A strong hole transport type host material for high quantum efficiency blue phosphorescent organic light-emitting diodes
作者： Seung Geon Yoo , Sang Kyu Jeon , Seok-Ho Hwang , Jun Yeob Lee
DOI: 10.1016/J.JIEC.2015.07.020
关键词: Optoelectronics 、 OLED 、 Trapping 、 Common emitter 、 Diode 、 Host material 、 Quantum efficiency 、 Phosphorescence 、 Charge (physics) 、 Physics 、 General Chemical Engineering
摘要: Abstract A strong hole transport type host material derived from bicarbazole and ditolylamine, 4,4′-(9H,9′H-[2,3′-bicarbazole]-9,9′-diyl)bis(N,N-di-p-tolylaniline) (BCTA), was synthesized as the of blue emitting tris[1-(2,4-diisopropyldibenzo[b,d]furan-3-yl)-2-phenylimidazole] (Ir(dbi)3) triplet emitter. The character BCTA compensated trapping effect Ir(dbi)3 optimized charge balance in layer, delivering 17.8% external quantum efficiency phosphorescent organic light-emitting diodes.
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sci-hub.se 参考文章(13)
Ji Han Kim, Seok-Ho Hwang, Wook Song, Jun Yeob Lee, Acridine modified dibenzothiophene derivatives as high triplet energy host materials for blue phosphorescent organic light-emitting diodes Dyes and Pigments. ,vol. 122, pp. 103- 108 ,(2015) , 10.1016/J.DYEPIG.2015.06.014
M. A. Baldo, D. F. O'Brien, Y. You, A. Shoustikov, S. Sibley, M. E. Thompson, S. R. Forrest, Highly efficient phosphorescent emission from organic electroluminescent devices Nature. ,vol. 395, pp. 151- 154 ,(1998) , 10.1038/25954
Jinyong Zhuang, Wanfei Li, Wenming Su, Yuan Liu, Qi Shen, Liangsheng Liao, Ming Zhou, None, Highly efficient phosphorescent organic light-emitting diodes using a homoleptic iridium(III) complex as a sky-blue dopant Organic Electronics. ,vol. 14, pp. 2596- 2601 ,(2013) , 10.1016/J.ORGEL.2013.06.029
Yifan Zhang, Jaesang Lee, Stephen R. Forrest, Tenfold increase in the lifetime of blue phosphorescent organic light-emitting diodes Nature Communications. ,vol. 5, pp. 5008- 5008 ,(2014) , 10.1038/NCOMMS6008
H. Yamamoto, J. Brooks, M. S. Weaver, J. J. Brown, T. Murakami, H. Murata, Improved initial drop in operational lifetime of blue phosphorescent organic light emitting device fabricated under ultra high vacuum condition Applied Physics Letters. ,vol. 99, pp. 033301- ,(2011) , 10.1063/1.3610998
Arnold B. Tamayo, Bert D. Alleyne, Peter I. Djurovich, Sergey Lamansky, Irina Tsyba, Nam N. Ho, Robert Bau, Mark E. Thompson, Synthesis and characterization of facial and meridional tris-cyclometalated iridium(III) complexes. Journal of the American Chemical Society. ,vol. 125, pp. 7377- 7387 ,(2003) , 10.1021/JA034537Z
Jeong-A Seo, Sang Kyu Jeon, Myoung Seon Gong, Jun Yeob Lee, Chang Ho Noh, Sung Han Kim, Long lifetime blue phosphorescent organic light-emitting diodes with an exciton blocking layer Journal of Materials Chemistry C. ,vol. 3, pp. 4640- 4645 ,(2015) , 10.1039/C5TC00640F
Chihaya Adachi, Marc A. Baldo, Mark E. Thompson, Stephen R. Forrest, Nearly 100% internal phosphorescence efficiency in an organic light-emitting device Journal of Applied Physics. ,vol. 90, pp. 5048- 5051 ,(2001) , 10.1063/1.1409582
Hyun Jin Park, Oh Young Kim, Jun Yeob Lee, Correlation of charge trapping and charge transport properties of blue triplet emitters with device performances of blue phosphorescent organic light-emitting diodes Synthetic Metals. ,vol. 176, pp. 47- 50 ,(2013) , 10.1016/J.SYNTHMET.2013.05.027
Shi-Jian Su, Eisuke Gonmori, Hisahiro Sasabe, Junji Kido, Highly Efficient Organic Blue‐and White‐Light‐Emitting Devices Having a Carrier‐ and Exciton‐Confining Structure for Reduced Efficiency Roll‐Off Advanced Materials. ,vol. 20, pp. 4189- 4194 ,(2008) , 10.1002/ADMA.200801375