Improved ambient-stable perovskite solar cells enabled by a hybrid polymeric electron-transporting layer

Zhu, Zonglong; Chueh, Chu -Chen; Zhang, Guangye; Huang, Fei; Yan, He; Jen, Alex K. -Y.

doi:10.1002/cssc.201600921

Title: Improved ambient-stable perovskite solar cells enabled by a hybrid polymeric electron-transporting layer

Journal Article · Fri Aug 26 04:00:00 UTC 2016 · ChemSusChem

DOI: https://doi.org/10.1002/cssc.201600921 · OSTI ID:1343594

Zhu, Zonglong ^[1]; Chueh, Chu -Chen ^[2]; Zhang, Guangye ^[3]; Huang, Fei ^[4]; Yan, He ^[3]; Jen, Alex K. -Y. ^[2]

Univ. of Washington, Seattle, WA (United States); University of Washington
Univ. of Washington, Seattle, WA (United States)
Hong Kong Univ. of Science and Technology, Kowloon (Hong Kong)
South China Univ. of Technology, Guangzhou (People's Republic of China)

In this study, an efficient inverted perovskite solar cell with decent ambient stability is successfully demonstrated by employing an n-type polymer, poly{[N,N’-bis(2-octyldodecyl)- 1,4,5,8-naphthalene diimide-2,6-diyl]-alt-5,5’-(2,2’-bithiophene)} (N2200), as the electron-transporting layer (ETL). The device performance can be further enhanced from a power conversion efficiency (PCE) of 15 to 16.8% by tailoring the electronic properties of N2200 with a polymeric additive, poly[9,9-bis(6’- (N,N’-diethylamino)propyl)-fluorene-alt-9,9-bis(3-ethyl(oxetane- 3-ethyloxy)-hexyl) fluorene] (PFN-Ox). More importantly, the device derived from this hybrid ETL can maintain good ambient stability inherent from the pristine N2200 ETL, for which 60–70% of initial PCE can be retained after being stored in air with 10–20% humidity for 45 days.

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Research Organization:: Univ. of Washington, Seattle, WA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Contributing Organization:: This work was supported by the National Science Foundation (DMR-1608279), the Office of Naval Research (N00014-14-1-0246), the Asian Office of Aerospace R&D (FA2386-15-1-4106), and the Department of Energy SunShot (DE-EE 0006710). A.J. thanks the Boeing-Johnson Foundation for financial support. H.Y. thanks Hong Kong Innovation and Technology Commission for the support through ITC-CNERC14SC01.

Grant/Contract Number:: EE0006710

OSTI ID:: 1343594

Report Number(s):: DOE-UW-Jen--26

Journal Information:: ChemSusChem, Journal Name: ChemSusChem Journal Issue: 18 Vol. 9; ISSN 1864-5631

Publisher:: ChemPubSoc EuropeCopyright Statement

Country of Publication:: United States

Language:: English

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Efficient Inverted Perovskite Solar Cells by Employing N‐Type (D–A ₁ –D–A ₂ ) Polymers as Electron Transporting Layer Said, Ahmed Ali; Xie, Jian; Wang, Yang Small, Vol. 15, Issue 29 https://doi.org/10.1002/smll.201803339	journal	October 2018
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Title: Improved ambient-stable perovskite solar cells enabled by a hybrid polymeric electron-transporting layer

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