Ambipolar organic field effect transistors and inverters with the natural material Tyrian Purple
Glowacki, Eric Daniel and Leonat, Lucia and Voss, Gundula and Bodea, Marius-Aurel and Bozkurt, Zeynep and Ramil, Alberto Montaigne and Irimia-Vladu, Mihai and Bauer, Siegfried and Sarıçiftçi, Niyazi Serdar (2011) Ambipolar organic field effect transistors and inverters with the natural material Tyrian Purple. AIP Advances, 1 (4). ISSN 2158-3226
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Official URL: http://dx.doi.org/10.1063/1.3660358
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.
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