적색과 청색 형광 물질을 사용한 백색 적층 OLED
White Tandem Organic Light-Emitting Diodes Using Red and Blue Fluorescent Materials
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초록
We studied white tandem organic light-emitting diodes using red and blue fluorescent materials. White 2 units tandem OLEDs were fabricated using Alq3:Rubrene (3 vol.% 5 nm) and SH-1 : BD-2 (3 vol.% 25 nm) as emitting layer (EML). The device with Alq3 : Rubrene (3 vol.% 5 nm) / SH-1 : BD-2 (3 vol.% 25 nm) showed yellowish white emission with a Commission Internationale de l'Eclairage (CIE) coordinates of (0.442, 0.473) at 1,000 cd/m2, and variation of CIE coordinates was low with (0.44 ± 0.002, 0.472 ± 0.001) from 500 to 3,000 cd/m2. White 3 units tandem OLEDs were fabricated by additory stacking the blue or white layer as EML. CIE coordinates of 3 units tandem OLEDs with stacked blue and white layer was low variation of (0.293 ± 0.008, 0.36 ± 0.005) and (0.412 ± 0.002, 0.423 ± 0.001) from 500 to 3,000 cd/m2, respectively. Our findings suggest that stacked OLED was possible to controlling CIE coordinates and producing excellent color stability.
Abstract
We studied white tandem organic light-emitting diodes using red and blue fluorescent materials. White 2 units tandem OLEDs were fabricated using Alq3:Rubrene (3 vol.% 5 nm) and SH-1 : BD-2 (3 vol.% 25 nm) as emitting layer (EML). The device with Alq3 : Rubrene (3 vol.% 5 nm) / SH-1 : BD-2 (3 vol.% 25 nm) showed yellowish white emission with a Commission Internationale de l'Eclairage (CIE) coordinates of (0.442, 0.473) at 1,000 cd/m2, and variation of CIE coordinates was low with (0.44 ± 0.002, 0.472 ± 0.001) from 500 to 3,000 cd/m2. White 3 units tandem OLEDs were fabricated by additory stacking the blue or white layer as EML. CIE coordinates of 3 units tandem OLEDs with stacked blue and white layer was low variation of (0.293 ± 0.008, 0.36 ± 0.005) and (0.412 ± 0.002, 0.423 ± 0.001) from 500 to 3,000 cd/m2, respectively. Our findings suggest that stacked OLED was possible to controlling CIE coordinates and producing excellent color stability.
참고문헌 (9)
- H. Y. Chu, , Electronics and Telecommunications Trend, pp.5~ (2013)
- 김현중, "단일 발광층을 갖는 조명용 2파장 백색 OLED 제작 및 특성 연구", 조명.전기설비학회논문지, 26(1), pp.15~21 (2012), 한국조명.전기설비학회
- J. Clark, , Nature, 4, pp.438~ (2010)
- T. Tsutsui, , Appl. Phys. Lett, 84, pp.440~ (2004)
- T. Tsutsui, , Appl. Phys. Lett, 90, pp.083502~ (2007)
- Fawen Guo, , Appl. Phys. Lett, 87, pp.173510~ (2005)
- Chieh-Wei Chen, , Appl. Phys. Lett, 87, pp.241121~ (2005)
- H. Kanno, , Adv. Mater, 18, pp.339~ (2006)
- 곽태호, "CGL의 재료에 따른 청색 형광 Tandem OLED의 발광 특성", 한국표면공학회지, 47(4), pp.210~214 (2014), 한국표면공학회[DOI]