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

Authors :: Chang, Che-Yu
Hong, Wei-Li
Lo, Pei-Hsuan
Wen, Tzu-Hsiang
Horng, Sheng-Fu
Hsu, Ching-Ling
Chao, Yu-Chiang
Source :: Journal of Materials Chemistry C; 10/7/2020, Vol. 8 Issue 37, p12951-12958, 8p
Publication Year :: 2020
Abstract: Perovskite white light-emitting diodes were realized by using a mixture of sky-blue MAPb(Br<subscript>0.6</subscript>Cl<subscript>0.4</subscript>)<subscript>3</subscript> 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<subscript>0.6</subscript>Cl<subscript>0.4</subscript>)<subscript>3</subscript> 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. [ABSTRACT FROM AUTHOR]

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