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Title: Highly crystalline Zn2SnO4 nanoparticles as efficient electron-transporting layers toward stable inverted and flexible conventional perovskite solar cells

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/c6ta05745d· OSTI ID:1343590
 [1];  [2];  [2];  [2];  [3];  [2]
  1. Univ. of Washington, Seattle, WA (United States); Harbin Institute of Technology, Harbin (China)
  2. Univ. of Washington, Seattle, WA (United States)
  3. Harbin Institute of Technology, Harbin (China)

In this paper, we have successfully utilized a facile hydrothermal method to prepare crystalline Zn2SnO4 nanoparticles (ZSO NPs) and applied them as an efficient electron-transporting layer (ETL) via a simple room-temperature solution process for perovskite solar cells (PVSCs). The superior semiconducting properties of this ZSO-based ETL enable an efficient (PCE: 17.7%) inverted p–i–n PVSC to be fabricated with respectable ambient stability. It can retain over 90% of its original PCE after being stored under ambient conditions for 14 days under 30 ± 5% relative humidity. Moreover, it also facilitates the fabrication of efficient conventional n–i–p PVSCs with a PCE of –14.5% and –11.4% achieved on a glass/ITO rigid substrate and PEG/ITO flexible substrate, respectively.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Contributing Organization:
This work is supported by the Office of Naval Research (N00014- 14-1-0246), the National Science Foundation (DMR-1608279), the Asian Office of Aerospace R&D (FA2386-15-1-4106), and the Department of Energy SunShot (DE-EE 0006710). A. K.-Y. Jen thanks the Boeing–Johnson Foundation for their nancial support. X. Liu thanks the State-Sponsored Scholarship for Graduate Students from China Scholarship Council. The authors thank Nan Li for the contact angle measurements.
DOE Contract Number:
EE0006710
OSTI ID:
1343590
Report Number(s):
DOE-UW-Jen-24; JMCAET
Journal Information:
Journal of Materials Chemistry. A, Vol. 4, Issue 40; ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English

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