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Optical Properties of White Organic Light-Emitting Devices Fabricated Utilizing a Mixed CaAl12O19:Mn4+ and Y3Al5O12:Ce3+ Color Conversion Layer
- Issue Date
- Jun-2013
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- White Organic Light-Emitting Devices; Color Conversion Layer; Y3Al5O12:Ce3+ Phosphor; CaAl12O19:Mn4+ Phosphor
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.6, pp.4394 - 4397
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 13
- Number
- 6
- Start Page
- 4394
- End Page
- 4397
- ISSN
- 1533-4880
- Abstract
- White organic light-emitting devices (OLEDs) were fabricated by combining a blue OLED with a color conversion layer made of mixed Y3Al5O12:Ce3+ green and Ca12AlO19:Mn4+ red phosphors. The X-ray diffraction patterns showed that Ce3+ ions in the Y3Al5O12:Ce3+ phosphors completely substituted for the Y3+ ions and the Mn4+ ions in the CaAl12O19:Mn4+ phosphors completely substituted for the Ca2+ ions. Electroluminescence spectra at 11 V for the OLEDs fabricated utilizing a color conversion layer showed that the Commission Internationale de l'Eclairage coordinates for the Y3Al5O12:Ce3+ and CaAl12O19:Mn4+ phosphors mixed at the ratio of 1:5 and 1:10 were (0.31, 0.34) and (0.32, 0.37), respectively, indicative of a good white color.
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