Facile Preparation and Ultrastable Performance of Single-Component White-Light-Emitting Phosphor-in-Glass used for High-Power Warm White LEDs

Xuejie Zhang; Jinbo Yu; Jing Wang; Chenbiao Zhu; Jinhui Zhang; Rui Zou; Bingfu Lei; YingLiang Liu; Mingmei Wu

doi:10.1021/acsami.5b09739

Facile Preparation and Ultrastable Performance of Single-Component White-Light-Emitting Phosphor-in-Glass used for High-Power Warm White LEDs

ACS Appl Mater Interfaces. 2015 Dec 30;7(51):28122-7. doi: 10.1021/acsami.5b09739. Epub 2015 Dec 19.

Authors

Xuejie Zhang¹, Jinbo Yu¹, Jing Wang¹, Chenbiao Zhu¹, Jinhui Zhang¹, Rui Zou¹, Bingfu Lei², YingLiang Liu², Mingmei Wu¹

Affiliations

¹ Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510275, China.
² College of Materials and Energy, South China Agriculture University , Guangzhou, Guangdong 510642, China.

PMID: 26675248
DOI: 10.1021/acsami.5b09739

Abstract

Long lifetime, excellent chromatic stability, and easily obtainable white light are becoming three outstanding challenges faced by the state-of-the-art high-power white LEDs. This study explored a novel single-component white-light-emitting phosphor-in-glass (PiG) for the first time. It has a quantum efficiency of 26.2% and exhibits excellent heat-resistance and good humidity-resistance characteristics which are rarely reported in traditional phosphor slurry. A proof-of-concept warm white LEDs was fabricated by combining PiG with near-ultraviolet chip-on-board (n-UV COB). This method reported in this letter will open a new and simple approach to obtain excellent performance single-component luminescent convertor for advanced high-power white LEDs.

Keywords: PiG; high-power white LEDs; single-component; stable; white-light-emitting.

Publication types

Research Support, Non-U.S. Gov't