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Trichlorosilanes as Anchoring Groups for Phenylene‐Thiophene Molecular Monolayer Field Effect Transistors
Author(s) -
Parry Adam V. S.,
Lu Kexin,
Tate Daniel J.,
UrasinskaWojcik Barbara,
CarasQuintero Dolores,
Majewski Leszek A.,
Turner Michael L.
Publication year - 2014
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201401392
Subject(s) - trichlorosilane , monolayer , materials science , anchoring , phenylene , thiophene , field effect transistor , transistor , self assembled monolayer , covalent bond , silicon , photochemistry , optoelectronics , nanotechnology , organic chemistry , polymer , chemistry , electrical engineering , voltage , composite material , structural engineering , engineering
Self assembled monolayer field effect transistors (SAMFETs) are reported using a phenylene‐thiophene containing semiconducting mesogen attached through a trichlorosilane anchoring group. Monolayer films, covalently attached to silicon dioxide substrates, form in less than 10 h from solution, thanks to the accelerated reaction of the trichlorosilane anchor. Devices exhibit mobilities as high as 1.7 × 10 −2 cm 2 V −1 s −1 , currents of up to 15 μA (on/off current ratio of 10 6 ) with device yields close to unity over large areas for channel lengths up to 100 μm.
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