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Origin of Carrier Types in Intrinsic Organic Semiconductors
Author(s) -
Kaji Toshihiko,
Entani Shiro,
Ikeda Susumu,
Saiki Koichiro
Publication year - 2008
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.200701773
Subject(s) - materials science , organic semiconductor , semiconductor , nanotechnology , optoelectronics
The factors determining carrier type in intrinsic organic semiconductors are clarified by measuring field‐effect transistor (FET) characteristics and electronic states for an identical specimen, which is transferred between the film growth/FET measurement and electron spectroscopy chambers in situ (see figure). The FET mobility is found to decrease exponentially with the precisely evaluated charge injection barrier both for electrons and holes.