 Effect of annealing on photovoltaic characteristics of nanostructured p-Cu2S/n-CdS thin filmVidya S. Taur, Rajesh A. Joshi, Anil V. Ghule and Ramphal Sharma Renewable Energy, 2012, vol. 38, issue 1, 219-223 Abstract: Nanostructured heterojunction solar cells of CdS/Cu2S were grown by simple chemical ion exchange reaction by immersing the CdS thin films in Cu ion solution at room temperature. The as-grown nanostructured thin films were annealed at 250 °C in air for improving the interface and crystallinity of the heterojunction. These as grown and annealed nanostructured heterojunction were characterized for photovoltaic and other optoelectronic characteristics. Increase in conversion efficiency is obtained from annealed (η = 0.24%) than the as grown heterojunction (η = 0.09%), on illuminating to 100 mW/cm2 light source. The X-ray diffraction (XRD) pattern confirms improvement in crystallinity with increase in crystallite size from 29 to 32 nm on annealing. The optical absorbance strength observed to be increased along with red shift in energy band gap value from Eg = 2.02–2.20 eV after annealing. Keywords: Nanostructured heterojunction; Thin films; Ion exchange reaction; Structural properties; Photovoltaic applications (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:38:y:2012:i:1:p:219-223 DOI: 10.1016/j.renene.2011.07.024 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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