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RISS 인기검색어
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- 저자 : Prashant K. Baviskar (검색결과 2 건)
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CdS surface encapsulated ZnO nanorods: Synthesis to solar cell application
Nikam, Pratibha R.,Baviskar, Prashant K.,Sali, Jaydeep V.,Gurav, Kishor V.,Kim, Jin H.,Sankapal, Babasaheb R. Elsevier 2016 Journal of Alloys and Compounds Vol.689 No.-
<P><B>Abstract</B></P> <P>Surface coating of CdS nanoparticles over the ZnO nanorods have been performed by using simple successive ionic layer adsorption and reaction at room temperature. Initially, the seed/compact ZnO layer have been deposited via SILAR (successive ionic layer adsorption and reaction) on to fluorine doped tin oxide coated glass (FTO) substrate followed by synthesis of ZnO nanorods by chemical bath deposition method. The synthesized nano heterostructure was characterized by X-ray diffraction (XRD), UV–Vis spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission-scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDX) and high resolution-transmission electron microscopy (HR-TEM) techniques. The photovoltaic performance of the cell was recorded with a conversion efficiency of 0.123% under 100 mW/cm<SUP>2</SUP> simulated sunlight at AM 1.5G conditions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Synthesis of ZnO nanorods using simple solution chemistry. </LI> <LI> Surface encapsulation of ZnO nanorods with CdS nanoparticles using SILAR method. </LI> <LI> CdS sensitized ZnO nano heterojunction solar cell show 0.123% efficiency. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>The development of a heterostructure using one dimensional (1-D) confined nanomaterials of inorganic metal oxides and chalcogenides semiconductor. The heterostructure was constructed by using ZnO nanorods encapsulated with CdS nanoparticles without use of capping agent with precise control over the morphology and microstructure towards nano heterostructure solar cell application. The energy conversion efficiency (η) of 0.123% was obtained under standard illumination of simulated sun light.</P> <P>[DISPLAY OMISSION]</P>
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M.B. Rajendra Prasad,Parvin S. Tamboli,Ravi V. Ingle,Kiran D. Diwate,Prashant K. Baviskar,B.R. Sankpal,K.C. Mohite,Sandesh R. Jadkar,Habib M. Pathan 한국물리학회 2017 Current Applied Physics Vol.17 No.12
Geometrical thickness of photoelectrode is one of the important design considerations that can substantially improve the device performance in Quantum Dot Sensitized Solar cells. The present work deals with the influence of the Photoanode (PA) thickness on the photovoltaic performance of these excitonic solar cells. Optical, morphological and electrochemical properties of these films are studied using UV eVisible spectroscopy, Scanning electron microscopy and Cyclic Voltammetry. Sandwich solar cells assembled using these PAs are further characterized using Electrochemical Impedance Spectroscopy and Chronoamperometry to investigate the electron transfer processes occurring at the sensitized photoelectrode/ Electrolyte interface. These cells are then evaluated for their photovoltaic performance using JV characteristics. The results obtained are explained qualitatively invoking the thickness dependent parameters like Light harvesting efficiency and Electron transfer yield to establish the effect of PA thickness on the solar cell performance.
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