Narrower Bands with Better Charge Transport: The Counterintuitive Behavior of Semiconducting Copolymers

被引:29
作者
Fornari, Rocco P. [1 ,2 ]
Troisi, Alessandro [1 ,2 ]
机构
[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England
[2] Univ Warwick, Ctr Sci Comp, Coventry CV4 7AL, W Midlands, England
基金
欧洲研究理事会;
关键词
DISORDERED CONJUGATED POLYMERS; FIELD-EFFECT TRANSISTORS; ELECTRONIC-PROPERTIES; MOBILITY; MOTION; CHAIN;
D O I
10.1002/adma.201402941
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The narrower bands formed by donor-acceptor polymers are not detrimental to transport, as the reduced electronic coupling along the chain is more than compensated by a reduced activation energy for transport. These polymers are less sensitive to the conformational disorder of the chain as long as the bandwidth is larger than a threshold. (Graph Presented). © 2014 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7627 / 7631
页数:5
相关论文
共 28 条
[1]   LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].
BURROUGHES, JH ;
BRADLEY, DDC ;
BROWN, AR ;
MARKS, RN ;
MACKAY, K ;
FRIEND, RH ;
BURN, PL ;
HOLMES, AB .
NATURE, 1990, 347 (6293) :539-541
[2]   Charge Diffusion in Semiconducting Polymers: Analytical Relation between Polymer Rigidity and Time Scales for Intrachain and Interchain Hopping [J].
Carbone, Paola ;
Troisi, Alessandro .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2014, 5 (15) :2637-2641
[3]   Relative importance of polaron activation and disorder on charge transport in high-mobility conjugated polymer field-effect transistors [J].
Chang, Jui-Fen ;
Sirringhaus, Henning ;
Giles, Mark ;
Heeney, Martin ;
McCulloch, Iain .
PHYSICAL REVIEW B, 2007, 76 (20)
[4]   DISORDERED POLARON TRANSPORT - A THEORETICAL DESCRIPTION OF THE MOTION OF PHOTOINJECTED CHARGES IN MOLECULARLY DOPED POLYMERS [J].
DUNLAP, DH ;
KENKRE, VM .
CHEMICAL PHYSICS, 1993, 178 (1-3) :67-75
[6]   Theory of charge hopping along a disordered polymer chain [J].
Fornari, Rocco P. ;
Troisi, Alessandro .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (21) :9997-10007
[7]   Bandlike Motion and Mobility Saturation in Organic Molecular Semiconductors [J].
Fratini, S. ;
Ciuchi, S. .
PHYSICAL REVIEW LETTERS, 2009, 103 (26)
[8]  
Geoghegan M., 2013, Polymer Electronics
[9]   STUDIES OF POLARON MOTION .1. THE MOLECULAR-CRYSTAL MODEL [J].
HOLSTEIN, T .
ANNALS OF PHYSICS, 1959, 8 (03) :325-342
[10]   Understanding the Microscopic Origin of the Very High Charge Mobility in PBTTT: Tolerance of Thermal Disorder [J].
Liu, Tao ;
Troisi, Alessandro .
ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (07) :925-933