High‐Efficiency Fluorescent Organic Light‐Emitting Devices Using Sensitizing Hosts with a Small Singlet–Triplet Exchange Energy

Advanced MaterialsVolume 26, Issue 29 p. 5050-5055 Communication High-Efficiency Fluorescent Organic Light-Emitting Devices Using Sensitizing Hosts with a Small Singlet–Triplet Exchange Energy Dongdong Zhang, Dongdong Zhang Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorLian Duan, Corresponding Author Lian Duan Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaE-mail: [email protected], [email protected]Search for more papers by this authorChen Li, Chen Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorYilang Li, Yilang Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorHaoyuan Li, Haoyuan Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorDeqiang Zhang, Deqiang Zhang Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorYong Qiu, Corresponding Author Yong Qiu Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaE-mail: [email protected], [email protected]Search for more papers by this author Dongdong Zhang, Dongdong Zhang Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorLian Duan, Corresponding Author Lian Duan Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaE-mail: [email protected], [email protected]Search for more papers by this authorChen Li, Chen Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorYilang Li, Yilang Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorHaoyuan Li, Haoyuan Li Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorDeqiang Zhang, Deqiang Zhang Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaSearch for more papers by this authorYong Qiu, Corresponding Author Yong Qiu Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084 PR ChinaE-mail: [email protected], [email protected]Search for more papers by this author First published: 18 June 2014 https://doi.org/10.1002/adma.201401476Citations: 456Read 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 onEmailFacebookTwitterLinkedInRedditWechat Graphical Abstract Materials with small singlet–triplet splits (ΔESTs) are introduced as sensitizing hosts to excite fluorescent dopants, breaking the trade-off between small ΔEST and high radiative decay rates. A highly efficient orange-fluorescent organic light-emitting diode (OLED) is prepared, showing a maximum external quantum efficiency of 12.2%. Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. 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Citing Literature Volume26, Issue29August 6, 2014Pages 5050-5055 ReferencesRelatedInformation