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

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• 作者：Xuejie Zhang ; Jinbo Yu ; Jing Wang ; Chenbiao Zhu ; Jinhui Zhang ; Rui Zou ; Bingfu Lei ; YingLiang Liu ; Mingmei Wu
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：December 30, 2015
• 年：2015
• 卷：7
• 期：51
• 页码：28122-28127
• 全文大小：477K
• ISSN：1944-8252

文摘

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.