Patterned phosphor-in-glass films with efficient thermal management for high-power laser projection display

IF 18.6 1区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of Advanced Ceramics Pub Date : 2023-09-01 DOI:10.26599/jac.2023.9220809
Zezhong Yang, Song Zheng, Guoyu Xi, Tao Pang, Shaoxiong Wang, Qingying Ye, Bin Zhuang, Daqin Chen
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引用次数: 1

Abstract

Recently, high-performance color converters excitable by blue laser diode (LD) have been sprung up for projection display. However, thermal accumulation effect of color converters is a non-negligible problem under high-power LD irradiation. Herein, we developed a novel opto-functional composite (patterned CaAlSiN3: Eu2+ phosphor-in-glass film-Y3Al5O12: Ce3+ phosphor-in-glass film@Al2O3 plate with aluminum “heat sink”) via a thermal management methodology of combining “phosphor wheel” and “heat sink” for the lighting source of high-power laser projection display. This new composite design makes it effective to transport the generated thermal phonons away to reduce thermal ionization process, and to yield stable and high-quality white light with brightness of 4510 lm @ 43 W, luminous efficacy of 105 lm/W, correlated color temperature of 3541 K, and color rendering index of 80.0. Furthermore, the phosphor-in-glass film-converted laser projection system was also successfully designed, showing more vivid color effect than traditional LED-based projector. This work emphasizes the importance of thermal management upon high power laser irradiation, and hopefully facilitates the development of new LD-driven lighting source for high-power laser projection display.
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高功率激光投影显示用高效热管理的玻璃磷光膜
近年来,用于投影显示的蓝色激光二极管(LD)激发的高性能彩色转换器如雨后春笋般涌现。然而,在大功率LD照射下,颜色转换器的热积累效应是一个不可忽视的问题。在此,我们通过结合“荧光粉轮”和“散热器”的热管理方法,开发了一种新型的光功能复合材料(图案CaAlSiN3: Eu2+玻璃中磷薄膜y3al5o12: Ce3+玻璃中磷film@Al2O3板与铝“散热器”),用于大功率激光投影显示器的照明源。这种新型复合材料设计有效地将产生的热声子传输,减少了热电离过程,产生了亮度4510 lm @ 43 W、光效105 lm/W、相关色温3541 K、显色指数80.0的稳定高质量白光。此外,还成功设计了玻璃中磷薄膜转换的激光投影系统,其色彩效果比传统的led投影仪更加生动。本研究强调了热管理在高功率激光照射中的重要性,并有望促进大功率激光投影显示中新型led驱动照明光源的开发。
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来源期刊
Journal of Advanced Ceramics
Journal of Advanced Ceramics MATERIALS SCIENCE, CERAMICS-
CiteScore
21.00
自引率
10.70%
发文量
290
审稿时长
14 days
期刊介绍: Journal of Advanced Ceramics is a single-blind peer-reviewed, open access international journal published on behalf of the State Key Laboratory of New Ceramics and Fine Processing (Tsinghua University, China) and the Advanced Ceramics Division of the Chinese Ceramic Society. Journal of Advanced Ceramics provides a forum for publishing original research papers, rapid communications, and commissioned reviews relating to advanced ceramic materials in the forms of particulates, dense or porous bodies, thin/thick films or coatings and laminated, graded and composite structures.
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