Journal
COATINGS
Volume 11, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/coatings11030279
Keywords
perovskite; thin film; solar cells; power conversion efficiency; cesium
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Funding
- Research Council of Lithuania [01.2.2-LMT-K718-01-0050]
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Perovskite solar cells containing 10% cesium concentration exhibit maximum power conversion efficiency.
Cesium-containing triple cation perovskites are attracting significant attention as suitable tandem partners for silicon solar cells. The perovskite layer of a solar cell must strongly absorb the visible light and be transparent to the infrared light. Optical transmittance measurements of perovskite layers containing different cesium concentrations (0-15%) were carried out on purpose to evaluate the utility of the layers for the fabrication of monolithic perovskite/silicon tandem solar cells. The transmittance of the layers weakly depended on cesium concentration in the infrared spectral range, and it was more than 0.55 at 997 nm wavelength. It was found that perovskite solar cells containing 10% of cesium concentration show maximum power conversion efficiency.
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