https://scholars.lib.ntu.edu.tw/handle/123456789/632169
標題: | Novel method for estimating phosphor conversion efficiency of light-emitting diodes | 作者: | Lin C.-H Huang C.-H Pai Y.-M Lee C.-F CHIEN-CHUNG LIN Sun C.-W Chen C.-H Sher C.-W Kuo H.-C. |
關鍵字: | Electro-optical devices; Light emitting diode | 公開日期: | 2018 | 卷: | 8 | 期: | 12 | 來源出版物: | Crystals | 摘要: | This study presents a novel method for estimating the phosphor conversion efficiency of white light-emitting diodes (WLEDs) with different ratios of phosphors. Numerous attempts have been made for predicting the phosphor conversion efficiency of WLEDs using Monte Carlo ray tracing and the Mie scattering theory. However, because efficiency depends on the phosphor concentration, obtaining a tight match between this model and the experimental results remains a major challenge. An accurate prediction depends on various parameters, including particle size, morphology, and packaging process criteria. Therefore, we developed an efficient model that can successfully correlate the total absorption ratio to the phosphor concentration using a simple equation for estimating the spectra and lumen output. The novel and efficient method proposed here can accelerate WLED development by reducing costs and saving fabrication time. © 2018 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063436322&doi=10.3390%2fcryst8120442&partnerID=40&md5=108d2ae159bc20228f198445e6303ed6 https://scholars.lib.ntu.edu.tw/handle/123456789/632169 |
ISSN: | 20734352 | DOI: | 10.3390/cryst8120442 |
顯示於: | 電機工程學系 |
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