지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
We studied white tandem organic light-emitting diodes using blue and red phosphorescent materials. Optimized white single phosphorescent OLED was fabricated using CBP : FIrpic (12 vol.%, 9 nm) / CBP : Ir(mphmq)₂acac : Ir(ppy)₃ (1 vol.%, 1 vol.%, 1 nm) as emitting layer (EML). The single phosphorescent OLED showed maximum current efficiency of 22.5 cd/A, white emission with a Commission Internationale de l"Eclairage (CIE) coordinates of (0.342, 0.37) at 1,000 cd/㎡, and variation of CIE coordinates with (0.339
± 0.008, 0.371 ± 0.001) from 500 to 3,000 cd/㎡. Optimized white tandem phosphorescent OLED was fabricated using CBP : FIrpic (12 vol.%, 7 nm) / CBP : Ir(mphmq)₂acac : Ir(ppy)₃ (1 vol.%, 1 vol.%, 3 nm) as EML. The tandem phosphorescent OLED showed maximum current efficiency of 49.2 cd/A, white emission with a CIE coordinates of (0.376, 0.366) at 1,000 cd/㎡, variation of CIE coordinates with (0.375 ± 0.004, 0.367 ± 0.002) from 500 to 3,000 cd/㎡. Maximum current efficiency of tandem phosphorescent OLED was more twice as high as single phosphorescent OLED. Our results suggest that tandem phosphorescent OLED was possible to control CIE coordinates and produce excellent color stability.
± 0.008, 0.371 ± 0.001) from 500 to 3,000 cd/㎡. Optimized white tandem phosphorescent OLED was fabricated using CBP : FIrpic (12 vol.%, 7 nm) / CBP : Ir(mphmq)₂acac : Ir(ppy)₃ (1 vol.%, 1 vol.%, 3 nm) as EML. The tandem phosphorescent OLED showed maximum current efficiency of 49.2 cd/A, white emission with a CIE coordinates of (0.376, 0.366) at 1,000 cd/㎡, variation of CIE coordinates with (0.375 ± 0.004, 0.367 ± 0.002) from 500 to 3,000 cd/㎡. Maximum current efficiency of tandem phosphorescent OLED was more twice as high as single phosphorescent OLED. Our results suggest that tandem phosphorescent OLED was possible to control CIE coordinates and produce excellent color stability.
목차
Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (13)
참고문헌 신청
C. -S. Park, S. -H. Ju, Emission characteristics of white organic light-emitting diodes using blue fluorescent and red phosphorescent materials, J. Korean Inst. Electr. Electron. Mater. Eng., 28 (2015) 704-710.
C. W. Tang, S. V. Vanslyke, Organic electroluminescent diodes, Appl. Phys. Lett., 51 (1987) 913- 915.
J. Kido, M. Kimura, K. Nagai, Multilayer white light-emitting organic electroluminescent devices, Science, 267 (1995) 1332-1334.
J. A. Lim, S. H. Ju, J. W. Yang, The effect of passivation film with inorganic/epoxy layers on life time characteristics of OLED device, J. Kor. Inst Surf. Eng., 42 (2009) 287-293.
F. Jing, L. Feng, G. Wenbao, L. Shiyong, White light emission from exciplex using tris-(8- hydroxyquinoline)aluminum as chromaticity-tuning layer, Appl. Phys. Lett., 78 (2001) 3947-3949.
C. W. Tang, S. V. Vanslyke, Organic electroluminescent diodes, Appl. Phys. Lett., 51 (1987) 913- 915.
J. Kido, M. Kimura, K. Nagai, Multilayer white light-emitting organic electroluminescent devices, Science, 267 (1995) 1332-1334.
J. A. Lim, S. H. Ju, J. W. Yang, The effect of passivation film with inorganic/epoxy layers on life time characteristics of OLED device, J. Kor. Inst Surf. Eng., 42 (2009) 287-293.
F. Jing, L. Feng, G. Wenbao, L. Shiyong, White light emission from exciplex using tris-(8- hydroxyquinoline)aluminum as chromaticity-tuning layer, Appl. Phys. Lett., 78 (2001) 3947-3949.
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UCI(KEPA) : I410-ECN-0101-2016-581-002873400