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-Dec-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
Appears in Collections:Articles


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