Micron-scale organic thin film transistors with conducting polymer electrodes patterned by polymer inking and stamping
نویسندگان
چکیده
We report organic thin film transistors OTFTs with conductive polymer poly 3,4-ethylenedioxythiophene /poly 4-styrenesulphonate PEDOT electrodes that are fabricated by a simple polymer inking and stamping technique. An OTFT channel length of 2 m has been achieved. This patterning technique is a purely additive process, which does not affect the functionality of the conductive polymers, and is fully compatible for patterning on a flexible substrate. Electrical characteristics of top contact TC pentacene TFTs with PEDOT electrodes is superior to those with gold electrodes due to a lower carrier injection barrier. Extracted contact resistance shows that the channel length of TC OTFTs can be further reduced to increase the drain current. © 2006 American Institute of Physics. DOI: 10.1063/1.2168669
منابع مشابه
Organic thin film transistors and polymer light-emitting diodes
To fully realize the advantages of organic flexible electronics, patterning is very important. In this paper we show that a purely additive patterning technique, termed polymer inking and stamping, can be used to pattern conductive polymer PEDOT and fabricate sub-micron channel length organic thin film transistors. In addition, we applied the technique to transfer a stack of metal/conjugated po...
متن کاملMetal Ion Implanted Compliant Electrodes in Dielectric Electroactive Polymer (EAP) Membranes
One of the key factors to obtain large displacements and high efficiency with dielectric electroactive polymer (DEAPs) actuators is to have compliant electrodes. Attempts to scale DEAPs down to the mm or micrometer range have encountered major difficulties, mostly due to the challenge of micropatterning sufficiently compliant electrodes. Simply evaporating or sputtering thin metallic films on e...
متن کاملStudy of the Characteristics of Organic Thin Film Transistors with Plasma-Polymer Gate Dielectrics
The effects of gate dielectrics material in organic thin film transistors (OTFTs) were investigated. The gate dielectrics were deposited by plasma enhanced chemical vapor deposition (PECVD) with cyclohexane and tetraethylorthosilane (TEOS) respectively used as organic and inorganic precursors. The gate dielectrics (gate insulators) were deposited as either organic plasma-polymer or organic–inor...
متن کاملParasitic resistance in bottom-contact pentacene thin-film transistors that use water- dispersible polyaniline electrodes
Introduction Organic thin-film transistors (TFT) have received considerable attention due to promises of low manufacturing costs, ease of processibility, and extendibility to flexible circuits. The feasibility of organic TFTs has largely been demonstrated with devices that use metal source and drain electrodes, such as gold and palladium. Such devices, when fabricated in the bottom-contact (BC)...
متن کاملPatterned nitroxide polymer brushes for thin-film cathodes in organic radical batteries.
Nitroxide polymer brushes were covalently patterned on flexible conducting substrates via surface-initiated atom transfer radical polymerization and microcontact printing. As a cathode of organic radical batteries, the nitroxide polymer brushes prevent the nitroxide polymer from dissolving into electrolyte solvents, which improves the cycle-life performance of batteries.
متن کامل