TY - JOUR
T1 - cis-Quinacridone-Based Delayed Fluorescence Emitters
T2 - Seemingly Old but Renewed Functional Luminogens
AU - Min, Hyukgi
AU - Park, In Seob
AU - Yasuda, Takuma
N1 - Funding Information:
This work was supported in part by Grant‐in‐Aid for JSPS KAKENHI Grant No. JP18H02048 (T.Y.) and JP19K15651 (I.S.P.), Hoso Bunka Foundation (T.Y.), Research Foundation for the Electrotechnology of Chubu (T.Y.), Murata Science Foundation (T.Y.), Iwatani Naoji Foundation (T.Y.), and Hirose Foundation (I.S.P.). H.M. acknowledges financial support from the JASSO Honors Scholarship and Kohnan Asia Scholarship. The authors are grateful for Dr. Yoshihisa Sei and Dr. Taisuke Matsumoto for their support in the X‐ray crystallographic analyses, and also for the support provided by the Cooperative Research Program “Network Joint Research Center for Materials and Devices” and the computer facilities at the Research Institute for Information Technology, Kyushu University.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/3/29
Y1 - 2021/3/29
N2 - Herein, we report a material design of linear cis-quinacridone (cis-QA) derivatives as delayed fluorescence luminogens. In contrast to the widely studied traditional trans-isomers, the functionality of cis-QA and its derivatives remains unexplored and unclarified. Through combined computational and experimental investigations, we revealed that cis-QA derivatives can function as fascinating narrowband deep-blue delayed fluorescence emitters for organic light-emitting diodes (OLEDs). The best-performing deep-blue OLEDs incorporating these cis-QA luminogens achieved high external electroluminescence quantum efficiencies of up to 19.0 % and high color purity with chromaticity coordinates of (0.13, 0.14).
AB - Herein, we report a material design of linear cis-quinacridone (cis-QA) derivatives as delayed fluorescence luminogens. In contrast to the widely studied traditional trans-isomers, the functionality of cis-QA and its derivatives remains unexplored and unclarified. Through combined computational and experimental investigations, we revealed that cis-QA derivatives can function as fascinating narrowband deep-blue delayed fluorescence emitters for organic light-emitting diodes (OLEDs). The best-performing deep-blue OLEDs incorporating these cis-QA luminogens achieved high external electroluminescence quantum efficiencies of up to 19.0 % and high color purity with chromaticity coordinates of (0.13, 0.14).
UR - http://www.scopus.com/inward/record.url?scp=85101590945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85101590945&partnerID=8YFLogxK
U2 - 10.1002/anie.202016914
DO - 10.1002/anie.202016914
M3 - Article
C2 - 33511749
AN - SCOPUS:85101590945
VL - 60
SP - 7643
EP - 7648
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 14
ER -