25 August 2017 Organosilicon derivatives of BTBT for monolayer organic field effect transistors
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Abstract
Synthesis of novel organosilicon derivatives of [1]benzothieno[3,2-b][1]-benzothiophene (BTBT) linked though flexible aliphatic spacers to a disiloxane anchor group is reported. They were successfully used in monolayer OFETs with the charge carrier mobilities up to 0.02 cm2 /Vs, threshold voltage close to 0 V and On/Off ratio up to 10,000. Influence of the chemical structure of the molecules synthesized on the morphology, molecular 2D ordering in the monolayers and their semiconducting properties is considered. The effect of different methods of the ultrathin semiconducting layer preparation, such as Langmuir-Blodgett, Langmuir-Schaefer, spin coating or doctor blade, on the OFET performance is discussed.
Conference Presentation
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Elena V. Agina, Marina S. Polinskaya, Askold A. Trul, Viktoria P. Chekusova, Alexey S. Sizov, Oleg V. Borshchev, Sergey A. Ponomarenko, "Organosilicon derivatives of BTBT for monolayer organic field effect transistors", Proc. SPIE 10365, Organic Field-Effect Transistors XVI, 103650O (25 August 2017); doi: 10.1117/12.2273600; https://doi.org/10.1117/12.2273600
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