標題: | Novel Method for Estimating Phosphor Conversion Efficiency of Light-Emitting Diodes |
作者: | Lin, Chih-Hao Huang, Che-Hsuan Pai, Yung-Min Lee, Chung-Fu Lin, Chien-Chung Sun, Chia-Wei Chen, Cheng-Huan Sher, Chin-Wei Kuo, Hao-Chung 光電系統研究所 光電工程學系 光電工程研究所 Institute of Photonic System Department of Photonics Institute of EO Enginerring |
關鍵字: | light emitting diode;electro-optical devices |
公開日期: | 1-十二月-2018 |
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. |
URI: | http://dx.doi.org/10.3390/cryst8120442 http://hdl.handle.net/11536/148659 |
ISSN: | 2073-4352 |
DOI: | 10.3390/cryst8120442 |
期刊: | CRYSTALS |
Volume: | 8 |
顯示於類別: | 期刊論文 |