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Oligothiophenes bearing polar groups for organic thin film transistors: synthesis, characterisation and preliminary gas sensing results

Authors :
Subodh Mhaisalkar
Antonio Dell'Aquila
M. C. Tanese
Cosimo Francesco Nobile
Eugenio Amendola
Gian Paolo Suranna
Luisa Torsi
Francesco Marinelli
Piero Morales
Pietro Mastrorilli
Domenico Acierno
Giuseppe Romanazzi
Source :
2nd IEEE International Workshop on Advances in Sensors and Interfaces (IWASI 2007), Bari, 2007, info:cnr-pdr/source/autori:A. DellÂ’Aquila, P. Mastrorilli, C.F. Nobile, G. Romanazzi, G.P. Suranna, L. Torsi, M.C. Tanese, F. Marinelli, D. Acierno, E. Amendola, P. Morales, S. Mhaisalkar/congresso_nome:2nd IEEE International Workshop on Advances in Sensors and Interfaces (IWASI 2007)/congresso_luogo:Bari/congresso_data:2007/anno:2007/pagina_da:/pagina_a:/intervallo_pagine
Publication Year :
2007
Publisher :
IEEE, 2007.

Abstract

The properties of a series of sexithiophenes bearing amide or ester functionalities in the alpha,omega-positions are reported. Isolation of the ester functionalities from the sexithiophene core by an ethylene spacer led to a device with moderate hole mobilities (1.2-10-2 cm2V-1s-1) and on/off ratios (103). A bottom contact device based on this sexithiophene showed a good response to a 5 ppm NO atmosphere, encouraging future studies on gas sensing OTFT based on these polar-functionalised OTFT.

Details

Database :
OpenAIRE
Journal :
2007 2nd International Workshop on Advances in Sensors and Interface
Accession number :
edsair.doi.dedup.....2ecbc933aa5e8d7cc92819d5206e8d14
Full Text :
https://doi.org/10.1109/iwasi.2007.4420039