Journal
NANO RESEARCH
Volume 10, Issue 4, Pages 1329-1335Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-017-1432-7
Keywords
perovskite; light-emitting diodes; cesium; emission properties; external quantum efficiency
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Funding
- National Key Research and Development Program of China [2016YFB0401602]
- National Basic Research Program of China [2015CB932200]
- National Natural Science Foundation of China [51522209, 91433204, 51372223, 91333203, 11474164, 61405091]
- Natural Science Foundation of Jiangsu Province, China [BK20131413, BK20140952]
- Fundamental Research Funds for the Central Universities [2015FZA3005]
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We report the formation of high-quality Cs(0.4)MA(0.6)PbBr(3) thin films with nearly full surface coverage and good emission properties upon the introduction of Cs+ into perovskite crystals. The Cs(0.4)MA(0.6)PbBr(3) thin films were applied as emissive layers in light-emitting diodes. A maximum external quantum efficiency of similar to 2.0% was achieved for these green-emitting devices.
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