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High Mobility, Low Dispersion Hole Transport in 1,4‐Diiodobenzene
Author(s) -
Ellman B.,
Nene S.,
Semyonov A. N.,
Twieg R. J.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500358
Subject(s) - materials science , dispersion (optics) , condensed matter physics , intermolecular force , ab initio , electron mobility , electric field , field (mathematics) , chemical physics , optoelectronics , chemistry , physics , optics , molecule , quantum mechanics , organic chemistry , mathematics , pure mathematics
Single crystals of 1,4‐diiodobenzene support almost dispersionless hole transport with mobilities ∼ 13 cm 2 V –1 s –1 near room temperature. The mobility slowly increases with decreasing T and has little dependence on electric field. A simple model of hole transport represents the data well. Ab initio calculations (see figure) indicate that the large iodine constituents may play an important role in intermolecular hole transport.