Optimal Designing of Higher Efficiency Chalcogenide Thin Film Solar Cell
Efficiency and performance of a solar cell greatly depends on physical processes on junction in addition to device material characteristics and size. In the present work, attempt is made to explore a better designing of solar cell with some trade-offs and compromise amongst different parameters to obtain maximum power output and better efficiency. Chalcogenide based CdSTe thin film solar cell is studied for the purpose. The proposed structure takes care of dealing against relatively low band gap of window material and its lattice mismatch with the absorber. Efficiency as high as 26.6% and power output to the level of (0.266 W/10 cm2) has been observed in our numerical simulation with PC1D. The result thus convincingly proves the superiority of our designed structure over conventional structures.
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