Metal-Free Triplet Phosphors with High Emission Efficiency and High Tunability†
Michael Koch
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
These authors contributed equally to this work.
Search for more papers by this authorKarthikeyan Perumal
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram-600002 (India)
These authors contributed equally to this work.
Search for more papers by this authorDr. Olivier Blacque
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Search for more papers by this authorDr. Jai Anand Garg
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Search for more papers by this authorDr. Ramanathan Saiganesh
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Search for more papers by this authorDr. Senthamaraikannan Kabilan
Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram-600002 (India)
Search for more papers by this authorProf. Dr. Kallupattu Kuppusamy Balasubramanian
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Search for more papers by this authorCorresponding Author
Dr. Koushik Venkatesan
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)Search for more papers by this authorMichael Koch
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
These authors contributed equally to this work.
Search for more papers by this authorKarthikeyan Perumal
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram-600002 (India)
These authors contributed equally to this work.
Search for more papers by this authorDr. Olivier Blacque
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Search for more papers by this authorDr. Jai Anand Garg
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Search for more papers by this authorDr. Ramanathan Saiganesh
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Search for more papers by this authorDr. Senthamaraikannan Kabilan
Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram-600002 (India)
Search for more papers by this authorProf. Dr. Kallupattu Kuppusamy Balasubramanian
Shasun Research Centre, 27 Vandaloor-Kelambakkam Road, Keelakottaiyur, Chennai-600048 (India)
Search for more papers by this authorCorresponding Author
Dr. Koushik Venkatesan
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)Search for more papers by this authorThis work was supported by the Swiss National Science Foundation NRP 62 Smart Materials Program (Grant No. 406240-126142). Support from the University of Zurich, Prof. em. Dr. Heinz Berke and Prof. Dr. Roger Alberto are also gratefully acknowledged.
Graphical Abstract
By taking advantage of the singlet fission process highly efficient phosphorescent emitters based on metal- and heavy atom-free boron compounds were synthesized. The combination of a suitable molecular scaffold and appropriate electronic properties of the substituents was utilized to tailor the phosphorescence emission properties in solution, neat solid, and in doped PMMA films.
Abstract
Design of highly efficient phosphorescent emitters based on metal- and heavy atom-free boron compounds has been demonstrated by taking advantage of the singlet fission process. The combination of a suitable molecular scaffold and appropriate electronic nature of the substituents has been utilized to tailor the phosphorescence emission properties in solution, neat solid, and in doped PMMA thin films.
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