Dissertation > Excellent graduate degree dissertation topics show

Electrochemical Fabrication of Nanostructured Polyaniline Film Counter Electrode for Dye-Sensitized Solar Cells

Author: TuBuXin
Tutor: ZhangJun
School: Inner Mongolia University
Course: Chemistry
Keywords: electrochemistry polyaniline counter electrode nanostructure dye-sensitised solar cells
CLC: TM914.4
Type: Master's thesis
Year: 2010
Downloads: 249
Quote: 0
Read: Download Dissertation

Abstract


Nanostructured polyaniline films with controlled thickness have been successfully grown on FTO glass substrates using the cyclic voltammetry method at room temperature. Scanning Electron Microscopy and Atomic Force Microscopy are employed to monitor the surface microstructure on polyaniline films. It is found that nanoparticles polyaniline is firstly synthesised at FTO conducting surface and then linear polyanilne is grown on accumulated nanoparticles polyaniline, at last, netlike structured polyaniline is formed.These polyaniline films are used as counter electrodes for dye-sensitized solar cells, and the photoelectric performances of them are determined. Optimised polyaniline film counter electrode achieved photoenergy-conversion efficiency of 4.95%, competitive to 5.41% of platinum counter electrode, furthermore, the short-circuit photocurrent density of dye-sensitized solar cells with polyaniline film counter electrode increased by 11.6% in comparison to platinum counter electrode. As a result, polyanilne counter electrode could substitute for conventional expensive platinum counter electrode for dye-sensitized solar cells, because of its low cost and high performance.We have constructed theoretical model of electrochemical polymerization polyaniline:polyaniline films are composed of compact layers and scattered layers, which are different in formation structure and electrochemical properties. Applying this theoretical model, we interpreted the photoelectric performances of dye-sensitized solar cells with different thickness of polyaniline film counter electrodes. Theoretical model of electrochemical polymerization polyaniline also could help to achieve high performances electrodes or electronic appliances based on other conducting polymers.

Related Dissertations

  1. The Preparation of Polyaniline-Metal Complex and the Study on Its Catalytical Property,O634
  2. Preparation and Anticorrosion Properties of Doped Polyaniline/Epoxy Coating,TQ637
  3. Preparation and Property Study of Polyaniline/Polyester Composite Conductive Fabric,TS195.6
  4. Research on Electrochemical Synthesis and Application of Conductive Polyaniline,O633.21
  5. Polyaniline / short fiber reinforced natural rubber properties,TQ330.1
  6. SnO 2 / CNTs composite Controllable Preparation and Gas Sensitivity Study,TB383.1
  7. Preparation of polyaniline nanostructures , characterization and biomedical applications,TB383.1
  8. Synthesis and Characterization of Polyaniline Micro/nano Structure and Its Composites,TB383.1
  9. Tuning Fluorescence and Catalytic Characterization of Polyaniline,O643.32
  10. Research of the Influence of La2O3 on the Formation and Performance of PANI Nanofiber Materials,TB383.1
  11. Process Investigation on the Preparation of Rare Metal Vanadium by Low Cost Method,TF841.3
  12. Study on Synthesis and Properties of Conductive Polyaniline and PANI/GO Composite Material,TB383.1
  13. Structural Control of Hierarchical Porous Carbon and Its Composites and Their Electrochemical Performance,TM53
  14. Preparation and Studies on PANI-SiO2 Hybrid Transparent Conducting Films,TB383.2
  15. Study on DNPH and SSS Modified Polyaniline-based QCM Sensors in Cultural Relics Conservation Micro-environment,TP212
  16. The Preparation of Metallic Fabrics with PD-Free Activation and Research of Its Properties,TS106
  17. Study on the Carbon Counter Electrode Used in Dye-Sensitized Solar Cell,TM914.4
  18. Preparation of LSMO/PANI(DBSA Doped)/Co/Pt Organic Spin Valve and Study on the MR Effect,O484
  19. Polyaniline and carbonaceous material / Polyaniline Composite Electrochemical Properties of,TB383.1
  20. Carbon nanotubes doped polyaniline and its application in gas sensors,TB383.1
  21. Composite Supercapacitor Electrode Materials Preparation and Properties,TM53

CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Photocell > Solar cells
© 2012 www.DissertationTopic.Net  Mobile