Increased mobility from regioregular poly(3-hexylthiophene) field-effect transistors

被引：373

作者：

Wang, GM ^{[1
]}

Swensen, J ^{[1
]}

Moses, D ^{[1
]}

Heeger, AJ ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 10期

关键词：

D O I：

10.1063/1.1568526

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Relatively high mobilities, mu = 0.2 cm(2) V-1 s(-1) in the accumulation mode and mu = 0.17 cm(2) V-1 s(-1) in the depletion mode, are reported for regioregular poly(3-hexylthiophene) (RR-P3HT) in field-effect transistors (FETs). Significantly higher mobility is obtained from FETs in which the RR-P3HT film is applied by dip-coating to a thickness of only 20-40 Angstrom. These observations suggest that structural order of the semiconducting polymer at the interface between the semiconducting polymer and the SiO2 gate insulator is of paramount importance for achieving high carrier mobility. Heat treatment under nitrogen at 160 degreesC for 3 min increases the on/off ratio of the FET. (C) 2003 American Institute of Physics.

引用

页码：6137 / 6141

页数：5

共 10 条

[1] Soluble and processable regioregular poly(3-hexylthiophene) for thin film field-effect transistor applications with high mobility [J].

Bao, Z ;

Dodabalapur, A ;

Lovinger, AJ .

APPLIED PHYSICS LETTERS, 1996, 69 (26) :4108-4110

[2] High-performance plastic transistors fabricated by printing techniques [J].

Bao, ZN ;

Feng, Y ;

Dodabalapur, A ;

Raju, VR ;

Lovinger, AJ .

CHEMISTRY OF MATERIALS, 1997, 9 (06) :1299-&

[3] ORGANIC TRANSISTORS - 2-DIMENSIONAL TRANSPORT AND IMPROVED ELECTRICAL CHARACTERISTICS [J].

DODABALAPUR, A ;

TORSI, L ;

KATZ, HE .

SCIENCE, 1995, 268 (5208) :270-271

[4] ENHANCED ORDER AND ELECTRONIC DELOCALIZATION IN CONJUGATED POLYMERS ORIENTED BY GEL PROCESSING IN POLYETHYLENE [J].

HAGLER, TW ;

PAKBAZ, K ;

VOSS, KF ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1991, 44 (16) :8652-8666

[5] Mechanism of carrier generation in poly(phenylene vinylene): Transient photoconductivity and photoluminescence at high electric fields [J].

Moses, D ;

Okumoto, H ;

Lee, CH ;

Heeger, AJ ;

Ohnishi, T ;

Noguchi, T .

PHYSICAL REVIEW B, 1996, 54 (07) :4748-4754

[6] RETRACTED: Gate-induced superconductivity in a solution-processed organic polymer film (Retracted article. See vol 422 pg 92 2003) [J].

Schön, JH ;

Dodabalapur, A ;

Bao, Z ;

Kloc, C ;

Schenker, O ;

Batlogg, B .

NATURE, 2001, 410 (6825) :189-192

[7] Two-dimensional charge transport in self-organized, high-mobility conjugated polymers [J].

Sirringhaus, H ;

Brown, PJ ;

Friend, RH ;

Nielsen, MM ;

Bechgaard, K ;

Langeveld-Voss, BMW ;

Spiering, AJH ;

Janssen, RAJ ;

Meijer, EW ;

Herwig, P ;

de Leeuw, DM .

NATURE, 1999, 401 (6754) :685-688

[8] Integrated optoelectronic devices based on conjugated polymers [J].

Sirringhaus, H ;

Tessler, N ;

Friend, RH .

SCIENCE, 1998, 280 (5370) :1741-1744

[9]

SZE SM, 1981, PHYSICS SEMICONDUCTO

[10] Langmuir-Blodgett films of regioregular poly(3-hexylthiophene) as field-effect transistors [J].

Xu, GF ;

Bao, ZA ;

Groves, JT .

LANGMUIR, 2000, 16 (04) :1834-1841

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