Holmium rare earth metal ion incorporated and ambient-air processed all-inorganic γ-CsPbI2.5Br0.5 perovskite solar cells yielding high efficiency and stable performance

J. Mater. Chem. A, 2023, 11,21312-21321
DOI: 10.1039/D3TA03042C, Paper
Jyoti V. Patil, Sawanta S. Mali, Chang Kook Hong
Ambient-air processed highly efficient inorganic perovskite solar cells with holmium rare earth metal ion incorporated γ-CsPbI2.5Br0.5-based perovskite surpassing 19% power conversion efficiency with improved stability.
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