Shankar Shanmugam

• Ph.D
• Professor (Assistant) at Erode Arts and Science College

Undoped mixed phase (Anatase and Rutile) TiO was synthesized by a simple 2 sol gel technique using titanium (IV) iso-propoxide as a Ti-precursor acetyl acetone and ethanol used as stabilizer and solvent. The TiO products were characterized by 2 XRD, TEM, FESEM, PL and FTIR. The TiO were spherical in shape with average size 2 of nm at of 450°C for 1...

In the present work, TiO2 nanoparticles doped with Zn and Cu were synthesized by the sol-gel method and annealed at 450°C for 1hr. The XRD pattern showed the prepared material is anatase and rutile phase of TiO2 nanoparticles. The crystallite size was varied from 17 to 22 nm as the Zn and Cu doped TiO2 nanoparticles. The FESEM and HR-TEM microg...

Abstract TiO2 is one of the common materials used for solar cells, diodes, different types of gas sensors, optoelectronic devices, etc., TiO2 is widely used in photovoltaic devices due to interesting optical and electrical properties. In this work, nanocrystalline TiO2 thin films have been prepared by sol gel dip coating method. X-ray diffraction...

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...

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...

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...

1) Abstract: In this investigation a film were deposited on the glass substrates by sol-gel dip coating methods, by using Zinc Nitrate hexahydrate (Zn (No3)2.6H2o) and organic polymer sodium carboxy methyl cellulose (Na-CMC) as base material. The film structure was analyzed by X-Ray diffractometry, and the surface morphology, and scanning electron...

1) Abstract: In this investigation a film were deposited on the glass substrates by sol-gel dip coating methods, by using Zinc Nitrate hexahydrate (Zn (No3)2.6H2o) and organic polymer sodium carboxy methyl cellulose (Na-CMC) as base material. The film structure was analyzed by X- Ray diffractometry, and the surface morphology, and scanning electron...

World’s energy demand is growing fast because of population explosion and technological advancements. It is therefore important to go for reliable, cost effective and everlasting renewable energy source for energy demand arising in future. Solar energy, among other renewable sources of energy, is a promising and freely available energy source for m...

The majority of the communities around the world rely heavily on oil, natural gas and coal for their energy needs. These fuels draw on lots of resources that will finally reduce, which in turn makes them too costly or too environmentally damaging to recover. Among all of the renewable energy technologies, including hydro, solar, wind, geothermal he...

Ruthenium pyridine-derivative complexes are used in dye-sensitized solar cellTiO 2 [DSSC] as a light to current conversion sensitizer. In order to improve the efficiency of the TiO 2 DSSC the noble metal ruthenium and some compounds present in the electrolyte (consists of 0.6M of1-butyl-3-methylimidazolium iodide(BMII), 0.03M iodine, 0.06 M Lithium...

The spin coating method was used for the preparation of ZnS, Mn doped ZnS (MZS) and Cobalt doped ZnS (CZS) thin films and their structural and optical properties were studied. The ZnS thin films were grown on well cleaned glass substrates by spin coating method from aqueous solution of Zinc Sulphide and Thiourea with two different dopants Mn and Co...

The well aligned ZnO nanorods were grown on glass substrate by using hydrothermal method. The seed layer was formed by using zinc acetate, ethanol and deionised water using dip coating technique. The ZnO nanorods were grown over the seed layered ZnO thin film using Zinc nitrate, Hexamethylenetetramine and deionised water. The prepared ZnO nanorods...

TiO 2 thin films were prepared on glass substrates by sol-gel spin coating method. Tiatanium tetra iso propoxide, ethanol and diethanolamine were used to prepare the coating solution. The prepared films were annealed at different temperatures of 350, 450 and 550 ° C. The structural properties were investigated by using X-ray diffraction technique a...

Thin films form a fair share in the ever growing solar cell research and also in the market. One of the most versatile materials grown as thin films today are from derivatives of pure and doped Zinc Oxide. A combination of dip coating and hydrothermal technique is a powerful tool in order to achieve good quality ZnO thin films. The initial run is m...

The Co doped ZnO thin films were deposited on glass substrates by dip coating method. Characterization techniques of XRD, SEM, UV-visible spectra measurements and VSM were performed to investigate the structural, optical and magnetic properties. ZnO thin films were prepared with three different growth time of 3, 4 and 5 hours at 90°C. Cobalt (Co) w...

A comparative study was carried out of Zns thin films deposited from sol-gel containing Zinc Nitrate, Thiourea and Isoproponal. Zns films prepared by Dip coating and spin coating method. Zns is an environmentally friendly material with wide band gap(Eg = 3.7 eV) compared to Cds(2.4eV), which is conventionally used as buffer layer in chalcopyrite ba...

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...

Metal Sulfide nanoparticles have attracted considerable interest because of their unique semiconducting and electronic properties. ZnS thin films have been deposited on glass substrates by spin coating method with Zinc Nitrate as starting material. The samples were synthesized by mixing Zinc Nitrate and Thiourea in Isoproponal. The crystal structur...

The present work describes the preparation and characterization of ZnO thin film and Manganese doped ZnO thin films. ZnO seed layers were prepared by Chemical Bath Deposition method (CBD) using zinc acetate, ethanol and de-ionized water as the precursors using automatic dip coating methods. In Mn doped ZnO, as the concentration of manganese increas...

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...

