Dissertation > Excellent graduate degree dissertation topics show

Low-voltage Antimony Doped SnO2Nanowire Transparent Field Effect Transistors

Author: XuanRuiJie
Tutor: TangQingZuo
School: Hunan University
Course: Electronic Science and Technology
Keywords: low operating voltage SnO2nanowire microporous SiO2 chitosan transparent electronics
CLC: TN386
Type: Master's thesis
Year: 2013
Downloads: 22
Quote: 0
Read: Download Dissertation

Abstract


In recent years, the lightly antimony（Sb）-doped SnO2nanowire field effecttransistor has attracted extensive research interest due to its high field effectmobility、low temperature process and low cost. However, in most of the papersreported, the operation voltage of antimony（Sb）-doped SnO2nanowire field effecttransistor was too high（>10V），which causes more energy consumption of device. Sohow to reduce the operation voltage, improve the field effect mobility of the device,and enhance the gate electrostatic modulation ability have become the focus of thethis paper. The research of this paper mainly has two aspects:（1） the study of itspreparation and property of antimony doped SnO2nanowire transparent transistorsgated by microporous SiO2-based proton conductors.（2） the study of its preparationand property of antimony doped SnO2nanowire transparent transistors gated bychitosan-based proton conductors.This paper is divided into four parts: the first part summarizes the propertiesand preparation method of Nano-materials，the properties and application of tinoxide. The second part introduces the basic theoretical knowledge of transistors,including its development history, operating principle, performance parameters, andalso introduces the selection of transistor preparation material, as well as thepreparation process of our laboratory.antimony doped SnO2nanowire transparent transistors gated by microporousSiO2with bottom gate top contact are prepared in our laboratory, the gate dielectrichas a relatively large specific capacitance value of2.14μF/cm2.The transparent FETshows excellent electric characteristics with a field-effect mobility of54.43cm2/Vs,current on/off ration of2104, and subthreshold gate voltage swingS=dVg/d（logIDS）=140mV/decade，the threshold voltage Vthof0.1V，and operationvoltage of0.5V.At the same time, microporous SiO2is immersed in phosphoric acidwith a concentration of10%, and test the effect of gate dielectric with treatment ofphosphoric acid on the performance of device. The transparent FET gated bymicroporous SiO2treated with phosphoric acid shows excellent electriccharacteristics with a field-effect mobility of149cm2/Vs, current on/off ration of1.3104, subthreshold gate voltage swing S=dVg/d（logIDS）=120mV/decade，threshold voltage Vthof-0.05V，and operation voltage of0.4V. 2%（atomic ratio）antimony doped SnO2nanowire transparent transistors gatedby chitosan with bottom gate top contact are prepared in our laboratory, the gatedielectric has a relatively large specific capacitance value of4.2μF/cm2.The deviceshows excellent electrical properties with a saturation field-effect mobility of224cm2/Vs,current on/off ration of1.04105, subthreshold gate voltage swingS=dVg/d（logIDS）=150mV/decade，and threshold voltage Vthof-0.3V.1%antimonydoped SnO2nanowire FETs and0.5%antimony doped SnO2nanowire FETs werealso prepared in our lab, the effect of SnO2nanowires with different Sb dopingLevels on device performance was discussed.The transparent1%antimony dopedSnO2nanowire FETs gated by microporous SiO2show excellent electriccharacteristics with a field-effect mobility of241cm2/Vs, current on/off ration of0.9105, subthreshold gate voltage swing S=dVGS/d（logIDS）=75mV/decade， andthreshold voltage Vthof0.1V. The transparent0.5%antimony doped SnO2nanowireFETs gated by microporous SiO2show excellent electric characteristics with afield-effect mobility of302cm2/Vs, current on/off ration of0.94105, subthresholdgate voltage swing S=dVg/d（logIDS）=50mV/decade，and threshold voltage Vthof0.4V.In conclusion, such a low-voltage transparent transistor gated by microporousSiO2or chitosan is very promising for battery-powered portable nanoscale sensor.

Related Dissertations

  1. Studies on Chitosan and Its Derivatives Adsorption for Paralytic Shellfish Poisoning in Ostrea Rivularis Could,TS254.4
  2. Thermal Stability of Complexes of Chitosan Quaternary Ammonium Salt and Metal Ion,O634
  3. Polyethylenimine Conjugated Stearic Acid-g-chitosan Oligosaccharide Micelles for Antitumor Gene Therapy,R450
  4. Study on the Accumulation and Remove of Cadmium and Lead in Oysters,X174
  5. Study on the Synthesis and Adsorption Behaviour of Chitosan Derivative,TS254.9
  6. Improvement of Preparation Technology for Chitin and Chitosan from By-product of Litopenaeus Vannamei,TS254.9
  7. Biological Control of Meloidogyne Spp. in Cucumber (Cucumis Sativus L.) and Development of the Ecological and Environment-friendly Fertilizer with Pesticides,S436.421
  8. Preparation and Properties of Chitosan-based Thermosensitive Composite Hydrogel,R943
  9. Acid solution on the structure and properties of chitosan / hydroxyapatite composite,R318.08
  10. Study on Chitosan-Based Composiate Nano-Coating Dope and Its Effect of Fresh-Keeping for Coated Egg,TS253.2
  11. Studies on the Dissolution of Chitosan in Ionic Liquids,O636.1
  12. Bovine serum albumin and protamine from NOCC / alginate hydrogels release : the isoelectric point of two different biological molecules controlled trial,R943
  13. The Marrlid Reaction of Chitosan Oligsccarids and the Antioxidant Activity of It’s Derivatives,R285
  14. Studies on the Preparation and Effect of the Lipidic Solid Dispersion of Norcantharidin Microspheres for Transcatheter Arterial Chemoembolization,R943
  15. Preparation and Application of Biocompatible Nanocomposites,TB383.1
  16. Study on Chitosans and Oligochitosans Anti-oxidative Activity and Anti-browning Mechanism of Apple Juice,TS255.44
  17. Preparation o Chitosan Dervatives by Schiff Base and Antimicrobial Activity of the Dervatives,TQ281
  18. The Study of Deep Treating for Dyeing Wastewater by Using Combination of Chitosan and Modified Fly Ash,X791
  19. Chitosan long tow key production technology research and development,TQ340.64
  20. Biomimetic Synthesis of Calcium Carbonate Microcrystal and Research on Its Properties,TQ132.32
  21. The Preparation and Application of Functional Soy Protein,TS201.21

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Semiconductor technology > Field-effect devices
© 2012 www.DissertationTopic.Net  Mobile