Phosphorescent light-emitting transistors: harvesting triplet excitons.
Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials, are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2) , a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 × 10(-2)  cm(2) V(-1) s(-1) .
Center for Polymers and Organic Solids, University of California Santa Barbara, CA 93106 (USA).
Ebinazar B
EB
Namdas
Center for Polymers and Organic Solids, University of California Santa Barbara, CA 93106 (USA).
Ben B Y
BBY
Hsu
Department of Chemistry, Chemical Research Laboratory University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK).
Zehua
Z
Liu
Centre for Organic Photonics and Electronics School of Chemistry and Molecular Biosciences The University of Queensland Chemistry Building, QLD 4072 (Australia).
Shih-Chun
SC
Lo
Centre for Organic Photonics and Electronics School of Chemistry and Molecular Biosciences The University of Queensland Chemistry Building, QLD 4072 (Australia).
Paul L
PL
Burn
Center for Polymers and Organic Solids, University of California Santa Barbara, CA 93106 (USA).|Organic Semiconductor Centre, SUPA School of Physics and Astronomy, University of St Andrews North Haugh, St Andrews, Fife, KY16 9SS (UK).
Ifor D W
IDW
Samuel
Light-emitting diodes; Organic electronics; Organic field-effect transistors; Photoluminescence