DOI: 10.1063/1.2197318. White light from polymer light-emitting diodes: Utilization of fluorenone defects and exciplex

White light from polymer light-emitting diodes: Utilization of fluorenone defects and exciplex

10.1063/1.2197318

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

A white light polymer light-emitting diode was demonstrated with a double layer configuration: poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] (poly-TPD) blended with poly(N-vinylcarbazole) as both hole-transporting layer and electron-blocking layer, blue-emissive poly(9,9-dihexylfluorene-alt-co-2,5-dioctyloxy-para-phenylene) (PDHFDOOP) blended with green-emissive poly[6,6′-bi-(9,9′-dihexylfluorene)-co-(9,9′-dihexylfluorene-3-thiophene-5′-yl)] as an emissive layer. By annealing the emissive layer at a relatively high temperature, fluorenone defects were generated into PDHFDOOP, which formed an exciplex with poly-TPD, as a red emitter. The devices exhibit a maximum brightness of ∼4800cd∕m2 and a maximum luminous efficiency of ∼3cd∕A. Moreover, the Commission Internationale de L’Eclairage coordinates of the emitted light is close to that of pure white light and is insensitive to the applied voltages.

Bibliography

Sun, Q. J., Fan, B. H., Tan, Z. A., Yang, C. H., Li, Y. F., & Yang, Y. (2006). White light from polymer light-emitting diodes: Utilization of fluorenone defects and exciplex. Applied Physics Letters, 88(16).

Authors 6

Q. J. Sun (first)
B. H. Fan (additional)
Z. A. Tan (additional)
C. H. Yang (additional)
Y. F. Li (additional)
Y. Yang (additional)

References 19 Referenced 68

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Dates

Type	When
Created	19 years, 4 months ago (April 18, 2006, 6:16 p.m.)
Deposited	2 years, 2 months ago (June 25, 2023, 1:35 p.m.)
Indexed	1 month ago (July 30, 2025, 6:47 a.m.)
Issued	19 years, 4 months ago (April 17, 2006)
Published	19 years, 4 months ago (April 17, 2006)
Published Online	19 years, 4 months ago (April 19, 2006)
Published Print	19 years, 4 months ago (April 17, 2006)

Funders 0

None

BibTeX

@article{Sun_2006, title={White light from polymer light-emitting diodes: Utilization of fluorenone defects and exciplex}, volume={88}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2197318}, DOI={10.1063/1.2197318}, number={16}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Sun, Q. J. and Fan, B. H. and Tan, Z. A. and Yang, C. H. and Li, Y. F. and Yang, Y.}, year={2006}, month=apr }

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