Elucidating the Impact of Thin Film Texture on Charge Transport and Collection in Perovskite Solar Cells | Zendy

Chuanpeng Jiang | Zendy; Yuling Xie | Zendy; Richard R. Lunt | Zendy; Thomas W. Hamann | Zendy; Pengpeng Zhang | Zendy

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Elucidating the Impact of Thin Film Texture on Charge Transport and Collection in Perovskite Solar Cells

Author(s) -

Chuanpeng Jiang,

Yuling Xie,

Richard R. Lunt,

Thomas W. Hamann,

Pengpeng Zhang

Publication year - 2018

Publication title -

acs omega

Language(s) - English

Resource type - Journals

ISSN - 2470-1343

DOI - 10.1021/acsomega.8b00026

Subject(s) - perovskite (structure) , thin film , materials science , nucleation , dielectric spectroscopy , annealing (glass) , crystallite , texture (cosmology) , halide , optoelectronics , nanotechnology , composite material , electrochemistry , crystallography , electrode , chemistry , metallurgy , inorganic chemistry , computer science , image (mathematics) , organic chemistry , artificial intelligence

Organic-inorganic halide perovskites have emerged as one of the most promising materials for photovoltaic applications. Because of the polycrystalline nature of perovskite thin films, it is crucial to investigate the impact of microstructures on device performance. In this study, we employ ramp-annealing to tailor the texture of perovskite thin films via controlling the nucleation of perovskite grains. Electrochemical impedance spectroscopy studies further suggest that the thin film texture impacts not only the charge collection at the contact but also the carrier transport in the bulk perovskite layer. The combination of the two effects leads to enhanced performance in devices constructed of preferentially oriented perovskite thin films.

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