Color Stability of White Organic Light Emitting Devices with a Color Conversion Layer Utilizing CdSe/ZnS Quantum Dots and Phosphors Dispersed in Polymethylmethacrylate
- Authors
- Kwon, WJ; Kim, SH; Lee, KS; Choo, DC; Kim, SW; Kim, SW; Yoo, TW; Kwon, MS; Yoo, KH; Kim, TW
- Issue Date
- Jun-2013
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- White Organic Light-Emitting Device; Phosphor; Quantum Dots; Color Conversion Layer
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.6, pp.4390 - 4393
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 13
- Number
- 6
- Start Page
- 4390
- End Page
- 4393
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162655
- DOI
- 10.1166/jnn.2013.7002
- ISSN
- 1533-4880
- Abstract
- White organic light-emitting devices (WOLEDs) were fabricated by combining a blue emitting organic light-emitting devices (OLEDs) and a color conversion layer made of yttrium aluminum garnet phosphors and CdSe/ZnS quantum dots (QDs) embedded into polymethylmethacrylate. When the ratio of phosphors and QDs changed, a good color balance was achieved at a ratio of 1:5, and the maximum luminance of 18.21 cd/m(2) was obtained. As the applied voltage varied from 12 to 16 V, Commission Internationale de l'Eclairage coordinates shifted only slightly from (0.32, 0.34) to (0.30, 0.33), indicating a good color stability.
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