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Updated: Jun 12, 2026
Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
Published on: November 7, 2016
High-performance single crystal organic field-effect transistors based on two dithiophene-tetrathiafulvalene (DT-TTF)
Raphael Pfattner1, Marta Mas-Torrent, Ivano Bilotti
1Institut de Ciencia de Materials de Barcelona, Bellaterra, Spain.
Abstract:
Solution prepared single crystal organic field-effect transistors (OFETs) combine low-cost with high performance due to structural ordering of molecules. However, in organic crystals polymorphism is a known phenomenon, which can have a crucial influence on charge transport. Here, the performance of solution-prepared single crystal OFETs based on two different polymorphs of dithiophene-tetrathiafulvalene, which were investigated by confocal Raman spectroscopy and X-ray diffraction, are reported. OFET devices prepared using different configurations show that both polymorphs exhibited excellent device performance, although the -phase revealed charge carrier mobility between two and ten times higher in accordance to the closer stacking of the molecules.
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