Supervisor's Foreword; Acknowledgments; Contents; Abbreviations; 1 Introduction; 1.1 Dye-Sensitized Solar Cell (DSSC); 1.1.1 Development of Solar Cells; 1.1.1.1 Classification of Solar Cells; 1.1.1.2 Development of Solar Cells; 1.1.2 Basic Principle of DSSC; 1.1.2.1 Structure of DSSC; 1.1.2.2 Principle of DSSC; 1.1.2.3 Parameter of DSSC; 1.1.3 Introduction of the Constitution of DSSC; 1.1.3.1 Nanocrystal Photoanode; 1.1.3.2 Dye; 1.1.3.3 Electrolyte; 1.1.3.4 Counter Electrode; 1.2 Photocatalysis; 1.2.1 Principle; 1.2.2 Modification of Catalyst

1.2.2.1 Suppress Recombination of Photogenerated Electrons and Holes1.2.2.2 Modification to Enhance the Visible Light Response; 1.3 Carbon Materials in Photoelectric Conversion System; 1.3.1 Donor-Acceptor Photovoltaic Material Based on Zero-Dimensional Fullerenes; 1.3.1.1 Structure of Fullerenes; 1.3.1.2 Application of Fullerenes in Photovoltaic Field; 1.3.2 Application of One-Dimensional Carbon Nanotubes in Photoelectric Conversion System; 1.3.2.1 Structure of Carbon Nanotubes; 1.3.2.2 Application of Carbon Nanotubes in the Photovoltaic Field

1.3.3 Applications of Two-Dimensional Carbon Materials in Photoelectric Conversion System1.3.3.1 Structure and Properties of Graphene; 1.3.3.2 Functionalization of Graphene; 1.3.3.3 Application of Graphene in Photoelectric Conversion System; 1.3.3.4 Applications of Graphdiyne in Photoelectric Conversion System; 1.4 Novelty and Significance of This Thesis; References; 2 Two-Dimensional Graphene Bridges Enhanced Photoinduced Charge Transport in Dye-Sensitized Solar Cells; 2.1 Introduction; 2.2 Results and Discussion; 2.2.1 The Characterization of GO and Graphene

2.2.2 Photocurrent-Voltage (I-V) Characteristics of Different Electrodes2.2.3 Incident Monochromatic Photo-to-Current Conversion Efficiency (IPCE) Performance of Different ...; 2.2.4 Electrochemical Impedance Spectra (EIS) Measurement of Different Electrodes; 2.2.5 Operational Principle of Device; 2.3 Conclusions; 2.4 Postscript; 2.5 Detailed Methods; References; 3 Bioinspired Stacking Structures for Photoelectric Conversion; 3.1 Granum-Like Stacking Structures with TiO2-Graphene Nanosheet for Improving Photoelectric Conversion; 3.1.1 Introduction; 3.1.2 Results and Discussion

3.1.2.1 Characterization of Nanosheets3.1.2.2 Fabricating and Optical Spectra of the Stacking Film; 3.1.2.3 Characterizations of the Stacking Films; 3.1.2.4 Photocurrent Response for Different Layers Stacking Films; 3.1.2.5 Operational Principle of the Device; 3.1.2.6 Electrolyte Diffusion in the Stacking Film; 3.1.3 Conclusions; 3.1.4 Detailed Methods; 3.1.4.1 Synthesis of TiO2 Nanosheet; 3.1.4.2 Fabricating the Stacking Film; 3.1.4.3 Characterization; 3.2 Stacking Nanostructures of Polyaniline with Graphene Oxide as the Dopant and Template; 3.2.1 Introduction; 3.2.2 Results and Discussion