期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 100, 期 4, 页码 1280-1284出版社
WILEY
DOI: 10.1111/jace.14733
关键词
glass; luminescence; phosphors; thick films
资金
- Kongju National University [2015-0734-01]
- National Research Foundation of Korea [22A20130012456, 22A20130012589] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Phosphor-in-glass (PiG) thick film was fabricated on a borosilicate glass substrate using a conventional screen printing method and employing phosphosilicate glass to allow low-temperature sintering. The vehicle content and sintering temperature were optimized to form a thick film with a thickness of similar to 50m. Commercial yellow (Y3Al5O12:Ce3+) and red (CaAlSiN3:Eu2+) phosphors were successfully incorporated within the glass matrix and then sintered at 550 degrees C. Color-tunable white LEDs were achieved using the PiG thick films as a color converter by varying the glass to phosphor (GtP) ratio. The high luminous efficacy of up to similar to 120lm/W and high color rendering index of up to 89 in combination with the thermal quenching property prove the practical feasibility of the PiG thick films for high-power/high-brightness LED applications.
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