Phosphor in glass using β-SiAlON:Eu2+, CaAlSiN3:Eu2+ and Nd-doped silicate glass for enhanced color gamut of white LEDPhosphor in glass using beta-SiAlON:Eu2+, CaAlSiN3:Eu2+ and Nd-doped silicate glass for enhanced color gamut of white LED
- Other Titles
- Phosphor in glass using beta-SiAlON:Eu2+, CaAlSiN3:Eu2+ and Nd-doped silicate glass for enhanced color gamut of white LED
- Authors
- Nam, Yoon Hee; Chung, Woon Jin; Im, Won Bin
- Issue Date
- Jan-2021
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Phosphors; Glass; Rare earths; Color gamut; LED
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, v.851, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ALLOYS AND COMPOUNDS
- Volume
- 851
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1649
- DOI
- 10.1016/j.jallcom.2020.156945
- ISSN
- 0925-8388
- Abstract
- A phosphor-in-glass (PiG) was fabricated to realize a robust white light emitting diode (wLED) with wide color gamut. β-SiAlON:Eu2+ and CaAlSiN3:Eu2+ were employed for the green and red phosphors, respectively. Nd2O3 doped silicate glass was used to reduce the emission bandwidths of the phosphors, utilizing the hypersensitive transition of Nd3+: I-4(9/2) -> (4)G(5/2), (2)G(7/2). The content of green and red phosphors was varied to produce a white emission. The emission spectra, color coordinates and color gamuts of the wLEDs with the PiGs were examined by varying phosphors and Nd2O3 content. A wLED with 5 mol% Nd2O3 doped glass had an enhanced color gamut up to 88%. The thermal stability of the PiGs was also monitored to demonstrate its practical feasibility as a white light source in display applications.
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