材料科学
基质(水族馆)
陶瓷
热导率
光电子学
复合材料
热的
功率密度
电流密度
产量(工程)
功率(物理)
海洋学
物理
气象学
地质学
量子力学
作者
Christine K. McGinn,Vikrant Kumar,Megan Noga,Zachary A. Lamport,Ioannis Kymissis
标识
DOI:10.1002/admt.202300390
摘要
MicroLEDs provide unrivaled luminance and operating lifetime, which has led to significant activity using devices for display and non-display applications. The small size and high power density of microLEDs, however, causes increased adverse heating effects which can limit performance. A new generation of electrically insulating high thermal conductivity materials, such as alumina, has been proposed to mitigate these thermal effects when used as a substrate as an alternative to glass. This strategy then could be used as a method of passive heatsinking to improve the overall performance of the microLED. In this work, a newly available material, an 80 micron thick alumina ceramic substrate, is shown to yield a 30 % improvement on average in the maximum current drive over a glass substrate.
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