DOI: 10.1063/1.125534. Reduction of molecular aggregation and its application to the high-performance blue perylene-doped organic electroluminescent device

Reduction of molecular aggregation and its application to the high-performance blue perylene-doped organic electroluminescent device

10.1063/1.125534

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

A nonplanar derivative of perylene, 2,5,8,11-tetra-tertbutylperylene (TBPe), was synthesized via the Friedel–Crafts alkylation reaction. Electroluminescent (EL) devices were made using TBPe or perylene as a dopant in bis(2-methyl-8-quinolinolato)(para-phenylphenolato)aluminum(III) and their EL performance was compared. Similar to the device doped with the parent perylene molecule, the device doped with TBPe also emitted strongly in the blue. As the concentration of TBPe increased from 1% to 5%, the color coordinates in CIE 1931 chromaticity of the TBPe-doped device changed only slightly from (0.168,0.273) to (0.175,0.273), whereas the perylene-doped device exhibited a much larger shift from (0.165,0.196) to (0.178,0.252). The constancy of EL color and efficiency with respect to TBPe dopant concentration is attributable to diminishing molecular aggregation in the nonplanar perylene derivative, TBPe, due to the steric hindrance of the tert-butyl groups.

Bibliography

Mi, B. X., Gao, Z. Q., Lee, C. S., Lee, S. T., Kwong, H. L., & Wong, N. B. (1999). Reduction of molecular aggregation and its application to the high-performance blue perylene-doped organic electroluminescent device. Applied Physics Letters, 75(26), 4055â4057.

Authors 6

B. X. Mi (first)
Z. Q. Gao (additional)
C. S. Lee (additional)
S. T. Lee (additional)
H. L. Kwong (additional)
N. B. Wong (additional)

References 15 Referenced 69

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10.1143/JJAP.27.L269 / Jpn. J. Appl. Phys., Part 2 (1988)
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10.1063/1.343409 / J. Appl. Phys. (1989)
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10.1021/j100678a001 / J. Phys. Chem. (1971)
10.1021/j100855a027 / J. Phys. Chem. (1968)
{'key': '2024020317273841600_r9'}
{'key': '2024020317273841600_r10', 'first-page': '1', 'volume': '125', 'year': '1997', 'journal-title': 'Macromol. Symp.'} / Macromol. Symp. (1997)
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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:36 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 12:27 p.m.)
Indexed	9 months, 1 week ago (Nov. 19, 2024, 10:41 a.m.)
Issued	25 years, 8 months ago (Dec. 27, 1999)
Published	25 years, 8 months ago (Dec. 27, 1999)
Published Print	25 years, 8 months ago (Dec. 27, 1999)

Funders 0

None

BibTeX

@article{Mi_1999, title={Reduction of molecular aggregation and its application to the high-performance blue perylene-doped organic electroluminescent device}, volume={75}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.125534}, DOI={10.1063/1.125534}, number={26}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mi, B. X. and Gao, Z. Q. and Lee, C. S. and Lee, S. T. and Kwong, H. L. and Wong, N. B.}, year={1999}, month=dec, pages={4055–4057} }

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