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Fabrication of Cu2ZnSnS4 thin film solar cells by the spin coating technique

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5 Author(s)
Olopade, M.A. ; Dept. of Phys., Univ. of Lagos, Lagos, Nigeria ; Awe, O.E. ; Awobode, A.M. ; Oberafo, A.
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This study presents a novel investigation on thin film Cu2ZnSnS4 (CZTS) solar cells in the superstrate structure in which all the semiconductor layers were prepared under non-vacuum conditions. The solar cell structure (SLG)/FTO (Fluorine doped Tin-Oxide)/Ag/CdS/CZTS/Al had the SnO2:F (window), CdS (buffer) and CZTS (absorber) layers deposited by APCVD, Sol-gel and Sol-gel sulphurizing methods respectively. Each of the layers of the solar cells was first optimized before fabricating the solar cells. As a result of our investigations, the most efficient solar cell showed an open circuit voltage of 230mV, a short circuit current density of 4.40mA/cm2, a fill factor of 0.277 and a conversion efficiency of 0.28%.

Published in:

Semiconductor Electronics (ICSE), 2012 10th IEEE International Conference on

Date of Conference:

19-21 Sept. 2012