EFFECT OF DIFFERENT PbBr2 CONCENTRATIONS ON PERFORMANCE OF CsPbBr3 PEROVSKITE SOLAR CELLS

Cui Tianyang; Yang Wen; Yang Peizhi

doi:10.19912/j.0254-0096.tynxb.2024-2311

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 613-619. DOI: 10.19912/j.0254-0096.tynxb.2024-2311

EFFECT OF DIFFERENT PbBr₂ CONCENTRATIONS ON PERFORMANCE OF CsPbBr₃ PEROVSKITE SOLAR CELLS

Cui Tianyang, Yang Wen, Yang Peizhi

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Abstract

In this work, the CsPbBr₃ solar cells based on different concentrations of PbBr₂ are prepared by a multi-step spin coating method. The effect of different PbBr₂ concentrations on the photovoltaic performance of CsPbBr₃ solar cells is studied. The results showed that compared with CsPbBr₃ solar cells based on 0.6, 0.8 and 1.2 mol/L PbBr₂, the short-circuit current density of CsPbBr₃ solar cell with 1.0 mol/L PbBr₂ is effectively improved （7.47 mA/cm²）, which leads to an improvement in device efficiency （7.30%）. Characterization tests revealed that the CsPbBr₃ absorber layer prepared with a PbBr₂ concentration of 1.0 mol/L exhibits better uniformity, lower roughness, higher light absorption, and stronger electron-hole separation capability, leading to improved device efficiency.

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perovskite solar cells / solar cell efficiency / film preparation / precursor / CsPbBr₃

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Cui Tianyang, Yang Wen, Yang Peizhi. EFFECT OF DIFFERENT PbBr₂ CONCENTRATIONS ON PERFORMANCE OF CsPbBr₃ PEROVSKITE SOLAR CELLS[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 613-619 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2311

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