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Detrimental effect of silver doping in spiro-MeOTAD on the device performance of perovskite solar cells

Jing-Jing Liang, Meng Li, Jun-Yi Zhu, Hao Zong, Yue Zhang, Sagar Jain, Zhao-Kui Wang

Organic Electronics, Volume: 69, Pages: 343 - 347

Swansea University Author: Sagar Jain

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DOI (Published version): 10.1016/j.orgel.2019.03.036

Abstract

Despite hybrid organic-inorganic perovskite solar cells (PSCs) have reached a rapid improvement in solar cell efficiency. The long-term operational stability of PSCs is still under course of development. Here, we investigated the infiltration effects of Ag+ into the adjacent hole transporting layer...

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Published in: Organic Electronics
ISSN: 1566-1199
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49780
Abstract: Despite hybrid organic-inorganic perovskite solar cells (PSCs) have reached a rapid improvement in solar cell efficiency. The long-term operational stability of PSCs is still under course of development. Here, we investigated the infiltration effects of Ag+ into the adjacent hole transporting layer (HTL) in the PSCs, by directly doping Ag+ into the conventional Spiro-MeOTAD layer (HTL) and the essential characterization analysis were also applied. The result distinctly demonstrated that the Ag-ion migration potentially triggers the performance degradation in PSCs. The incorporation of Ag+ brought deep-level defects in the Spiro-MeOTAD layer and consequently caused a deterioration of the hole-transporting ability of Spiro-MeOTAD leading to degradation of solar cell performance. Understanding the impacts of the metal electrode penetration in the HTL will promote advancing in the overall stability performance of PSCs.
Keywords: Perovskite solar cells, Hole-transporting layer, Spiro-OMeTAD, Stability
College: Faculty of Science and Engineering
Start Page: 343
End Page: 347

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