Excited state management

Forrest, Stephen R.; Slootsky, Michael; Thompson, Mark E.

Excited state management

Patent · 27 March 2018

OSTI ID:1532078

Forrest, Stephen R.; Slootsky, Michael; Thompson, Mark E.

Arrangements and techniques for providing organic emissive layers are provided, in which the emissive layer includes a first dopant having a dissociative energy level. A second dopant in the emissive layer provides a solid state sink energy level, to which doubly excited excitons and/or polarons may transition instead of to the dissociative energy level, thereby decreasing the undesirable effects of transitions to the dissociative energy level.

Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States); Univ. of Southern California, Los Angeles, CA (United States)

Sponsoring Organization:: USDOE

Assignee:: The Regents of the University of Michigan (Ann Arbor, MI); University of Southern California (Los Angeles, CA)

Patent Number(s):: 9,929,365

Application Number:: 14/724,238

OSTI ID:: 1532078

Country of Publication:: United States

Language:: English

References (12)

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Intrinsic luminance loss in phosphorescent small-molecule organic light emitting devices due to bimolecular annihilation reactions Giebink, N. C.; D’Andrade, B. W.; Weaver, M. S. Journal of Applied Physics, Vol. 103, Issue 4 https://doi.org/10.1063/1.2884530	journal	February 2008
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Efficient Organic Electrophosphorescent White-Light-Emitting Device with a Triple Doped Emissive Layer D'Andrade, B. W.; Holmes, R. J.; Forrest, S. R. Advanced Materials, Vol. 16, Issue 7 https://doi.org/10.1002/adma.200306670	journal	April 2004
Photodegradation of small-molecule organic photovoltaics Wang, Nana; Tong, Xiaoran; Burlingame, Quinn Solar Energy Materials and Solar Cells, Vol. 125 https://doi.org/10.1016/j.solmat.2014.03.005	journal	June 2014
Tenfold increase in the lifetime of blue phosphorescent organic light-emitting diodes Zhang, Yifan; Lee, Jaesang; Forrest, Stephen R. Nature Communications, Vol. 5, Article No. 5008 https://doi.org/10.1038/ncomms6008	journal	September 2014
Very high-efficiency green organic light-emitting devices based on electrophosphorescence Baldo, M. A.; Lamansky, S.; Burrows, P. E. Applied Physics Letters, Vol. 75, Issue 1, p. 4-6 https://doi.org/10.1063/1.124258	journal	July 1999
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