The authors show that source and drain electrodes made of the title metallic organic charge-transfer salt (tetrathiafulvalene)(tetracyanoquinodimethane) [(TTF)(TCNQ)] result in drastic reduction of contact resistance in organic thin-film transistors (TFTs). The contact resistance is estimated by the variable gate-length transfer-line method. Pentacene TFTs with the organic electrodes show smaller contact resistance and larger overall mobility by more than one order than those of bottom-contact Au transistors. The performance is comparable to that of top-contact Au transistors, indicating that (TTF)(TCNQ) is an excellent electrode material for bottom-contact transistors.
(Tetrathiafulvalene)(tetracyanoquinodimethane) as a low-contact-resistance electrode for organic transistors
Koji Shibata, Hiroshi Wada, Ken Ishikawa, Hideo Takezoe, Takehiko Mori; (Tetrathiafulvalene)(tetracyanoquinodimethane) as a low-contact-resistance electrode for organic transistors. Appl. Phys. Lett. 7 May 2007; 90 (19): 193509. https://doi.org/10.1063/1.2738379
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