Ambipolar organic field effect transistors and inverters with the natural material Tyrian Purple

作者:Glowacki Eric Daniel; Leonat Lucia; Voss Gundula; Bodea Marius Aurel; Bozkurt Zeynep; Ramil Alberto Montaigne; Irimia Vladu Mihai*; Bauer Siegfried; Sariciftci Niyazi Serdar
来源:AIP Advances, 2011, 1(4): 042132.
DOI:10.1063/1.3660358

摘要

Ambipolar organic semiconductors enable complementary-like circuits in organic electronics. Here we show promising electron and hole transport properties in the natural pigment Tyrian Purple (6,6'-dibromoindigo). X-ray diffraction of Tyrian Purple films reveals a highly-ordered structure with a single preferential orientation, attributed to intermolecular hydrogen bonding. This material, with a band gap of similar to 1.8 eV, demonstrates high hole and electron mobilities of 0.22 cm(2)/V u s and 0.03 cm(2)/V . s in transistors, respectively; and air-stable operation. Inverters with gains of 250 in the first and third quadrant show the large potential of Tyrian Purple for the development of integrated organic electronic circuits.