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Improved Efficiency of Perovskite Solar Cells by the Interfacial Modification of the Active Layer.

ABSTRACT: As the most promising material for thin-film solar cells nowadays, perovskite shine for its unique optical and electronic properties. Perovskite-based solar cells have already been demonstrated with high efficiencies. However, it is still very challenging to optimize the morphology of perovskite film. In this paper we proposed a smooth and continuous perovskite active layer by treating the poly (3, 4-ethylenedioxythiophene): poly (styrenesulphonate) (PEDOT:PSS) with pre-perovskite deposition and dimethylsulfoxide (DMSO) rinse. The scanning electron microscope (SEM) and atomic force microscope (AFM) images confirmed a perovskite active layer consisting of large crystal grains with less grain boundary area and enhanced crystallinity. The perovskite devices fabricated by this method feature a high power conversion efficiency (PCE) of 11.36% and a short-circuit current (J_sc) of 21.9 mAcm^-2.

SUBMITTER: Lu Z

PROVIDER: S-EPMC6410319 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Improved Efficiency of Perovskite Solar Cells by the Interfacial Modification of the Active Layer.

Lu Zhen Z Wang Shangzhi S Liu Huijun H Feng Feng F Li Wenhua W

Nanomaterials (Basel, Switzerland) 20190205 2

As the most promising material for thin-film solar cells nowadays, perovskite shine for its unique optical and electronic properties. Perovskite-based solar cells have already been demonstrated with high efficiencies. However, it is still very challenging to optimize the morphology of perovskite film. In this paper we proposed a smooth and continuous perovskite active layer by treating the poly (3, 4-ethylenedioxythiophene): poly (styrenesulphonate) (PEDOT:PSS) with pre-perovskite deposition and ...[more]

PMID: 30764481

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