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Highly Efficient GaN Vertical Light Emitting Diode on Metal Alloy Substrate from Near UV to Green Color for Solid State Lighting Application

机译:从近紫外到绿色的金属合金衬底上的高效GaN垂直发光二极管,用于固态照明应用

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摘要

GaN vertical LED on metal alloy substrate (VLEDMS) has been successfully realized for wavelength spectrum from near UV to green color. Owing to the vertical structure and highly heat-conductive metal alloy substrate, VLEDMS exhibits an ultra high brightness and excellent reliability suitable for solid state lighting (SSL) application. A brightness of 80Lm/W using 450 nm chip mixed with yellow phosphor was achieved by optimization of LED structure epitaxy, chip process and packaging. Using 405 nm chip with polychromatic phosphor a 50 Lm/W white light with color rendering index better than 90 was obtained. We also can get very good uniform correlated color temperature from package with VLEDMS chip.
机译:金属合金衬底上的GaN垂直LED(VLEDMS)已成功实现了从近紫外线到绿色的波长光谱。由于垂直结构和高导热的金属合金基板,VLEDMS具有超高亮度和出色的可靠性,适用于固态照明(SSL)应用。通过优化LED结构外延,芯片工艺和封装,将450 nm芯片与黄色荧光粉混合使用,可达到80Lm / W的亮度。使用带有多色磷光体的405 nm芯片,可获得50 Lm / W的白光,其显色指数优于90。我们还可以从采用VLEDMS芯片的封装中获得非常好的均匀相关色温。

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