期刊
ACS ENERGY LETTERS
卷 6, 期 7, 页码 2499-2501出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.1c01015
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- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-FC02-04ER15533]
- Division of Materials Sciences and Engineering Office of Basic Energy Sciences of the U.S. Department of Energy [DE-SC0014334]
- Patrick and Jana Eilers Graduate Student Fellowship
- Forgash Fellowship for Solar Energy Research
The spacer cation used in 2D Ruddlesden-Popper lead halide perovskites affects the photoinduced phase segregation, with differences observed between using butylammonium (BA) and phenethylammonium (PEA) as spacer cations.
The spacer cation in two-dimensional (2D) Ruddlesden-Popper lead halide perovskites dictates photoinduced phase segregation. Halide ion segregation under steady-state irradiation of single-layer (n = 1) 2D perovskites is seen when butylammonium (BA) is used as the spacer cation, whereas it is essentially absent when BA is replaced with phenethylammonium (PEA).
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