Journal
ADVANCED MATERIALS
Volume 29, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201603157
Keywords
blue emitting devices; color tunable; layered structures; organic-inorganic hybrid perovskite LEDs; structure modulation
Categories
Funding
- Ministry of Science and Technology [2014CB643505]
- Natural Science Foundation of China [51323003, 51573057, 51573059, 11574088]
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Adding 2-phenoxyethylamine (POEA) into a CH3NH3PbBr3 precursor solution can modulate the organic-inorganic hybrid perovskite structure from bulk to layered, with a photoluminescence and electroluminescence shift from green to blue. Meanwhile, POEA can passivate the CH(3)NH(3)PbBr(3)surface and help to obtain a pure CH3NH3PbBr3 phase, leading to an improvement of the external quantum efficiency to nearly 3% in CH3NH3PbBr3 LED.
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