TITLE

Controlling of the surface energy of the gate dielectric in organic field-effect transistors by polymer blend

AUTHOR(S)
Jia Gao; Asadi, Kamal; Jian Bin Xu; Jin An
PUB. DATE
March 2009
SOURCE
Applied Physics Letters;3/2/2009, Vol. 94 Issue 9, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we demonstrate that by blending insulating polymers, one can fabricate an insulating layer with controllable surface energy for organic field-effect transistors. As a model system, we used copper phthalocyanine evaporated on layers of polymethyl metacrylate blended with polystyrene with different blending ratios and measured the field-effect mobility in transistors. We show that the highest field-effect mobility is achieved for identical surface energies of the dielectric and the semiconductor. This simple technique demonstrates the viability of using the blends of insulating polymers to systematically control the surface energy of the gate dielectric toward achieving better performances.
ACCESSION #
36941042

 

Related Articles

  • Topography-guided spreading and drying of 6,13-bis(triisopropylsilylethynyl)-pentacene solution on a polymer insulator for the field-effect mobility enhancement. Keum, Chang-Min; Bae, Jin-Hyuk; Kim, Min-Hoi; Park, Hea-Lim; Payne, Marcia M.; Anthony, John E.; Lee, Sin-Doo // Applied Physics Letters;5/13/2013, Vol. 102 Issue 19, p193307 

    We report on the enhancement of the field-effect mobility of solution-processed 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-pentacene) by unidirectional topography (UT) of an inkjet-printed polymer insulator. The UT leads to anisotropic spreading and drying of the TIPS-pentacene droplet...

  • Morphological variation in a toroid generated from a single polymer chain. Takenaka, Y.; Yoshikawa, K.; Yoshikawa, Y.; Koyama, Y.; Kanbe, T. // Journal of Chemical Physics;7/1/2005, Vol. 123 Issue 1, p014902 

    A single semiflexible polymer chain folds into a toroidal object under poor solvent conditions. In this study, we examined the morphological change in such a toroidal state as a function of the cross-sectional area and stiffness of the chain together with the surface energy, which characterizes...

  • Electrical conduction in light-emitting organic polymer Schottky diodes. Rahman, Faiz; Johnson, Nigel P.; Slight, Thomas // Journal of Applied Physics;12/15/2005, Vol. 98 Issue 12, p124504 

    Schottky metal-polymer diodes, fabricated with a light-emitting polyvinylene polymer, have been studied for their electrical conduction characteristics. Radiative recombination localized at electron injection sites is seen. Device degradation at high drive voltages was observed, together with a...

  • Polymer Dielectrics and Orthogonal Solvent Effects for High-Performance Inkjet-Printed Top-Gated P-Channel Polymer Field-Effect Transistors. Kang-Jun Baeg; Dongyoon Khim; Soon-Won Jung; Jae Bon Koo; In-Kyu You; Yoon-Chae Nah; Dong-Yu Kim; Yong-Young Noh // ETRI Journal;Dec2011, Vol. 33 Issue 6, p887 

    We investigated the effects of a gate dielectric and its solvent on the characteristics of top-gated organic field-effect transistors (OFETs). Despite the rough top surface of the inkjet-printed active features, the charge transport in an OFET is still favorable, with no significant degradation...

  • Organic field effect transistors with dipole-polarized polymer gate dielectrics for control of threshold voltage. Sakai, Heisuke; Takahashi, Yoshikazu; Murata, Hideyuki // Applied Physics Letters;9/10/2007, Vol. 91 Issue 11, p113502 

    The authors demonstrate organic field effect transistors (OFETs) with a dipole-polarized polyurea for the gate dielectrics. In the dielectrics, the internal electric field induces the mobile charge carrier in the semiconductor layer to the semiconductor-dielectric interface. OFETs with...

  • Organic field effect transistors from triarylamine side-chain polymers. Hüttner, Sven; Sommer, Michael; Steiner, Ullrich; Thelakkat, Mukundan // Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p073503 

    We present a comparative study of organic field effect transistors (OFET) based on amorphous side-chain p-type polymers obtained from controlled radical polymerization. The side-chain moieties consist of different triarylamines such as triphenylamine, dimethoxytriphenylamine, and...

  • Methanol as a Suitable Solvent for Polyaniline Emeraldine Base (PANI-EB). Othman, Siti Amira; Radiman, Shahidan; Siong, Khoo Kok // AIP Conference Proceedings;7/7/2010, Vol. 1250 Issue 1, p357 

    Conducting polyaniline is unique among conducting polymers on account of its excellent optical and electronic properties. The processing of conducting polymers has attracted considerable attention owing to their possible application in molecule-based electronic devices, such as molecular...

  • High-performance GaAs metal-insulator-semiconductor field-effect transistors enabled by self-assembled nanodielectrics. Lin, H. C.; Ye, P. D.; Xuan, Y.; Lu, G.; Facchetti, A.; Marks, T. J. // Applied Physics Letters;10/2/2006, Vol. 89 Issue 14, p142101 

    High-performance GaAs metal-insulator-semiconductor field-effect-transistors (MISFETs) fabricated with very thin self-assembled organic nanodielectrics (SANDs), deposited from solution at room temperature, are demonstrated. A submicron gate-length depletion-mode n-channel GaAs MISFET with SAND...

  • Nonvolatile organic field-effect transistor memory element with a polymeric gate electret. Singh, Th. B.; Marjanović, N.; Matt, G. J.; Sariciftci, N. S.; Schwödiauer, R.; Bauer, S. // Applied Physics Letters;11/29/2004, Vol. 85 Issue 22, p5409 

    Organic field-effect transistors with a polymeric electret as gate insulator and fullerenes as a molecular semiconductor were fabricated. We observed an amplification of the drain–source current Ids on the order of 104 upon applying a gate voltage Vg. Reversing the gate voltage Vg...

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