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IJSTR >> Volume 9 - Issue 1, January 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Low Cost Fabrication of EU: CdS/PbS Heterostructures

[Full Text]



N.Kavitha, R. Chandramohan, A. Mohamed Haroon Basha, K.K. Sivakumar and R. Swaminathan



CdS thin film, Europium doping, structural, optical, photovoltaic properties



The n type CdS with different doping level of Europium and p type PbS heterojunction solar cell was fabricated using Chemical Bath Deposition. CdS window layer was deposited on Indium tin Oxide (ITO) glass with 1% and 3% doping concentration of Europium. PbS absorber layer of thickness around 0.9 micron was grown on ITO/CdS to fabricate the p–n junction. The prepared three films were analyzed by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-Ray spectroscopy (EDS), UV-Vis spectroscopy and photovoltaic studies. The photovoltaic properties including J–V characteristics, short-circuit current (Isc), open-circuit voltage (Voc), fill factor (ff), efficiency (η) of CdS/PbS heterojunction cells have been as well examined. The results show that increasing the doping level of Europium on CdS improved the performances of the fabricated photovoltaic cells A high efficiency was observed at 3 % doping of Eu in CdS.



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