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Control of Emission Color of High Quantum Yield CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> Perovskite Quantum Dots by Precipitation Temperature
Advanced Science · 2015 · Vol. 2(9) · pp. 1500194–1500194
He Huang(City University of Hong Kong)Andrei S. Susha(City University of Hong Kong)Stephen V. Kershaw(City University of Hong Kong)Tak Fu Hung(City University of Hong Kong)Andrey L. Rogach✉(City University of Hong Kong)
Abstract
<b>Emission color controlled, high quantum yield CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> perovskite quantum dots</b> 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.
Perovskite Materials and ApplicationsOrganic Light-Emitting Diodes ResearchOptical properties and cooling technologies in crystalline materialsQuantum yieldPerovskite (structure)Quantum dotYield (engineering)Materials sciencePrecipitationEmission spectrumQuantumPhotoluminescenceRadiative transfer
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References
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