TITLE

Correlation of on-state conductance with referenced electrochemical potential in ion gel gated polymer transistors

AUTHOR(S)
Xia, Yu; Cho, JeongHo; Paulsen, Bryan; Frisbie, C. Daniel; Renn, Michael J.
PUB. DATE
January 2009
SOURCE
Applied Physics Letters;1/5/2009, Vol. 94 Issue 1, p013304
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report direct measurement of the electrochemical potential at organic semiconductor/gate dielectric interfaces in printed polymer transistors employing a gel electrolyte as the gate insulator. An oxidized silver wire reference electrode was embedded into the gel electrolyte, and its potential relative to the grounded source contact was measured simultaneously with the transistor transfer characteristics. The referenced turn-on voltages of transistors based on three common polymer semiconductors [(poly-3-hexylthiophene, poly(3,3‴-didodecylquaterthiophene), and poly(9,9′-dioctylfluorene-co-bithiophene)] were found to correlate with the reported highest occupied molecular orbital levels (ionization potentials) for these materials. Further, analysis of the transfer characteristics revealed a negative differential transconductance regime at high gate-induced carrier densities (∼1015 cm-2), which we attribute to a combination of band filling and a mobility lowering effect.
ACCESSION #
36178199

 

Related Articles

  • Laser forward transfer of silver electrodes for organic thin-film transistors. Kim, H.; Auyeung, R. C. Y; Lee, S. H.; Huston, A. L.; Piqué, A. // Applied Physics A: Materials Science & Processing;Aug2009, Vol. 96 Issue 2, p441 

    Organic thin-film transistors (OTFTs) with top- and bottom-contact configurations were fabricated using silver nano-inks printed by laser forward transfer for the gate and source/drain electrodes with pentacene and poly-4-vinylphenol as the organic semiconductor and dielectric layers,...

  • Electrical/optical dual-function redox potential transistor. Shunpu Li; Wensi Wang; Ju Xu; Daping Chu; Shen, Z. John; Roy, Saibal // Scientific Reports;12/6/2013, p1 

    We demonstrate a new type of transistors, the electrical/optical "dual-function redox-potential transistors", which is solution processable and environmentally stable. This device consists of vertically staked electrodes that act as gate, emitter and collector. It can perform as a normal...

  • Polaron and ion diffusion in a poly(3-hexylthiophene) thin-film transistor gated with polymer electrolyte dielectric. Mills, T.; Kaake, L. G.; Zhu, X.-Y. // Applied Physics A: Materials Science & Processing;Apr2009, Vol. 95 Issue 1, p291 

    Electrolytes are finding applications as dielectric materials in low-voltage organic thin-film transistors (OTFT). The presence of mobile ions in these materials (polymer electrolytes or ion gels) gives rise to very high capacitance (>10 μF/cm2) and thus low transistor turn-on voltage. In...

  • General observation of n-type field-effect behaviour in organic semiconductors. Lay-Lay Chua; Zaumseil, Jana; Jui-Fen Chang; Ou, Eric C.-W.; Ho, Peter K.-H.; Sirringhaus, Henning; Friend, Richard H. // Nature;3/10/2005, Vol. 434 Issue 7030, p194 

    Organic semiconductors have been the subject of active research for over a decade now, with applications emerging in light-emitting displays and printable electronic circuits. One characteristic feature of these materials is the strong trapping of electrons but not holes: organic field-effect...

  • Low-voltage organic transistors on a polymer substrate with an aluminum foil gate fabricated by a laminating and electropolishing process. Chanwoo Yang; Kwonwoo Shin; Sang Yoon Yang; Hayoung Jeon; Danbi Choi; Dae Sung Chung; Chan Eon Park // Applied Physics Letters;10/9/2006, Vol. 89 Issue 15, p153508 

    The authors report flexible and low-voltage pentacene organic field-effect transistors (OFETs) constructed with an aluminum foil gate electrode, which was fabricated by the simple and low-cost roll-to-roll lamination process. Electropolishing the surface of laminated aluminum foil and spin...

  • High speed and high density organic electrochemical transistor arrays. Khodagholy, Dion; Gurfinkel, Moshe; Stavrinidou, Eleni; Leleux, Pierre; Herve, Thierry; Sanaur, Sébastien; Malliaras, George G. // Applied Physics Letters;10/17/2011, Vol. 99 Issue 16, p163304 

    A generic lithographic process is presented that allows the fabrication of high density organic electrochemical transistor arrays meant to interface with aqueous electrolytes. The channels of the transistors, which were 6 μm long, were made of the conducting polymer...

  • Scaling behavior and parasitic series resistance in disordered organic field-effect transistors. Meijer, E. J.; Gelinck, G. H.; van Veenendaal, E.; Huisman, B.-H.; de Leeuw, D. M.; Klapwijk, T. M. // Applied Physics Letters;6/23/2003, Vol. 82 Issue 25, p4576 

    The scaling behavior of the transfer characteristics of solution-processed disordered organic thin-film transistors with channel length is investigated. This is done for a variety of organic semiconductors in combination with gold injecting electrodes. From the channel-length dependence of the...

  • Controlled insulator-to-metal transformation in printable polymer composites with nanometal clusters. Sivaramakrishnan, Sankaran; Perq-Jon Chia; Yee-Chia Yeo; Lay-Lay Chua; Ho, Peter K.-H. // Nature Materials;Feb2007, Vol. 6 Issue 2, p149 

    Although organic semiconductors have received the most attention, the development of compatible passive elements, such as interconnects and electrodes, is also central to plastic electronics. For this, ligand-protected metal-cluster films have been shown to anneal at low temperatures below 250...

  • Air-stable n-channel single-crystal transistors with negligible threshold gate voltage. Yamagishi, M.; Tominari, Y.; Uemura, T.; Takeya, J. // Applied Physics Letters;2/2/2009, Vol. 94 Issue 5, pN.PAG 

    Single-crystal transistors of highly electron-affine organic compounds were constructed on solid dielectrics to study intrinsic constraints for the n-channel field effect in ambient atmosphere. Tetracyanoquinodimethane field-effect devices reproducibly operate with a high mobility of...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics