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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Phu Tran Tin
Optoelectronics Research Group, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
Control & Systems Engineering Electrical & Electronics Engineering

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Using Green Emitting Phosphor for Improving Lighting Performance of In-cup Package White LED Lamps Phu Tran Tin; Nguyen Huu Khanh Nhan; Tran Hoang Quang Minh
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 8, No 1: March 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.067 KB) | DOI: 10.11591/ijpeds.v8.i1.pp125-129

Abstract

LED technology had a huge development in recent years with major benefits: long-life, high-efficiency, excellent performance, compactness. In this work, an innovative method for improving the performance of multi-chip white LED lamps (MCW-LEDs) by adding the green Ce0.67 Tb0.33 MgAl11 O19:Ce,Tb (CeTb) phosphor to their in-cup phosphor compounding is proposed, investigated and demonstrated. Firstly, CeTb was mixed to the in-cup phosphor package of MCW-LEDs. Then by varying CeTb concentration, lumen output and angular color uniformity (ACU) of MCW-LEDs was calculated and analyzed. The results showed that the lumen output and the ACU of 7000 K and 8500 K MCW-LEDs increased significantly in comparison with others related works. This method is a prospective ideal for future improving LED manufacture.
Co-Authors Nguyen Huu Khanh Nhan Tran Hoang Quang Minh