Dissertation > Excellent graduate degree dissertation topics show

Natural dye -sensitized solar cell

Author: LuoPeiHui
Tutor: NiuHaiJun
School: Heilongjiang University
Course: Polymer Chemistry and Physics
Keywords: Natural dyes Dye-sensitized solar cells Titanium dioxide Electrophoresis High voltage electric field
CLC: TM914.4
Type: Master's thesis
Year: 2010
Downloads: 257
Quote: 0
Read: Download Dissertation

Abstract


By modified sol - gel method and hydrothermal method Synthesis of titanium dioxide particles of two different sizes of these two types of titanium dioxide particles with a commercial P25 two titanium oxide mixed to prepare titanium oxide particles of a submicron size , known as the three $ coated spherical titanium dioxide (Ternary-encapsulated spherical TiO2, TES-TiO2). Preparation TES -TiO2 is deposited by cathodic electrophoretic deposition technique on Nanocrystalline mesoporous titania (Mesoporous TiO2, Meso-TiO2) coated with a fluorine-doped tin oxide conductive glass (Fluorine-doped SnO2 glass, FTO) was prepared for Dye sensitized solar cell bilayer titania electrode . Compared with double Meso-TiO2/P25 electrode , based Meso-TiO2/TES-TiO2 electrode in dye-sensitized solar cell energy conversion efficiency of 6.49% 9.3% 5.94% than Meso-TiO2/P25 electrode . The secondary crystallization prepared the double Meso-TiO2/TES-TiO2 electrode high temperature calcination , while the introduction of a high voltage electric field (High-voltage electric field, HVEF) . As a result, the efficiency of dye-sensitized solar cell is changed from 6.49% to 7.05% further increase of 8.6% . Obviously, compared with the usually applied to the dye- sensitized solar cell active layer , about 20 nanometers of titanium dioxide particles , preparation having a sub- micron size , porous TES-Ti02 not only increases the light scattering effect, while promoting the dye molecules adsorption and diffusion of the electrolyte . Furthermore , HVEF the introduction to provide the connection between the better of titanium dioxide particles , so that the electrons in the titanium dioxide more easily transferred, to avoid the recombination of the charge . First reported in this paper canna, red string and Solanum nigrum extract as dye-sensitized solar cell photosensitizers . Canna red string , Persimmon and assembled into Solanum nigrum as a sensitizer dye-sensitized solar cell energy conversion efficiency of 0.29% , 0.26% , 0.13% and 0.31% , respectively . By Fourier transform infrared spectroscopy and UV - visible absorption spectroscopy to study the molecular structure of the four natural dyes and optical absorption , electrochemical impedance spectroscopy impedance of the battery internal interface . The results show that there is a higher impedance to persimmon photosensitizer in the dye - sensitized solar cell , at the interface .

Related Dissertations

  1. Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst,O614.411
  2. Characterization and mechanism of the titanium dioxide surface envelope,TQ621.12
  3. Research on Feed Safety of Transgenic Rice in Broiler,S831.5
  4. Cellular and Proteomic Analyses of Endocytosis Mechanism Involved in Pollen-tube Growth in Nicotiana Tabacum,Q942
  5. Investigation of Preparation and Properties of Ordered Porous TiO2,TB383.2
  6. Cryopreservation and Damage Research of Sperm of Cobia (Rachycentron Canadum) and Crimson Snapper (Lutjanus Erythopterus),S961.2
  7. Proteomic Analysis of Vibrio Alginolyticus in Response to Four Types of Antibiotics,S941
  8. Isolation, Purification and Antioxidant Activity of Proteins from Chinese Yam,TS255.1
  9. Salt-Tolerance Evaluation of Brassica Napus Germplasm in the Bud and Seeding and Establishment of the Two-Dimensional Electrophoresis System,S565.4
  10. Isollation and Identification of Haemophilus Parasuis and Its Proteomic Analysis under in Vitro Growth Conditions Mimicking the in Vivo Environment,S858.28
  11. Dectection and Dissemination Mechanism of 16S rRNA Methylase Genes Among Proteus Miralis and Salmonella Isolates in Chickens,S858.31
  12. Establishment of Transgenic Soybean, Maize and Wheat Informationg Platform and Effect of Transgenic Soybean on Soil Microorganisms,S565.1
  13. Effects of Mannose-oligosaccharide on Intestinal Morphology and Bacterial Community in Gastrointestinal Tract of Broiler Chickens,S831.5
  14. Immobilized Lactobacillus Fermentation L-Lactic Acid Study and Application,TQ921.3
  15. Combination Degradation of Chlor Pyrifos Via Biodegradation and Photodegradation,X592
  16. Iron, lanthanum -doped nano TiO \u003csub\u003e 2 \u003c/ sub\u003e Preparation and photocatalytic properties,O614.411
  17. Mycobacterium smegmatis MSMEG 6 402 gene function,R378
  18. Children with acute leukemia also prototype folate carrier gene polymorphism,R733.71
  19. Diazoxide post-processing in the rat heart mitochondria comparative proteomics research,R965
  20. Four Herbicides on two kinds of toxic effects loach,S482.4
  21. Pyridine Metal Complexes electronic spectra and redox properties of theoretical research,O627

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