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.
| Language | English |
|---|---|
| Pages | 81-88 |
| Number of pages | 8 |
| Journal | Organic Electronics |
| Volume | 3 |
| Issue number | 2 |
| DOIs | |
| 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
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The morphological dependence of charge transport in a soluble luminescent conjugated polymer. / Tan, Czek Haan; Inigo, AR; Fann, Wunshain; Wei, Pei-Kuen; Perng, Gung-Yeong; Chen, Shaw-An.
In: Organic Electronics, Vol. 3, No. 2, 06.2002, p. 81-88.Research output: Contribution to journal › Article
TY - JOUR
T1 - The morphological dependence of charge transport in a soluble luminescent conjugated polymer
AU - Tan, Czek Haan
AU - Inigo, AR
AU - Fann, Wunshain
AU - Wei, Pei-Kuen
AU - Perng, Gung-Yeong
AU - Chen, Shaw-An
PY - 2002/6
Y1 - 2002/6
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
M3 - Article
VL - 3
SP - 81
EP - 88
JO - Organic Electronics
T2 - Organic Electronics
JF - Organic Electronics
SN - 1566-1199
IS - 2
ER -