Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 55, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/JJAP.55.060304
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Funding
- Japan Science and Technology Agency (JST) Advanced Low Carbon Technology R&D program (ALCA)
- JSPS KAKENHI [25286072, 26600119]
- Science Research Promotion Fund
- Grants-in-Aid for Scientific Research [26600119, 15H03573, 25286072, 16H03890] Funding Source: KAKEN
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We have measured photoluminescence spectra in CH3NH3PbBr3 at low temperatures and found a nonlinear emission at the lower energy side of the exciton resonance. Considering that this signal shows a rapid decay, we have assigned it as originating from the exciton-exciton inelastic scattering process called P-emission. The energy difference between this P-emission and the free exciton resonance is 20-30 meV, which is consistent with recent studies of the exciton binding energy. (C) 2016 The Japan Society of Applied Physics
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