Influence of organic cations on high-performance CH3NH3PbI3 based photovoltaics
文摘

The libration of organic cations was observed by Raman scattering.

The interaction between the cations and Pb–I framework strongly influences the JSC.

The Voc is dependent on the Fermi level of the perovskite thin film.

The PCE of perovskite photovoltaics is limited by the trade-off between JSC and VOC.

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