What is it about?

quick synthesis of Cs4PbBr6 crystal with very little solvent.

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Why is it important?

Faster, cheaper, brighter


Cs4PbBr6 crystal have been synthesized by an ultrasonication-assisted trace amount of polar solvent method. The prepared green Cs4PbBr6 material was found to have high photoluminescence (PL) brightness and 10 ns PL lifetime. The prepared green light emitting device can achieve the maximum brightness of 3.8×109 cd/m2, which is nearly 100 times higher than the wick. The white light emitting device based on Cs4PbBr6 crystals has better performance than commercial products, which can cover 32.3% of the colour gamut and achieves 107.3% coverage for International Commission on Illumination (CIE)1931 and 84.8% coverage for CIE1976.

Qinglong Jiang
University of Arkansas System

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This page is a summary of: Ultrasonication-assisted trace amount solvent synthesis of Cs4PbBr6 crystal with ultra-bright green light emission, APL Materials, July 2020, American Institute of Physics,
DOI: 10.1063/5.0009852.
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