are reportedly shown to change the performance of any other material which is in contact with these tiny particles and having a size of 1-100 nm in one dimension, is used significan...

Ni doped and undoped ZnS nanocrystalline powders were synthesized by a Wet Chemical Synthesis method. The synthesized products were characterized by X-ray diffraction, scanning electron microscope, field emission electron microscope and ultraviolet–visible spectrometer. The X-ray diffraction and field emission electron microscope studies show that...

Plants have been used in the synthesis of metallic nanoparticles because they are more ecofriendly. These plant extracts also allow a controlled synthesis. Organic chemical solvents are toxic and require extreme conditions during nanoparticle synthesis. Plant extracts function as stabilizing, capping or hydrolytic agents. The ZnO nanoparticles are...