期刊
ADVANCED MATERIALS
卷 28, 期 37, 页码 8191-8196出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201601418
关键词
bimolecular recombination; light-emitting diodes; near-infrared lasing; perovskites; trap-states engineering; ultrafast spectroscopy
类别
资金
- Nanyang Technological University [M4080514, M4081293]
- Singapore Ministry of Education Academic Research Fund (AcRF) [RG184/14, RG101/15, MOE2013-T2-1-081, MOE2014-T2-1-044]
- NTU-A*STAR Silicon Technologies Center of Excellence Program [11235100003]
- Singapore National Research Foundation through the Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Program
- Competitive Research Program [NRF-CRP14-2014-03]
- National Basic Research Program of China - Fundamental Studies of Perovskite Solar Cells [2015CB932200]
The family of solution-processed tin-based perovskites is demonstrated as a new and superior near-infrared gain medium. Due to the large electron-hole bimolecular recombination associated with tin and the reduced trap density with SnF2 treatment, these lead-free green perovskites yield stable coherent light emission extending to approximate to 1 mu m at strikingly low thresholds.
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