DOI: 10.1063/1.1568146. Blue organic electrophosphorescence using exothermic host

Blue organic electrophosphorescence using exothermic host–guest energy transfer

10.1063/1.1568146

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We demonstrate efficient blue electrophosphorescence using exothermic energy transfer from a host consisting of N,N′-dicarbazolyl-3,5-benzene (mCP) to the phosphorescent iridium complex iridium(III)bis[(4,6-difluorophenyl)-pyridinato-N,C2′]picolinate (FIrpic). By examining the temperature dependence of the radiative lifetime and the photoluminescence of a film of mCP doped with FIrpic, we confirm the existence of exothermic energy transfer in contrast to the endothermic transfer characteristic of the N,N′-dicarbazolyl-4-4′-biphenyl and FIrpic system. In employing exothermic energy transfer between mCP and FIrpic, a maximum external electroluminescent quantum efficiency of (7.5±0.8)% and a luminous power efficiency of (8.9±0.9)lm/W are obtained, representing a significant increase in performance over previous endothermic blue electrophosphorescent devices.

Bibliography

Holmes, R. J., Forrest, S. R., Tung, Y.-J., Kwong, R. C., Brown, J. J., Garon, S., & Thompson, M. E. (2003). Blue organic electrophosphorescence using exothermic hostâguest energy transfer. Applied Physics Letters, 82(15), 2422â2424.

Authors 7

R. J. Holmes (first)
S. R. Forrest (additional)
Y.-J. Tung (additional)
R. C. Kwong (additional)
J. J. Brown (additional)
S. Garon (additional)
M. E. Thompson (additional)

References 12 Referenced 1,085

10.1063/1.1409582 / J. Appl. Phys. (2001)
10.1063/1.1355007 / Appl. Phys. Lett. (2001)
10.1063/1.1400076 / Appl. Phys. Lett. (2001)
{'key': '2024020400202396100_r4', 'first-page': '1171', 'volume': '25', 'year': '2002', 'journal-title': 'New J. Chem.'} / New J. Chem. (2002)
10.1021/ic0008969 / Inorg. Chem. (2001)
10.1063/1.123055 / Appl. Phys. Lett. (1999)
10.1063/1.124258 / Appl. Phys. Lett. (1999)
10.1021/cm980186p / Chem. Mater. (1998)
{'key': '2024020400202396100_r9'}
{'key': '2024020400202396100_r10'}
10.1016/S0030-4018(98)00569-0 / Opt. Commun. (1998)
10.1103/PhysRevB.62.10967 / Phys. Rev. B (2000)

Dates

Type	When
Created	22 years, 4 months ago (April 10, 2003, 6:08 p.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 7:20 p.m.)
Indexed	6 hours, 20 minutes ago (Aug. 23, 2025, 12:59 a.m.)
Issued	22 years, 4 months ago (April 14, 2003)
Published	22 years, 4 months ago (April 14, 2003)
Published Print	22 years, 4 months ago (April 14, 2003)

Funders 0

None

BibTeX

@article{Holmes_2003, title={Blue organic electrophosphorescence using exothermic host–guest energy transfer}, volume={82}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1568146}, DOI={10.1063/1.1568146}, number={15}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Holmes, R. J. and Forrest, S. R. and Tung, Y.-J. and Kwong, R. C. and Brown, J. J. and Garon, S. and Thompson, M. E.}, year={2003}, month=apr, pages={2422–2424} }

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