Bandgap-tunable cesium lead halide perovskites with high thermal stability for efficient solar cells

Highest reported efficiency cesium lead halide perovskite solar cells are realized by tuning the bandgap and stabilizing the black perovskite phase at lower temperatures. CsPbI2Br is employed in a planar architecture device resulting in 9.8% power conversion efficiency and over 5% stabilized power o...

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Dades bibliogràfiques
Autors principals: Sutton, R, Eperon, G, Miranda, L, Parrott, E, Kamino, B, Patel, J, Hörantner, M, Johnston, M, Haghighirad, A, Moore, D, Snaith, H
Format: Journal article
Publicat: 2016
Descripció
Sumari:Highest reported efficiency cesium lead halide perovskite solar cells are realized by tuning the bandgap and stabilizing the black perovskite phase at lower temperatures. CsPbI2Br is employed in a planar architecture device resulting in 9.8% power conversion efficiency and over 5% stabilized power output. Offering substantially enhanced thermal stability over their organic based counterparts, these results show that all-inorganic perovskites can represent a promising next step for photovoltaic materials.