Regioregularity vs regiorandomness: Effect on photocarrier transport in poly(3-hexylthiophene)

被引：90

作者：

Pandey, SS ^{[1
]}

Takashima, W

Nagamatsu, S

Endo, T

Rikukawa, M

Kaneto, K

机构：

[1] Fukuoka Ind & Sci Technol Fdn, Chuo Ku, Fukuoka 8100001, Japan

[2] Kyushu Inst Technol, Dept Comp Sci & Elect, Fukuoka 8208502, Japan

[3] Sophia Univ, Dept Chem, Tokyo 1028544, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2000年 / 39卷 / 2A期

关键词：

regioregularity; photocarrier; mobility; hole; time-of-flight; poly(3-hexylthiophene);

D O I：

10.1143/JJAP.39.L94

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The time-of-night technique has been used to study transports of photocarriers in regioregular and regiorandom poly(3-hexylthiophene) (P3HT) films by fabricating indium-tin-oxide/P3HT/Al sandwich cell. It has been found that regularity in the coupling of monomers, head-to-tail (HT) has a marked effect on electrical properties and photocarrier transport in P3HT. Both regular and random P3HT films exhibit a dispersive photocurrent response with the positive sign of photocarrier (hole). The room temperature hole mobility of regioregular P3HT is estimated to be 1.21 x 10(-3) cm(2)/V.s and is one order of magnitude larger than that of the random one. The mobility in regioregular P3HT is almost independent of the applied field while that of random P3HT shows a positive field dependence at the field larger than 1.0 x 10(5) V/cm.

引用

页码：L94 / L97

页数：4

共 23 条

[1] THERMOCHROMISM AND OPTICAL ADSORPTION IN LANGMUIR-BLODGETT-FILMS OF ALKYL-SUBSTITUTED POLYTHIOPHENES
AHLSKOG, M
PALOHEIMO, J
STUBB, H
DYREKLEV, P
FAHLMAN, M
INGANAS, O
ANDERSSON, MR
[J]. JOURNAL OF APPLIED PHYSICS, 1994, 76 (02) : 893 - 899
[2] REGIOSELECTIVE POLYMERIZATION OF 3-(4-OCTYLPHENYL)THIOPHENE WITH FECL3
ANDERSSON, MR
SELSE, D
BERGGREN, M
JARVINEN, H
HJERTBERG, T
INGANAS, O
WENNERSTROM, O
OSTERHOLM, JE
[J]. MACROMOLECULES, 1994, 27 (22) : 6503 - 6506
[3] CHARGE TRANSPORT IN DISORDERED ORGANIC PHOTOCONDUCTORS - A MONTE-CARLO SIMULATION STUDY
BASSLER, H
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1993, 175 (01): : 15 - 56
[4] CHARGE TRANSPORT IN DISORDERED MOLECULAR-SOLIDS
BORSENBERGER, PM
PAUTMEIER, L
BASSLER, H
[J]. JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (08) : 5447 - 5454
[5] REGIOCONTROLLED SYNTHESIS OF POLY(3-ALKYLTHIOPHENES) MEDIATED BY RIEKE ZINC - THEIR CHARACTERIZATION AND SOLID-STATE PROPERTIES
CHEN, TA
WU, XM
RIEKE, RD
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (01) : 233 - 244
[6] VIBRATIONAL KEY BANDS AND ELECTRICAL-CONDUCTIVITY OF POLYTHIOPHENE
FURUKAWA, Y
AKIMOTO, M
HARADA, I
[J]. SYNTHETIC METALS, 1987, 18 (1-3) : 151 - 156
[7] RECTIFYING METAL/POLY(3-HEXYLTHIOPHENE) CONTACTS
GUSTAFSSON, G
INGANAS, O
SUNDBERG, M
SVENSSON, C
[J]. SYNTHETIC METALS, 1991, 41 (1-2) : 499 - 502
[8] EFFICIENT PHOTODIODES FROM INTERPENETRATING POLYMER NETWORKS
HALLS, JJM
WALSH, CA
GREENHAM, NC
MARSEGLIA, EA
FRIEND, RH
MORATTI, SC
HOLMES, AB
[J]. NATURE, 1995, 376 (6540) : 498 - 500
[9] SPECTROSCOPIC STUDIES OF SOLUBLE POLY(3-ALKYLTHIENYLENES)
HOTTA, S
RUGHOOPUTH, DDV
HEEGER, AJ
WUDL, F
[J]. MACROMOLECULES, 1987, 20 (01) : 212 - 215
[10] Photocarrier mobility in regioregular poly(3-hexylthiophene) studied by the time of flight method
Kaneto, K
Hatae, K
Nagamatsu, S
Takashima, W
Pandey, SS
Endo, K
Rikukawa, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1999, 38 (10B): : L1188 - L1190

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