On the mechanism of charge transport in pentacene

被引：34
|
作者：
Laarhoven, H. A. v. [1 ]
Flipse, C. F. J. [1 ]
Koeberg, M. [2 ]
Bonn, M. [2 ]
Hendry, E. [3 ]
Orlandi, G. [4 ]
Jurchescu, O. D. [5 ]
Palstra, T. T. M. [5 ]
Troisi, A. [6 ,7 ]
机构：
[1] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands
[2] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands
[3] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England
[4] Univ Bologna, Dipartmento Chim, I-40126 Bologna, Italy
[5] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands
[6] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England
[7] Univ Warwick, Ctr Comp Sci, Coventry CV4 7AL, W Midlands, England
来源：
JOURNAL OF CHEMICAL PHYSICS | 2008年 / 129卷 / 04期
关键词：
D O I：
10.1063/1.2955462
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Terahertz transient conductivity measurements are performed on pentacene single crystals, which directly demonstrate a strong coupling of charge carriers to low frequency molecular motions with energies centered around 1.1 THz. We present evidence that the strong coupling to low frequency motions is the factor limiting the conductivity in these organic semiconductors. Our observations explain the apparent paradox of the "bandlike" temperature dependence of the conductivity beyond the validity limit of the band model. (C) 2008 American Institute of Physics.
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页数：5
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