Journal
SILICON
Volume 15, Issue 1, Pages 293-303Publisher
SPRINGER
DOI: 10.1007/s12633-022-01960-9
Keywords
Electron mobility; Carriers transport; Perovskite solar cells; Optimization; Silvaco TCAD
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This paper presents a numerical model for evaluating the performance of a two-terminal tandem Perovskite-CIGS solar cell. Through a step-by-step optimization process, the model successfully simulated a tandem device with an efficiency of up to 20.84%. The study validates the model by comparing the obtained data with the fabricated cell. Tandem perovskite solar cells have attracted attention for their scalability, low cost, and high efficiency.
In this paper, a numerical model is designed to evaluate the performances of a two-terminal tandem Perovskite-CIGS solar cell. Tandem perovskite solar cells (TPSCs) are a type of device that has attracted great attention for their scalability, low cost, and high efficiency. In order to validate the investigated model, the obtained data have been compared with the fabricated cell. Since a tandem cell is quite complex, to obtain realistic results, the study was conducted in several steps by optimizing first the perovskite solar cell, then performing ultrathin CIGS solar cell, and finally the tandem structure. Intrinsic organic material Methylammonium lead iodide (CH3NH3PbI3) was used as an absorber layer and its thickness has been optimized. The effect of adding an anti-reflective coating (ARC) on the top of ITO front contact on PSC device performance was studied too. The cell efficiency of the optimized perovskite cells was achieved by about 16.13%. For a good substrate, the ultrathin CIGS (u-CIGS) solar cell was calibrated to the fabricated cell characteristics. Finally, a two-terminal perovskite/CIGS tandem device was successfully simulated with an efficiency of up to 20.84%.
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