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All Journal International Journal of Electrical and Computer Engineering TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics
Nguyen Thi Phuong Loan
Posts and Telecommunications Institute of Technology
Computer Science & IT Electrical & Electronics Engineering

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Study of ZnS:Mn2+,Te2+ phosphor for improving the hue rendering indicator of WLEDs Van Liem Bui; Nguyen Thi Phuong Loan; Phan Xuan Le
Bulletin of Electrical Engineering and Informatics Vol 11, No 4: August 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v11i4.4061

Abstract

This research combines a phosphor-in-glass (PiG) YAG:Ce3+ with a red liquid-type quantum dot (LQD) to invent high-quality white light-emitting diodes (WLEDs). When the PiG LQD-built WLEDs reach 100 mA, they provide heated white illumination offering an outstanding color rendering index (CRI) (Ra=93.9, R9=97.7, and R13=98.1). The luminescent efficiency (LE) and correlating chromatic temperature, correspondingly, are 62 lm/W and 3764 K. In comparison to PiG integrated with solid-kind quantum dot, it has great LE, remarkable CRI, and lower top layer temperature because of self-aggregation and impediment in the outside flaws in semiconductor quantum dots (QDs) of the solid-condition, as well as effective thermal dissipation. The findings suggest that the produced WLEDs could be potential in high-quality lighting applications.
Co-Authors Anh Tuan Le Anh-Minh D. Tran Hoang Van Ngoc Huu Phuc Dang Le Van Tho My Hanh Nguyen Thi My Hanh Nguyen Thi Nguyen Doan Quoc Anh Nguyen Doan Quoc Anh Nguyen Doan Quoc Anh Nguyen Thi Kim Chung Phan Xuan Le Phan Xuan Le Phung Ton That Sang Dang Ho Thanh Tung Nguyen Thinh Cong Tran Thinh Cong Tran Thuc Minh Bui Tri-Vien Vu Van Liem Bui