Indigo - A Natural Pigment for High Performance Ambipolar Organic Field Effect Transistors and Circuits

• Published in: Advanced materials (Weinheim) Vol. 24; no. 3; pp. 375 - 380
• Main Authors: Irimia-Vladu, Mihai, Głowacki, Eric D., Troshin, Pavel A., Schwabegger, Günther, Leonat, Lucia, Susarova, Diana K., Krystal, Olga, Ullah, Mujeeb, Kanbur, Yasin, Bodea, Marius A., Razumov, Vladimir F., Sitter, Helmut, Bauer, Siegfried, Sariciftci, Niyazi Serdar
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 17-01-2012; WILEY‐VCH Verlag
• Subjects: ambipolar semiconductors; biodegradable electronics; Biological Products - chemistry; Coloring Agents - chemistry; Electrochemistry; Indigo Carmine - chemistry; natural materials; Semiconductors; sustainable electronics; Tin Compounds - chemistry; sustainable electronics; natural materials; ambipolar semiconductors; biodegradable electronics
• ISSN: 0935-9648; 1521-4095
• DOI: 10.1002/adma.201102619

Millenniums‐old natural dye indigo ‐ a “new” ambipolar organic semiconductor. Indigo shows balanced electron and hole mobilities of 1 × 10−2 cm2 V−1 s−1 and good stability against degradation in air. Inverters with gains of 105 in the first and 110 in the third quadrant are demonstrated. Fabricated entirely from natural and biodegradable compounds, these devices show the large potential of such materials for green organic electronics.