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External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light‐Emitting Diodes

2011; Volume: 23; Issue: 12 Linguagem: Inglês

10.1002/adma.201004372

1521-4095

Soon Ok Jeon, Sang Eok Jang, Hyo Suk Son, Jun Yeob Lee,

Luminescence and Fluorescent Materials

Advanced MaterialsVolume 23, Issue 12 p. 1436-1441 Communication External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes Soon Ok Jeon, Soon Ok Jeon Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorSang Eok Jang, Sang Eok Jang Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorHyo Suk Son, Hyo Suk Son Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorJun Yeob Lee, Corresponding Author Jun Yeob Lee leej17@dankook.ac.kr Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaDepartment of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of Korea.Search for more papers by this author Soon Ok Jeon, Soon Ok Jeon Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorSang Eok Jang, Sang Eok Jang Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorHyo Suk Son, Hyo Suk Son Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaSearch for more papers by this authorJun Yeob Lee, Corresponding Author Jun Yeob Lee leej17@dankook.ac.kr Department of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of KoreaDepartment of Polymer Science and Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Republic of Korea.Search for more papers by this author First published: 10 February 2011 https://doi.org/10.1002/adma.201004372Citations: 365Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Highly efficient deep blue phosphorescent organic light-emitting diodes (PHOLEDs) with external quantum efficiency above 20% are developed using a bipolar-type high-triplet-energy host material and a high-triplet-energy exciton blocking material. Maximum quantum efficiency of 25.1% and low roll-off (still 23.1% at 1000 cd m−2) are achieved in these deep blue PHOLEDs. Citing Literature Supporting Information Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Filename Description adma_201004372_sm_suppl.pdf575.9 KB suppl Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume23, Issue12March 25, 2011Pages 1436-1441 RelatedInformation