Dissertation > Excellent graduate degree dissertation topics show

Preparation of ZnO Nanostructure and Its Application on the Dye Sensitized Solar Cells

Author: CaiFangPing
Tutor: ZhuLiPing
School: Zhejiang University
Course: Materials Science and Engineering
Keywords: Zinc oxide Nanowire arrays Core-shell structure Dye-sensitized solar cells
CLC: TB383.1
Type: Master's thesis
Year: 2011
Downloads: 217
Quote: 0
Read: Download Dissertation

Abstract


In this paper, we prepared by thermal evaporation of ZnO nanowire arrays vertically controlled by a simple spin-coating tetrabutyl titanate hydrolysis solution annealing TiO2 shell structure was successfully grown on ZnO nanowire arrays . Using scanning electron microscopy , high-resolution transmission electron microscopy , X -ray diffraction and photoluminescence spectra of various means of testing a detailed analysis of the morphology, structure and performance of the ZnO nanostructures . The following conclusions: (1) we get a the verticality good ZnO nanowire arrays by various pretreatment methods of research and analysis as well as the growth mechanism of substrate . ( 2 ) through the regulation of the seed layer film growth process parameters , we achieved a controllable growth of ZnO nanowire arrays . We find that the orientation and the grain size of the seed layer film directly affect the vertical orientation and the diameter of the nanowires , analysis of the various process parameters change nanowires entire column morphology . Explains the role of the seed layer in the growth process . (3) the first time we realized sintering the prepared ZnO/TiO2 of by a simple spin- coating a core-shell structure , the method is simple and convenient , replicable , and can be applied in the growth of other core-shell structure of the material . ( 4 ) Coating TiO2 nanowires array the solar dye sensitized battery performance comparison made ??of pure ZnO nanowire arrays , we have made a good photoelectric conversion efficiency of ~ 3% , an increase of 50% conversion efficiency , the main reason can be interpreted as coated TiO2 , due to a certain electron concentration difference between TiO2 and ZnO , thereby forming a self - built electric potential and optimized the photoelectric conversion efficiency of the battery , to a certain extent .

Related Dissertations

  1. Multi-walled Carbon Nanotubes Au _AT_ of Pt, Au _AT_ of Pd core-shell structure of the catalyst preparation and electrochemical properties of,O643.36
  2. Fabrication and Characterization of Nano-ZnO by PLA in Liquid Solution,TB383.1
  3. Preparation and Properties of Platinum-based Catalysts for Potential Use in PEMFCs,TM911.4
  4. Novel core-shell structure of intelligent nano Synthesis and Characterization of Hydrogels,TB383.1
  5. Polyhedron iron micro and nano capsules Absorbing Materials Preparation and Properties,TB383.1
  6. Core-shell nano metal powders and micro- preparation device developed,TB383.1
  7. Absorbent sheet synthesis and modification of,TB34
  8. Based on high-sensitivity Raman scattering enhancement Au-SiO 2 Multilayer nanostructure analysis and preparation of liquid substrates,TB383.1
  9. One-dimensional Core-shell Structured Multi-walled Carbon Nanotubes/Polyaniline Nanocomposites,TB383.1
  10. Preparation and Properties Study of High Inorganic-Organic Ratio Composite Emulsion,TB33
  11. Syntheticism of Hydroxyl Acrylic Ester Emulsion Containing Phosphate Ester and Preparation of Water-dispersible Polyisocyanate,TQ630.4
  12. Carbon Au -based low temperature fuel cell anode catalyst electrochemical properties,TM911.4
  13. Investigation of the Preparation Technology of Cathodic Co@Pt/C Catalysts for Direct Methanol Fuel Cell,TM911.48
  14. Study on the Shell Aggregation of Transition Metal Oxides Using PMMA Microspheres as Template,TB383.1
  15. A Study on Synthesis and Application of Monodisperse Silica Colloidal Particles,TB383.1
  16. The microscopic structure of the core-shell particles on the fracture toughness of PA6,TQ323.6
  17. The Adhesive Preparation for External Thermal Insulation Systems Based on EPS,TQ433.43
  18. The Preparation and Properties of Rare Earth Doped Fluoride Multi-Color Luminescence Materials,TB383.1
  19. Preparation and Characterization of Metal-Oxide Semicomductor Nanomaterials,TB383.1
  20. Preparation of zinc tin oxide MOCVD and characterization of thin films,TN304.055
  21. Zinc oxide and cobalt oxide atomic layer deposition and Materials Characterization,TN405

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net  Mobile