Enhancing Efficiency of Perovskite Solar Cells via N-doped Graphene: Crystal Modification and Surface Passivation.

Hadadian, Mahboubeh; Correa-Baena, Juan-Pablo; Goharshadi, Elaheh K; Ummadisingu, Amita; Seo, Ji-Youn; Luo, Jingshan; Gholipour, Somayeh; Zakeeruddin, Shaik M et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Controlling the morphology and surface passivation in perovskite solar cells is paramount in obtaining optimal optoelectronic properties. This study incorporates N-doped graphene nanosheets in the perovskite layer, which simultaneously induces an improved morphology and surface passivation at the perovskite/spiro interface, resulting in enhancement in all photovoltaic parameters.