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Proceedings Paper

Natural and nature-inspired semiconductors for organic electronics
Author(s): Eric Daniel Glowacki; Lucia Leonat; Gundula Voss; Marius Bodea; Zeynep Bozkurt; Mihai Irimia-Vladu; Siegfried Bauer; Niyazi Serdar Sariciftci
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Paper Abstract

Herein we report our recent efforts in employing natural materials and synthetic derivatives of natural molecules for organic field effect transistors (OFETs) and organic photovoltaics (OPVs). We evaluated dyes from the following chemical families: acridones, anthraquinones, carotenoids, and indigoids. These materials have proven effective in organic field effect transistors, with mobilities in the 4 × 10-4 - 0.2 cm2/V-s range, with indigoids showing promising ambipolar behavior. We fabricated complementary-like voltage inverters with high gains using indigoids. The photovoltaic properties of these materials were characterized in metal-insulator-metal (MIM) diodes, as well as in donoracceptor bilayer devices. Additionally, we have found that indigoids and Quinacridone, show long-range crystalline order due to hydrogen binding, and have considerably higher relative permittivities (ε) compared to typical organic semiconductors. Higher permittivities result in lower exciton binding energies and thus may lead to high photocurrents in photovoltaic devices.

Paper Details

Date Published: 16 September 2011
PDF: 10 pages
Proc. SPIE 8118, Organic Semiconductors in Sensors and Bioelectronics IV, 81180M (16 September 2011); doi: 10.1117/12.892467
Show Author Affiliations
Eric Daniel Glowacki, Johannes Kepler Univ. Linz (Austria)
Lucia Leonat, Politehnica Univ. of Bucharest (Romania)
Gundula Voss, Univ. of Bayreuth (Germany)
Marius Bodea, Johannes Kepler Univ. Linz (Austria)
Zeynep Bozkurt, Sabanci Univ. (Turkey)
Mihai Irimia-Vladu, Johannes Kepler Univ. Linz (Austria)
Siegfried Bauer, Johannes Kepler Univ. Linz (Austria)
Niyazi Serdar Sariciftci, Johannes Kepler Univ. Linz (Austria)

Published in SPIE Proceedings Vol. 8118:
Organic Semiconductors in Sensors and Bioelectronics IV
Ruth Shinar; Ioannis Kymissis, Editor(s)

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