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Perovskite white light-emitting diodes with a perovskite emissive layer blended with rhodamine 6G

Perovskite white light-emitting diodes were realized by using a mixture of sky-blue MAPb(Br 0.6 Cl 0.4 ) 3 and orange-red rhodamine 6G as the emissive layer. The influences of rhodamine 6G on the properties of perovskite films were investigated using absorption spectroscopy, steady-state and time-re...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2020-10, Vol.8 (37), p.12951-12958
Main Authors: Chang, Che-Yu, Hong, Wei-Li, Lo, Pei-Hsuan, Wen, Tzu-Hsiang, Horng, Sheng-Fu, Hsu, Ching-Ling, Chao, Yu-Chiang
Format: Article
Language:English
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Summary:Perovskite white light-emitting diodes were realized by using a mixture of sky-blue MAPb(Br 0.6 Cl 0.4 ) 3 and orange-red rhodamine 6G as the emissive layer. The influences of rhodamine 6G on the properties of perovskite films were investigated using absorption spectroscopy, steady-state and time-resolved photoluminescence spectroscopy, X-ray diffraction, scanning electron microscopy and confocal laser-scanning fluorescence microscopy. The emissions from MAPb(Br 0.6 Cl 0.4 ) 3 and rhodamine 6G were mixed to realize white light. The CIE chromaticity coordinates of (0.33, 0.4) and (0.36, 0.40) were obtained for devices with 2 wt% and 3 wt% rhodamine 6G, respectively. Perovskite white light-emitting diodes with only a single emissive layer of halide perovskites and rhodamine 6G were realized with the CIE chromaticity coordinates of (0.33, 0.40).
ISSN:2050-7526
2050-7534
DOI:10.1039/d0tc02471f