TITLE

Influence of the contact metal on the performance of n-type carbonyl-functionalized quaterthiophene organic thin-film transistors

AUTHOR(S)
Schols, S.; Van Willigenburg, L.; Müller, R.; Bode, D.; Debucquoy, M.; De Jonge, S.; Genoe, J.; Heremans, P.; Lu, S.; Facchetti, A.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p263303
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Organic thin-film transistors using 5, 5‴-diperfluorohexylcarbonyl-2,2′:5′,2″:5″,2‴-quaterthiophene (DFHCO-4T) as the electron conducting organic semiconductor are fabricated and the performance of these transistors with different top-contact metals is investigated. Transistors with Au source-drain top contacts attain an apparent saturation mobility of 4.6 cm2/V s, whereas this parameter is 100 times lower for similar transistors with Al/LiF top contacts. We explain this lower performance by the formation of a thin interfacial layer with poor charge injection properties resulting from a redox reaction between Al and DFHCO-4T.
ACCESSION #
36054071

 

Related Articles

  • Modulating indium gallium zinc oxide transistor characteristics with discrete redox states of molecules embedded in the gate dielectric. Sarkar, Smita; Suresh, Arun; Myers, Frank B.; Muth, John F.; Misra, Veena // Applied Physics Letters;6/2/2008, Vol. 92 Issue 22, p223304 

    A hybrid inorganic-organic device has been fabricated by incorporating redox active molecules in indium gallium zinc oxide thin film transistors. These devices show a clear modulation of source-drain current characteristics, which is associated with the quantized energy states of the redox...

  • Model for the injection of charge through the contacts of organic transistors. Lara Bullejos, P.; Jiménez Tejada, J. A.; Rodríguez-Bolívar, S.; Deen, M. J.; Marinov, O. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 8, p084516 

    A compact model has been employed in organic thin film transistors (OTFTs) to study the electrical characteristics of the contacts, which are formed between the organic layer and source/drain electrodes of the OTFT. The model shows the importance of interrelating different physical phenomena:...

  • Redox Properties of Trinuclear Osmium Carbonylhydride Clusters with Unsaturated Ligands. Burmakina, G. V.; Ioganson, A. A.; Antonova, A. B.; Pavlenko, N. I.; Rubailo, A. I. // Russian Journal of General Chemistry;Jun2004, Vol. 74 Issue 6, p811 

    Schemes of redox transformations were proposed for osmium carbonylhydride clusters: trinuclear (�-H)Os3(�-CR=CHR')(CO)10 (R = R' = H, Ph; R = H, R' = Ph), (�-H)2Os3(�3-L)(CO)9 (L = C=CHPh, CH=CPh), tetranuclear CpMnOs3 (�-CH=CHPh)(�-H)(�-CO)(CO) 11, and...

  • WO3/metal thin-film bilayered structures as optical recording materials. Takeda, Yasuhiko; Kato, Naohiko; Fukano, Tatsuo; Takeichi, Akihiro; Motohiro, Tomoyoshi; Kawai, Shoichi // Journal of Applied Physics;9/1/2004, Vol. 96 Issue 5, p2417 

    Interface reactions in WO3/metal thin-film bilayered structures were examined for applications to optical recording materials. Decreases in the reflectance of the structures caused by temperature elevation were observed and were attributed to (i) coloration of the WO3 layers, and (ii) decreases...

  • Effects of reducing and oxidizing thermal treatments on the transport critical current density in epitaxial Bi2Sr3-xCaxCu2O8+y films. Balestrino, G.; Marinelli, M.; Milani, E.; Paoletti, A.; Paroli, P. // Journal of Applied Physics;4/15/1993, Vol. 73 Issue 8, p3903 

    Studies the effects of oxidizing and reducing thermal treatments on the critical current density in epitaxial Bi[sub2]Sr[sub3]-[subx]Ca[subx]Cu&sub2;O[sub8+y] films. Behavior of resistivity versus temperature for the films after various thermal treatments; Key feature of the film; Effectiveness...

  • Reduction of native oxides on InAs by atomic layer deposited Al2O3 and HfO2. Timm, R.; Fian, A.; Hjort, M.; Thelander, C.; Lind, E.; Andersen, J. N.; Wernersson, L.-E.; Mikkelsen, A. // Applied Physics Letters;9/27/2010, Vol. 97 Issue 13, p132904 

    Thin high-κ oxide films on InAs, formed by atomic layer deposition, are the key to achieve high-speed metal-oxide-semiconductor devices. We have studied the native oxide and the interface between InAs and 2 nm thick Al2O3 or HfO2 layers using synchrotron x-ray photoemission spectroscopy. Both...

  • Influence of iron additives on the corrosion resistance of AlGdNi amorphous metal alloy. Boichyshyn, L.; Kubishtal', Yu.; Budn'ok, A.; Kovbuz, M. // Materials Science;May2011, Vol. 46 Issue 5, p599 

    Based on the results of voltammetric investigations, we have shown that the partial replacement of nickel by 4 at. % Fe in AlGdNi amorphous alloy leads to a decrease in the corrosion currents and an increase in the polarization resistance, which demonstrates the higher corrosion resistance of...

  • Atomic scale observation and characterization of redox-induced interfacial layers in commercial Si thin film photovoltaics. Ramasse, Quentin; Anapolsky, Abraham; Lazik, Christopher; Jin, Miao; Armstrong, Karl; Wang, Dapeng // Journal of Applied Physics;Feb2009, Vol. 105 Issue 3, pN.PAG 

    Thermodynamics considerations and experimental evidence suggest that redox reactions occur at the interfaces between transparent conductive oxides (TCOs) and the active silicon layers in photovoltaic stacks, with potentially nefarious effects to device efficiency. The presence of interfacial...

  • Interfacial reactions of Ni-Ta thin films on GaAs. Lahav, A.; Eizenberg, M. // Applied Physics Letters;1984, Vol. 45 Issue 3, p256 

    The interfacial reactions between Ta-Ni thin films and (100) GaAs substrate have been analyzed by Auger electron spectroscopy, x-ray diffraction, and transmission electron microscopy. A pure Ni film reacts with GaAs at 250 °C forming a ternary Ni2 GaAs epitaxial compound, which at 600 °C...

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