Dissertation > Excellent graduate degree dissertation topics show

The Application of Insulating Substrate Surface Modification in Organic Thin-film Transistors

Author: XiongXianFeng
Tutor: LvGuoQiang
School: Hefei University of Technology
Course: Optical Engineering
Keywords: organic thin-film transistors inkjet printing organic semiconductor surface modification
CLC: TN321.5
Type: Master's thesis
Year: 2014
Downloads: 4
Quote: 0
Read: Download Dissertation

Abstract


There has been increased interest in inkjet printing technique to theadvantages of low-cost preparation, non contact pattering method, and availableflexibility. Inkjet printing of organic thin film transistors is an enablingtechnology for many applications requiring low-cost electronics such asdisplays. The purpose of the study is to prepare high performance organicthin-film transistors with inkjet printed active layer films.In this thesis, we examine specifcally the correlation between the flmmorphology of a small molecule semiconductor TIPS-pentacece and surfaceproperties of the oxide substrate that can be characterized with surface energymeasurement. OTFTs with inkjet printed TIPS-pentacene as well as C10-BTBTfilms as the active layers have been prepared, and the main contents include:（1）inkjet printed TIPS-pentacene arrayed isolating dots and thin flms hadbeen deposited on modified substrate after three different kind of surfacetreatment metheds including solvent cleaning, spin-coated hexamethyldisilazane(HMDS) and UV-ozone cleaning. The correlation between the flm morphologyof TIPS-pentacene and surface properties of the substrate that could becharacterized with surface energy measurement. The result showes that themorphology of TIPS-pentacene flms have been closely related to the dispersivecomponent of surface energy.（2）Inkjet printed TIPS-pentacene arrayed isolating dots and thin flms weredeposited on PVP modified substrate and SiO2substrate, then organic thin-filmtransistors were fabricated. Compared with the TIPS-pentacene filmsinkjet-printed on the controlled SiO2substrate without PVP modification layer，the single-drop semiconductor films deposited on the PVP-modified substrateshow much reduced coffee-ring effect and therefore better film uniformity，while large-area films with rectangular pattern printed with overlappingmulti-drop shows larger grain size and the corresponding OTFTs also exhibitsenhanced field-effect mobility． （2）Thin films of C10-BTBT, a new semiconductor material, were deposited onPVP modified substrate by inkjet printing respectively with single nozzle and3-nozzle. The result showed that large-area films printed with3-nozzle obtainedbetter continuity of crystallization, and the corresponding OTFTs also exhibitedhigh field-effect mobility and environmental stability.

Related Dissertations

  1. Polyaniline / short fiber reinforced natural rubber properties,TQ330.1
  2. Surface Modification of Al-alloy for Improving Bonding Strength with Pps and the Corrosion Resistance of Al-alloy,TG174.4
  3. Modification of Poly(Vinylidene Fluoride) Via Atom Transfer Radical Polymerization,TQ325.4
  4. Study on Kevlar Fibers/bismaleimide Resin Composites,TB332
  5. The Study of Li-rich Layered Solid-Solution Cathode Materials for Lithium Ion Batteries,TM912
  6. Study on the Effects of Space Charges in Organic Optoelectronic Devices,TN36
  7. Preparation and Modification of Lithium Ion Battery LiNi0.8Co0.05O2 Cathode,TM912
  8. Al-and N-modification Over Silica Supported Phillips Chromium-Based Catalysts for Ethylene Polymerization,TQ325.12
  9. Giant Magnetoresistance Effects in LSMO/PANI/Co Spin Valve Device,O482.5
  10. Atmospheric Pressure Plasma Surface Modification of Carbom Fibers and Numerical Simulation of the Discharge,TQ342.742
  11. Research of Solution Processed Ito-free Organic Solar Cells,TM914.4
  12. Stainless steel fuel cell bipolar plate and its experimental and simulation,TM911.4
  13. Atmospheric pressure pulsed RF plasma discharge for high strength and high modulus polyethylene fiber surface modification,TQ342.61
  14. Core-shell polyacrylate emulsion and Application Performance Studies,TQ630.4
  15. Study on the Surface Modification of Polyaniline and Its Application in Anticorrosive Coating,TQ637
  16. Study on Surface Modification of Nano-zno and Its Application in Polyester Coating,TQ630.7
  17. Preparation and Properties of Sb ?? 2 O 5 Organosols,TQ135.3
  18. Synthesis and Surface Modification of Nanometer TiO2 and Their Photocatalytic Activity,O643.36
  19. Lithium-ion battery cathode material lithium titanate Preparation and Properties,TM912
  20. Study on Implant Material of Carbon/Carbon+Hydroxyapatite Coating (C/C+HA) Composites,R318.08
  21. Study on Organic Optoelectric Materials by Transient Photovoltage Technique and Magnetic Modulation Study,TM914.4

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Semiconductor technology > Semiconductor transistor ( transistor ) > Transistor: according to the process > Thin-film transistor
© 2012 www.DissertationTopic.Net  Mobile