A semi-conductive organic–inorganic hybrid emits pure white light with an ultrahigh color rendering index. Issue 19 (2nd May 2017)

• Record Type: Journal Article
• Authors: Wang, Sasa; Li, Lina; Sun, Zhihua; Ji, Chengmin; Liu, Sijie; Wu, Zhenyue; Zhao, Sangen; Zeb, Aurang; Hong, Maochun; Luo, Junhua
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 19(2017)
• Page Start: 4731
• Page End: 4735
• Publication Date: 2017-05-02
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7tc00279c
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A single-component semiconductor emits pure white light with CIE chromaticity coordinates of (0.33, 0.33) and an ultrahigh color rendering index of 92.5. 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, [C5 H9 –NH3 ]4 CdBr6, 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.