Stabilizing hybrid perovskites against moisture and temperature via non-hydrolytic atomic layer deposited overlayers
Journal Article
·
· Journal of Materials Chemistry. A
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Argonne Northwestern Solar Energy Research (ANSER) Center, Evanston, IL (United States)
We utilized a novel non-hydrolytic (nh) surface chemistry to allow the direct synthesis of pinhole-fee oxide overlayers directly on conventional hybrid perovskite halide absorbers without damage. By utilizing water- free ALD Al2O3 passivation, a minimum of ten-fold increase in stability against relative humidity (RH) 85% was achieved along with a dramatically improved thermal resistance (up to 250 °C). We extend this approach to synthesize nh-TiO2 directly on hybrid perovskites to establish its potential in inverted photovoltaic devices as a dual stabilizing and electron accepting layer, as evidenced by photoluminescence (PL) quenching.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Argonne-Northwestern Solar Energy Research Center (ANSER)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; SC0001059
- OSTI ID:
- 1356852
- Journal Information:
- Journal of Materials Chemistry. A, Vol. 3, Issue 40; ISSN 2050-7488
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 52 works
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