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Long-Term Stability in Perovskite Solar Cells Through Atomic Layer Deposition of Tin Oxide

Journal Article · · Science

Robust contact schemes that boost stability and simplify the production process are needed for perovskite solar cells (PSCs). We codeposited perovskite and hole-selective contact while protecting the perovskite to enable deposition of SnOx/Ag without the use of a fullerene. The SnOx, prepared through atomic layer deposition, serves as a durable inorganic electron transport layer. Tailoring the oxygen vacancy defects in the SnOx layer led to power conversion efficiencies (PCEs) of >25%. Our devices exhibit superior stability over conventional p-i-n PSCs, successfully meeting several benchmark stability tests. They retained >95% PCE after 2000 hours of continuous operation at their maximum power point under simulated AM1.5 illumination at 65degrees C. Additionally, they boast a certified T97 lifetime exceeding 1000 hours.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE National Renewable Energy Laboratory (NREL)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2478108
Report Number(s):
NREL/JA-5K00-90231; MainId:92009; UUID:0ec609c1-7d3a-4e88-8679-0d82d26de018; MainAdminId:74301
Journal Information:
Science, Journal Name: Science Journal Issue: 6718 Vol. 386
Country of Publication:
United States
Language:
English

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