The morphological dependence of charge transport in a soluble luminescent conjugated polymer

Czek Haan Tan; AR Inigo; Wunshain Fann; Pei-Kuen Wei; Gung-Yeong Perng; Shaw-An Chen

doi:10.1016/S1566-1199(02)00037-X

The morphological dependence of charge transport in a soluble luminescent conjugated polymer

Czek Haan Tan, AR Inigo, Wunshain Fann, Pei-Kuen Wei, Gung-Yeong Perng, Shaw-An Chen

Pure And Applied Chemistry

Research output: Contribution to journal › Article

37 Citations (Scopus)

Abstract

Charge transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] is studied by employing the time-of-flight technique. Film morphology plays a key role in determining the charge transport properties. Samples prepared from toluene feature non-dispersive transport. However, after thermal annealing, charge transport is no longer nondispersive and hole mobility drops for about one order of magnitude. Near-field scanning optical microscope images show that annealing enhanced film inhomogeneity. We propose that the inhomogeneity is responsible for the changes in the transport properties.

Original language	English
Pages (from-to)	81-88
Number of pages	8
Journal	Organic Electronics
Volume	3
Issue number	2
DOIs	https://doi.org/10.1016/S1566-1199(02)00037-X
Publication status	Published - Jun 2002

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Keywords

luminent conjugated polymers
Poly(p-phenylene vinylene)s
hole mobility
interchain interactions
aggregation
efficiency
performance
morphology
molecularly doped polymers
film morphology
time-of-flight
nondispersive hole transport
near-field optical microscopy
MEH-PPV
carrier mobility
light-emitting-diodes

Cite this

Tan, C. H., Inigo, AR., Fann, W., Wei, P-K., Perng, G-Y., & Chen, S-A. (2002). The morphological dependence of charge transport in a soluble luminescent conjugated polymer. Organic Electronics, 3(2), 81-88. https://doi.org/10.1016/S1566-1199(02)00037-X

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title = "The morphological dependence of charge transport in a soluble luminescent conjugated polymer",

abstract = "Charge transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] is studied by employing the time-of-flight technique. Film morphology plays a key role in determining the charge transport properties. Samples prepared from toluene feature non-dispersive transport. However, after thermal annealing, charge transport is no longer nondispersive and hole mobility drops for about one order of magnitude. Near-field scanning optical microscope images show that annealing enhanced film inhomogeneity. We propose that the inhomogeneity is responsible for the changes in the transport properties.",

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AU - Tan, Czek Haan

AU - Inigo, AR

AU - Fann, Wunshain

AU - Wei, Pei-Kuen

AU - Perng, Gung-Yeong

AU - Chen, Shaw-An

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N2 - Charge transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] is studied by employing the time-of-flight technique. Film morphology plays a key role in determining the charge transport properties. Samples prepared from toluene feature non-dispersive transport. However, after thermal annealing, charge transport is no longer nondispersive and hole mobility drops for about one order of magnitude. Near-field scanning optical microscope images show that annealing enhanced film inhomogeneity. We propose that the inhomogeneity is responsible for the changes in the transport properties.

AB - Charge transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] is studied by employing the time-of-flight technique. Film morphology plays a key role in determining the charge transport properties. Samples prepared from toluene feature non-dispersive transport. However, after thermal annealing, charge transport is no longer nondispersive and hole mobility drops for about one order of magnitude. Near-field scanning optical microscope images show that annealing enhanced film inhomogeneity. We propose that the inhomogeneity is responsible for the changes in the transport properties.

KW - luminent conjugated polymers

KW - Poly(p-phenylene vinylene)s

KW - hole mobility

KW - interchain interactions

KW - aggregation

KW - efficiency

KW - performance

KW - morphology

KW - molecularly doped polymers

KW - film morphology

KW - time-of-flight

KW - nondispersive hole transport

KW - near-field optical microscopy

KW - MEH-PPV

KW - carrier mobility

KW - light-emitting-diodes

U2 - 10.1016/S1566-1199(02)00037-X

DO - 10.1016/S1566-1199(02)00037-X

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10.1016/S1566-1199(02)00037-X