Enhanced electroluminescence and color purity in conjugated polymer with nano-porous morphology

Tae Ho Kim; Sang Hyuk Im; O. Ok Park

doi:10.1063/1.2138676

Enhanced electroluminescence and color purity in conjugated polymer with nano-porous morphology

Tae Ho Kim, Sang Hyuk Im, O. Ok Park

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The luminescent properties of conjugated polymers are seriously affected by concentration of the conjugated chains and the degree of polymer chain packing. We examined the effect of nanoporous morphology in the emitting layer of poly[2-methoxy-5- (2′ -ethylhexyloxy)-1,4-phenylene vinylene] to hope that it would prevent polymer chain packing so that effectively decrease interchain interaction caused by interchain species and aggregates. High luminance is obtained at relatively low current density since the annihilation of singlet excitons is decreased. Redshifted emission due to the interchain aggregates and excimers are also suppressed, so that the color purity of the devices is greatly improved.

Original language	English
Article number	221114
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	22
DOIs	https://doi.org/10.1063/1.2138676
Publication status	Published - 2005
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by the Brain Korea 21 Project of the Ministry of Education and Human Resources.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2138676

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abstract = "The luminescent properties of conjugated polymers are seriously affected by concentration of the conjugated chains and the degree of polymer chain packing. We examined the effect of nanoporous morphology in the emitting layer of poly[2-methoxy-5- (2′ -ethylhexyloxy)-1,4-phenylene vinylene] to hope that it would prevent polymer chain packing so that effectively decrease interchain interaction caused by interchain species and aggregates. High luminance is obtained at relatively low current density since the annihilation of singlet excitons is decreased. Redshifted emission due to the interchain aggregates and excimers are also suppressed, so that the color purity of the devices is greatly improved.",

author = "Kim, {Tae Ho} and Im, {Sang Hyuk} and Park, {O. Ok}",

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AU - Kim, Tae Ho

AU - Im, Sang Hyuk

AU - Park, O. Ok

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PY - 2005

Y1 - 2005

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AB - The luminescent properties of conjugated polymers are seriously affected by concentration of the conjugated chains and the degree of polymer chain packing. We examined the effect of nanoporous morphology in the emitting layer of poly[2-methoxy-5- (2′ -ethylhexyloxy)-1,4-phenylene vinylene] to hope that it would prevent polymer chain packing so that effectively decrease interchain interaction caused by interchain species and aggregates. High luminance is obtained at relatively low current density since the annihilation of singlet excitons is decreased. Redshifted emission due to the interchain aggregates and excimers are also suppressed, so that the color purity of the devices is greatly improved.

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Enhanced electroluminescence and color purity in conjugated polymer with nano-porous morphology

Abstract

Bibliographical note

ASJC Scopus subject areas

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