Abstract
The solar cells have been fabricated using cadmium sulfide (CdS) as a sensitizer by the chemical bath deposition (CBD) technique on the mesoporous TiO2 substrate. The different device configurations with titanium(IV) tetrachloride (TiCl4) treatment, TiO2 compact layer, with mesoporous TiO2 along with CdS sensitizer layer, were investigated. The CdS film morphology, optical properties, and crystalline structure of CdS film were studied. It was observed that TiCl4 treatment helped in reducing the recombination at the interfaces between conducting glass and TiO2 compact layer enabling higher carrier transport. Power conversion efficiency of 1.44% is achieved using a TiCl4 treatment on TiO2 compact layer with TiO2 mesoporous/CdS device under illumination of 100 mW/cm2.
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Acknowledgements
BP would like to thank to Department of Science and Technology (Project No.-SB/FTP/PS-148/2013, and SR/S2/RJN-55/2012) for financial support. The authors are also thankful to Ministry of Human Resources and Development (MHRD) for their financial support (project No. F.No. 5-5/2014-TS.Vll). AM would also like to thank MNRE for National Renewable Energy Fellowship (SRF).
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Mahapatra, A., Kumar, P. & Pradhan, B. Improved performance of cadmium sulfide-sensitized solar cells by interface engineering. J Mater Sci: Mater Electron 31, 6274–6278 (2020). https://doi.org/10.1007/s10854-020-03182-4
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DOI: https://doi.org/10.1007/s10854-020-03182-4