Study of temperature distributions in pc-WLEDs with different phosphor packages

Bao Jen Shih, Shih Chen Chiou, Yu Hua Hsieh, Ching Cherng Sun, Tsung Hsun Yang, Szu Yu Chen, Te Yuan Chung

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


Phosphor converted white LEDs (pc-WLED) with different geometries, namely remote-dome, remote-plate, half-dome, and conformalcoating packages, were studied using simulations to obtain the thermal power and the temperature distribution. The results of an experiment carried out to measure the temperature distribution in these pc-WLEDs validate the simulation results. A hotspot always occurs in the phosphor region. The conformal-coating package is the most feasible choice to reduce the hotspot temperature comparing with the other geometries.

Original languageEnglish
Pages (from-to)33861-33869
Number of pages9
JournalOptics Express
Issue number26
StatePublished - 28 Dec 2015


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