The chemical bath deposition method was used for the preparation of Mn doped ZnS thin films and their structural and optical properties were studied. The ZnS thin films were grown on well cleaned glass substrates by dip and spin coating methods from aqueous solution of Zinc Sulphide and Thiourea with a dopant Mn. The properties of Mn doped ZnS thin...

The Dip coating method was used for the preparation of ZnO nano rods and their structural, morphological, optical and photoluminescence properties were taken for study. ZnO seed layer thin films were prepared by dip coating method on well cleaned glass substrates. ZnO seed-coated glass substrates were immersed in aqueous solution of zinc nitrate an...

Research for alternate source of energy explores lot of technology in the field of material science .Harvesting UV light is immediate alternate source of energy.Composites of organic and inorganic material inferences reveals lot of inherent structural properties. Solutions TTIP:CH3 COOH:C2 H5 OH (1.5:0.1:10) prepared by sol-gel method. By changing...

ZnO nanorods were prepared using hydrothermal method and their Structural and Optical properties were studied. ZnO seed layer thin films were prepared by dip coating technique on to well cleaned glass substrate using Zinc acetate as starting material. ZnO nanorods were grown by hydrothermal method by immersing ZnO seed-coated glass substrates in aq...

Al doped ZnO thin film can be employed as the transparent conducting oxide (TCO) in solar cell application , due to its advantage of low cost, high productivity, and excellent electrical conductivity. Multilayer Aluminum doped Zinc oxide(AZO) thin films have been prepared on glass sub strates by sol gel spin coating method. Zinc acetate solutions o...

The Chemical Bath Deposition method was used for the preparation of ZnO nano rods and their structural properties were taken for study. ZnO seed layer thin films were prepared by dip coating method on well cleaned glass substrates. ZnO seed-coated glass substrates were immersed in aqueous solution of zinc nitrate and hexamethylenetetramine (HMT) at...

TiO2 thin films prepared and deposited on glass substrate by sol-gel spin coating method. The specimens were dried at 250 for 30minutes. The films obtained were annealed at 450°c and 550° c and then cooled, inheriting the high adherence to the substrates transparency, Chemical and mechanical stability. The surface morphology,film composition, struc...

Zinc Oxide (ZnO) nano rods are grown on glass substrates with different pH (6.5, 7.5, & 9) seed layer. Zinc Oxide seed layer thin films were prepared by dip coating. Zinc nitrate hexahydrate was used as source of zinc ion, while hexamethylenetetramine solution served as the complexing agent. Synthesis of hexagonal shape zinc oxide nanorods were ach...

The chemical bath deposition method was used for the preparation of ZnS thin films and their optical and structural properties were studied. The ZnS thin films were grown on well cleaned glass substrates by hydro thermal method from aqueous solution of Zinc Sulphide and Thiourea at different growth temperatures. The properties of ZnS thin films and...

The Chemical bath deposition method was used for the preparation of ZnO nanorods and their optical and structural properties were studied. ZnO seed layer thin films were prepared by chemical bath deposition technique on to well cleaned glass substrates. ZnO seed-coated glass substrates were immersed in aqueous solution of zinc nitrate and hexamethy...

The Chemical bath deposition method was used for the preparation of ZnO nanorods and their optical and structural properties were studied. ZnO seed layer thin films were prepared by chemical bath deposition technique on to well cleaned glass substrates. ZnO seed-coated glass substrates were immersed in aqueous solution of zinc nitrate and hexamethy...

Fabrication of ZnO nanorod based natural dye-sensitized solar cell is reported. Seed layers were deposited on glass / ITO substrates using dip coating method with zinc acetate dihydrate as starting material. ZnO nanorods were fabricated on induced seeds by hydrothermal method using hexamethylenetetramine as a precipitant and zinc nitrate as source...

The paper reports on a novel growth mechanism of ZnO nanorods. The seed layers were deposited using sol gel dip coating method with zinc acetate dehydrate as starting material. ZnO nanorods were grown in ZnO seed coated glass / ITO substrates with zinc nitrate and hexamethylenetetramine by hydrothermal method, in which growth layer solution were pr...

Undoped (ZnO) zinc oxide nanorods and ZnO nanorods doped with aluminium and lithium has been prepared and the photo catalytic degradation of (MB) methelene blue dye using UV light irradiation has been studied. ZnO nanorods were fabricated through wet-chemistry route using a hydrothermal method at relatively low temperature. The structural and optic...

Fabrication of ZnO nanorod based natural dye-sensitized solar cell is reported. Seed layers were deposited on glass / ITO substrates using dip coating method with zinc acetate dihydrate as starting material. ZnO nanorods were fabricated on induced seeds by hydrothermal method using hexamethylenetetramine as a precipitant and zinc nitrate as source...

Titanium dioxide(TiO 2)thin films were synthesized via sol-gel spin coating method using titanium tetra isopropoxide (TTIP) as starting material. TTIP is dissolved in ethanol stabilized by glacial acetic acid. TiO 2 thin films were prepared for different proportions of acetic acid. The prepared samples were dried at 250°C for 5minutes then annealed...

The Dip coating method was used for the preparation of ZnO nano rods and their structural, morphological, optical and photoluminescence properties were taken for study. ZnO seed layer thin films were prepared by dip coating method on well cleaned glass substrates. ZnO seed-coated glass substrates were immersed in aqueous solution of zinc nitrate an...

ZnS thin films were prepared using chemical bath deposition method and their optical and structural properties were studied. The ZnS thin films were grown on well cleaned glass substrates by hydro thermal method from aqueous solution of Zinc Sulphate and Thiourea at different growth temperatures. The properties of ZnS thin films and their growth me...