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Abstract:
White-light emission has evoked great attention as one of the most promising technologies in the applications of solid-state lighting devices, light emitting diodes, and flat-panel displays. However, up to now, pure white-light emitting materials have rarely been reported. Here, we present a single-component white-light emitting semiconductor, [C5H9-NH3]4CdBr6, which exhibits CIE chromaticity coordinates of (0.33, 0.33). Notably, this value is the same as that of the standard pure white-light emission. Remarkably, it shows an ultrahigh color rendering index of 92.5, which exceeds that of mixed-phosphor light sources and is comparable to the recently reported highest one among single-component materials. Mechanistic studies indicate that the white-light emission originates from the synergetic effect of deep defects coupled with the organic component. Such an organic-inorganic hybrid with outstanding color characteristics will pave a new approach in the development of white-light emitting materials with practical applications. © 2017 The Royal Society of Chemistry.
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Journal of Materials Chemistry C
ISSN: 2050-7534
Year: 2017
Issue: 19
Volume: 5
Page: 4731-4735
5 . 9 7 6
JCR@2017
5 . 7 0 0
JCR@2023
ESI HC Threshold:306
JCR Journal Grade:1
CAS Journal Grade:2
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