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Adv Sci (Weinh). 2015 Jul 14;2(9):1500194. eCollection 2015 Sep.

Control of Emission Color of High Quantum Yield CH3NH3PbBr3 Perovskite Quantum Dots by Precipitation Temperature.

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Department of Physics and Materials, Science & Centre for Functional Photonics (CFP) City University of Hong Kong Hong Kong China.
Department of Physics and Materials Science City University of Hong Kong Hong Kong China.


Emission color controlled, high quantum yield CH3NH3PbBr3 perovskite quantum dots are obtained by changing the temperature of a bad solvent during synthesis. The products for temperatures between 0 and 60 °C have good spectral purity with narrow emission line widths of 28-36 nm, high absolute emission quantum yields of 74% to 93%, and short radiative lifetimes of 13-27 ns.


CH3NH3PbBr3; perovskite; photoluminescence; precipitation; quantum dots

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