@article{ZHOU2021, 
author = {Tianyuan ZHOU and Chen HOU and Le ZHANG and Yuelong MA and Jian KANG and Tao LI and Rui WANG and Jin HUANG and Junwei LI and Haidong REN and Zhenxiao FU and Farida A. SELIM and Ming LI and Hao CHEN},
title = {Efficient spectral regulation in Ce:Lu3(Al,Cr)5O12 and Ce:Lu3(Al,Cr)5O12/Ce:Y3Al5O12 transparent ceramics with high color rendering index for high-power white LEDs/LDs},
year = {2021},
journal = {Journal of Advanced Ceramics},
volume = {10},
number = {5},
pages = {1107-1118},
keywords = {Ce,Cr:LuAG TC, spectral regulation, energy transfer, color rendering index (CRI), white LEDs/LDs},
url = {https://www.sciopen.com/article/10.1007/s40145-021-0496-8},
doi = {10.1007/s40145-021-0496-8},
abstract = {Realizing a high color rendering index (CRI) in Ce:LuAG transparent ceramics (TCs) with desired thermal stability is essential to their applications in white LEDs/LDs as color converters. In this study, based on the scheme of configuring the red component by Cr3+ doping, an efficient spectral regulation was realized in Ce,Cr:LuAG TCs. A unilateral shift phenomenon could be observed in both photoluminescence (PL) and photoluminescence excitation (PLE) spectra of TCs. By constructing TC-based white LED/LD devices in a remote excitation mode, luminescence properties of Ce,Cr:LuAG TCs were systematically investigated. The CRI values of Ce:LuAG TC based white LEDs could be increased by a magnitude of 46.2%. Particularly, by combining the as fabricated Ce,Cr:LuAG TCs with a 0.5 at% Ce:YAG TC, surprising CRI values of 88 and 85.5 were obtained in TC based white LEDs and LDs, respectively. Therefore, Ce,Cr:LuAG TC is a highly promising color convertor for high-power white LEDs/LDs applied in general lighting and displaying.}
}