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Silvaco TCAD Implementation of GaAs/GaSb Quantum Dot Solar Cell

S.M. Shafkat Nawaz, Farha Noor Nowrin Haque, Md. Iqbal Bahar Chowdhury

Abstract


In this work a GaAs/GaSb-based p-i-n quantum dot solar cell (QDSC) has been implemented in Silvaco TACD environment. The addition of GaSb Quantum dots (QD) in the GaAs intrinsic layer extends the absorption capability, for which photons with higher wavelengths can be absorbed to photo-generate more carriers resulting in the increase of the conversion efficiency of the solar cell. Simulation results reveal that a 8-layer GaAs/GaSb QDSC has a promising conversion efficiency of 26.05%.


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References


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