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Title: Enhanced efficiency and stability of inverted perovskite solar cells using highly crystalline SnO2 nanocrystals as the robust electron-transporting layer

Journal Article · · Advanced Materials
 [1];  [2];  [1];  [1];  [2];  [1]
  1. Univ. of Washington, Seattle, WA (United States)
  2. The Hong Kong Univ. of Science and Technology, Kowloon (Hong Kong)

Here highly crystalline SnO2 is demonstrated to serve as a stable and robust electron-transporting layer for high-performance perovskite solar cells. Benefiting from its high crystallinity, the relatively thick SnO2 electron-transporting layer (≈120 nm) provides a respectable electron-transporting property to yield a promising power conversion efficiency (PCE)(18.8%) Over 90% of the initial PCE can be retained after 30 d storage in ambient with ≈70% relative humidity.

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 Office of Naval Research (N00014-14-1-0246), the Asian Office of Aerospace R&D (FA2386-11-1-4072), the Department of Energy SunShot (DE-EE0006710), HK Innovation and Technology Fund (ITS/004/14), and the NSFC/HK-RGC Joint Research Scheme (N_HKUST 610/14). Alex K.-Y. Jen thanks the Boeing-Johnson Foundation for their financial support.
Grant/Contract Number:
EE0006710
OSTI ID:
1343586
Report Number(s):
DOE-UW-Jen-20
Journal Information:
Advanced Materials, Vol. 28, Issue 30; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 391 works
Citation information provided by
Web of Science

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Solution-Processed Metal Oxide Nanocrystals as Carrier Transport Layers in Organic and Perovskite Solar Cells journal November 2018
Hydrothermally Treated SnO 2 as the Electron Transport Layer in High‐Efficiency Flexible Perovskite Solar Cells with a Certificated Efficiency of 17.3% journal May 2019
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