Correlation of charge transport with structural order in highly ordered melt-crystallized poly(3-hexylthiophene) thin films

被引：99

作者：

Singh, Chetan R. ^{[1
,2
]}

Gupta, Gaurav ^{[3
]}

Lohwasser, Ruth ^{[4
]}

Engmann, Sebastian ^{[1
,2
]}

Balko, Jens ^{[3
]}

Thelakkat, Mukundan ^{[4
]}

Thurn-Albrecht, Thomas ^{[3
]}

Hoppe, Harald ^{[1
,2
]}

机构：

[1] Ilmenau Univ Technol, Inst Phys, D-98684 Ilmenau, Germany

[2] Ilmenau Univ Technol, Inst Micro & Nanotechnol, D-98684 Ilmenau, Germany

[3] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany

[4] Univ Bayreuth, D-95440 Bayreuth, Germany

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2013年 / 51卷 / 12期

关键词：

charge transport; conjugated polymers; morphology; P3HT; structural order; structure-property relations; FIELD-EFFECT MOBILITY; MOLECULAR-WEIGHT; X-RAY; MORPHOLOGY; POLYTHIOPHENE; PERFORMANCE; TRANSISTORS; POLYDISPERSITY; DEPENDENCE;

D O I：

10.1002/polb.23297

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of well-defined poly(3-hexylthiophene)s (P3HT) of different molecular weight (MW) and high regioregularity was investigated for charge transport properties in as-cast and melt-crystallized films. The semicrystalline structure of the P3HT was characterized by X-ray scattering and Atomic force microscopy. Crystallization by cooling from the melt led to a substantial increase in crystallinity and a stronger alignment of the crystals in comparison to as-cast films. The increase in crystallinity went along with an increase in hole mobility of up to an order of magnitude as measured by the space charge limited current method. Additionally, the hole mobility depended on the long period of P3HT lamellae and consequently on the MW. In compliance with the long period, the charge carrier mobility first increased with the MW before decreasing again at the onset of chain folding. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2013, 51, 943-951

引用

页码：943 / 951

页数：9

共 41 条

[1] The effect of poly(3-hexylthiophene) molecular weight on charge transport and the performance of polymer:fullerene solar cells [J].

Ballantyne, Amy M. ;

Chen, Lichun ;

Dane, Justin ;

Hammant, Thomas ;

Braun, Felix M. ;

Heeney, Martin ;

Duffy, Warren ;

McCulloch, Iain ;

Bradley, Donal D. C. ;

Nelson, Jenny .

ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (16) :2373-2380

[2] Molecular Weight Dependence of Chain Packing and Semicrystalline Structure in Oriented Films of Regioregular Poly(3-hexylthiophene) Revealed by High-Resolution Transmission Electron Microscopy [J].

Brinkmann, Martin ;

Rannou, Patrice .

MACROMOLECULES, 2009, 42 (04) :1125-1130

[3] Enhanced mobility of poly(3-hexylthiophene) transistors by spin-coating from high-boiling-point solvents [J].

Chang, JF ;

Sun, BQ ;

Breiby, DW ;

Nielsen, MM ;

Sölling, TI ;

Giles, M ;

McCulloch, I ;

Sirringhaus, H .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4772-4776

[4] Organic thin-film transistors: A review of recent advances [J].

Dimitrakopoulos, CD ;

Mascaro, DJ .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 2001, 45 (01) :11-27

[5]

Dimitrakopoulos CD, 2002, ADV MATER, V14, P99, DOI 10.1002/1521-4095(20020116)14:2<99::AID-ADMA99>3.0.CO

[6]

2-9

[7] Optical order of the polymer phase within polymer/fullerene blend films [J].

Engmann, Sebastian ;

Turkovic, Vida ;

Denner, Paul ;

Hoppe, Harald ;

Gobsch, Gerhard .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2012, 50 (19) :1363-1373

[8] Correlation between structural and optical properties of composite polymer/fullerene films for organic solar cells [J].

Erb, T ;

Zhokhavets, U ;

Gobsch, G ;

Raleva, S ;

Stühn, B ;

Schilinsky, P ;

Waldauf, C ;

Brabec, CJ .

ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (07) :1193-1196

[9] Molecular-weight-dependent mobilities in regioregular poly(3-hexyl-thiophene) diodes -: art. no. 122110 [J].

Goh, C ;

Kline, RJ ;

McGehee, MD ;

Kadnikova, EN ;

Fréchet, JMJ .

APPLIED PHYSICS LETTERS, 2005, 86 (12) :1-3

[10] Characterization of the PEDOT-PSS system by means of X-ray and ultraviolet photoelectron spectroscopy [J].

Greczynski, G ;

Kugler, T ;

Salaneck, WR .

THIN SOLID FILMS, 1999, 354 (1-2) :129-135

← 1 2 3 4 5 →