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Electrical conductivity of hexacene doped with iodine
Author(s) -
Minakata Takashi,
Imai Hideaki,
Ozaki Masaru
Publication year - 1995
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1995.220060902
Subject(s) - materials science , conductivity , sublimation (psychology) , pentacene , amorphous solid , doping , electrical resistivity and conductivity , thin film , analytical chemistry (journal) , chemistry , composite material , crystallography , nanotechnology , optoelectronics , thin film transistor , organic chemistry , psychology , layer (electronics) , electrical engineering , psychotherapist , engineering
Hexacene (HEX) and derivatives such as dihydrohexacene and dihydroxyhexcane quinone were synthesized and thin films of them were prepared by the sublimation method. The structure and conductivity of the films both before and after doping with iodine were studied. The doped HEX film showed the conductivity of 3 × 10 −2 S/cm at room temperature, which was lower than expected since the conductivity of highly ordered pentacene was above 100 Ω −1 cm −1 . The reason for the low conductivity was considered to be the disorder in molecular alignment since the HEX film showed an amorphous structure. A reversible change in the conductivity of the HEX film was observed in air and in vacuum.