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Delayed fluorescence of a dinuclear copper(I) complex

Deaton, Joseph C. and Switalski, Steven C. and Kondakov, Denis Y. and Young, Ralph H. and Pawlik, Thomas D. and Giesen, David J. and Harkins, Seth B. and Miller, Alex J. and Mickenberg, Seth F. and Peters, Jonas C. (2012) Delayed fluorescence of a dinuclear copper(I) complex. Abstracts of Papers of the American Chemical Society, 243 . INOR 1057. ISSN 0065-7727. https://resolver.caltech.edu/CaltechAUTHORS:20140804-141302088

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Abstract

A highly emissive bis(phosphine)diarylamido dinuclear copper(I) complex (quantum yield = 57%) was shown to exhibit E-type delayed fluorescence by variable temp. emission spectroscopy and photoluminescence decay measurement of doped vapor-deposited films. The lowest energy singlet and triplet excited states were assigned as charge transfer states on the basis of theor. calcns. and the small obsd. S_1-T_1 energy gap. Vapor deposited OLEDs doped with the complex in the emissive layer gave a max. external quantum efficiency of 16.1%, demonstrating that triplet excitons can be harvested very efficiently through the delayed fluorescence channel. The function of the emissive dopant in OLEDs was further probed by several phys. methods, including elec. detected EPR, cyclic voltammetry, and photoluminescence in the presence of applied current. Work carried out at Eastman Kodak Company, Rochester, NY 14650, was done prior to Dec., 2009.


Item Type:Article
ORCID:
AuthorORCID
Peters, Jonas C.0000-0002-6610-4414
Additional Information:© 2012 American Chemical Society.
Record Number:CaltechAUTHORS:20140804-141302088
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140804-141302088
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47918
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Aug 2014 21:34
Last Modified:26 Nov 2019 11:15

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