Zhang, Baowei, Ru, Yi, Zhou, Jiaqian, Jia, Jingtao, Song, Haoqiang, Liu, Zhongyi, Zhang, Linlin, Liu, Xuying, Zhong, Gui-Ming, Yong, Xue 
ORCID: 0000-0003-1674-754X et al (show 3 more authors)
(2024)
A Robust Anti-Thermal-Quenching Phosphor Based on Zero-Dimensional Metal Halide Rb3InCl6:xSb3.
Journal of the American Chemical Society, 146 (11).
pp. 7658-7667.
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ja-2023-14137t.R2_Proof_hi.pdf - Author Accepted Manuscript Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
High-power phosphor-converted white light-emitting diodes (hp-WLEDs) have been widely involved in modern society as outdoor lighting sources. In these devices, due to the Joule effect, the high applied currents cause high operation temperatures (>500 K). Under these conditions, most phosphors lose their emission, an effect known as thermal quenching (TQ). Here, we introduce a zero-dimensional (0D) metal halide, Rb3InCl6:xSb3+, as a suitable anti-TQ phosphor offering robust anti-TQ behavior up to 500 K. We ascribe this behavior of the metal halide to two factors: (1) a compensation process via thermally activated energy transfer from structural defects to emissive centers and (2) an intrinsic structural rigidity of the isolated octahedra in the 0D structure. The anti-TQ phosphor-based WLEDs can stably work at a current of 2000 mA. The low synthesis cost and nontoxic composition reported here can herald a new generation of anti-TQ phosphors for hp-WLED.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 7 Affordable and Clean Energy |
| Divisions: | Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 11 Mar 2024 09:35 |
| Last Modified: | 22 Mar 2024 20:07 |
| DOI: | 10.1021/jacs.3c14137 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3179245 |
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