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Electrospun TiO2 nanorods assembly sensitized by CdS quantum dots: A low-cost photovoltaic material

Publication Type : Journal Article

Publisher : Energy and Environmental Science

Source : Energy and Environmental Science, Volume 3, Number 12, p.2010-2014 (2010)

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Keywords : adsorption, cadmium, Cadmium compounds, Cadmium sulfide, Cds, CdS quantum dots, composite, Conversion efficiency, Cost-Benefit Analysis, electrolyte, Electrospinning, Electrospuns, Energy conversion, Fabrication procedure, Fill factor, Low-cost solar cells, Mass production, Nanorods, Nanotechnology, Open Circuit Voltage, Optical waveguides, Overall power conversion efficiency, Photovoltaic devices, Photovoltaic materials, Photovoltaic parameters, photovoltaic system, Polysulfides, Processable, Quantum dots, Semiconductor quantum dots, Short-circuit photocurrent, Solar energy, solar power, Solar power generation, Successive ionic layer adsorption and reactions, Sun illumination, TiO, Titanium

Campus : Chennai

School : School of Dentistry

Department : Oral Medicine and Radiology

Year : 2010

Abstract : An easily processable nanostructure comprising a TiO2 nanorod (NR) core and CdS quantum dot (QD) shell is fabricated by electrospinning and a successive ionic layer adsorption and reaction (SILAR) method, respectively. The composite material is successfully assembled to photovoltaic devices for efficient solar energy conversion. Stable photovoltaic parameters of a short-circuit photocurrent density of 3.62 mA cm-2, an open-circuit voltage of 0.482 V, a fill factor of 0.30, and an overall power conversion efficiency of over 0.5% are obtained in the presence of a polysulfide electrolyte under standard 1 sun illumination of 100 mW cm-2. Without any elaborate and complicated fabrication procedures, the present methodology is believed to provide a promising mass production means for alternative low-cost solar cells as both electrospinning and SILAR are simple and scalable techniques. © The Royal Society of Chemistry.

Cite this Research Publication : Y. Shengyuan, A. S. Nair, Jose, R., and Ramakrishna, S., “Electrospun TiO2 nanorods assembly sensitized by CdS quantum dots: A low-cost photovoltaic material”, Energy and Environmental Science, vol. 3, pp. 2010-2014, 2010.

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