TY - JOUR
T1 - Aggregation-Induced Delayed Fluorescence Based on Donor/Acceptor-Tethered Janus Carborane Triads
T2 - Unique Photophysical Properties of Nondoped OLEDs
AU - Furue, Ryuhei
AU - Nishimoto, Takuro
AU - Park, In Seob
AU - Lee, Jiyoung
AU - Yasuda, Takuma
N1 - Funding Information:
This work was partially supported by the JST ACCEL project and a Grant-in-Aid for Scientific Research (Nos. 15H01049 “3D Active-Site Science”, 25708032, and 26620168) from JSPS, the Ogasawara Foundation for the Promotion of Science and Engineering, the Kurata Memorial Hitachi Science and Technology Foundation, the Kumagai Foundation for Science and Technology, the Sumitomo Electric Group CSR Foundation, the Futaba Electronics Memorial Foundation, and the Canon Foundation.
Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2016/6/13
Y1 - 2016/6/13
N2 - Luminescent materials consisting of boron clusters, such as carboranes, have attracted immense interest in recent years. In this study, luminescent organic–inorganic conjugated systems based on o-carboranes directly bonded to electron-donating and electron-accepting π-conjugated units were elaborated as novel optoelectronic materials. These o-carborane derivatives simultaneously possessed aggregation-induced emission (AIE) and thermally activated delayed fluorescence (TADF) capabilities, and showed strong yellow-to-red emissions with high photoluminescence quantum efficiencies of up to 97 % in their aggregated states or in solid neat films. Organic light-emitting diodes utilizing these o-carborane derivatives as a nondoped emission layer exhibited maximum external electroluminescence quantum efficiencies as high as 11 %, originating from TADF.
AB - Luminescent materials consisting of boron clusters, such as carboranes, have attracted immense interest in recent years. In this study, luminescent organic–inorganic conjugated systems based on o-carboranes directly bonded to electron-donating and electron-accepting π-conjugated units were elaborated as novel optoelectronic materials. These o-carborane derivatives simultaneously possessed aggregation-induced emission (AIE) and thermally activated delayed fluorescence (TADF) capabilities, and showed strong yellow-to-red emissions with high photoluminescence quantum efficiencies of up to 97 % in their aggregated states or in solid neat films. Organic light-emitting diodes utilizing these o-carborane derivatives as a nondoped emission layer exhibited maximum external electroluminescence quantum efficiencies as high as 11 %, originating from TADF.
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U2 - 10.1002/anie.201603232
DO - 10.1002/anie.201603232
M3 - Article
AN - SCOPUS:84992307770
SN - 1433-7851
VL - 55
SP - 7171
EP - 7175
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 25
ER -