Effect of BSF layer on the performance of CdTe solar cell

Solar cell having CdTe as absorber layer are suffering from problem of ohmic contact at back surface because of high affinity and large work function requirement of CdTe. The BSF material not only solves this problem but also improves the efficiency with the optimum thickness of absorber layer. The...

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Bibliographic Details
Main Authors: Shukla, Virang, Panda, Gopal
Format: Conference Proceeding
Language:English
Subjects:
BSF layer
CdS: O
SCAPS-1D
Simulation
Thin film solar cell
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Summary:Solar cell having CdTe as absorber layer are suffering from problem of ohmic contact at back surface because of high affinity and large work function requirement of CdTe. The BSF material not only solves this problem but also improves the efficiency with the optimum thickness of absorber layer. The use of BSF layer also provides the stability against high temperature as compare to conventional solar cell. The performances of both solar cells were simulated using SCAPS-1D simulation program. Simulation result shows that the conventional solar cell (CdTe/CdS:O/ZnO/SnO2) shows efficiency 14.87% (VOC = 0.6482, JSC = 28.583508 and FF = 80.24) with CdTe thickness of 5000 nm and CdS thickness of 25 nm. After inserting Cu2Te as BSF layer and reducing CdS: O thickness up to 5 nm cell shows the efficiency of 19.06% (VOC = 0.7909, JSC = 29.49315 and FF = 81.73) with just 1000 nm thickness of CdTe layer.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2020.12.394