TiO2박막 기반페로브스카이트 및 염료감응형태양전지의특성 연구
- Alternative Title
- A study on the characteristics of perovskite and dye-sensitized solar cells fabricated based on TiO2 thin films
- Abstract
- DSSC is a solar cell that mimics plants that obtain energy through photosynthesis. It is a technology that absorbs light as if a plant is photosynthesizing and generating electricity by adsorbing dye molecules to TiO2, a nano-sized porous semiconductor oxide, between thin glass films to absorb sunlight well.
Perovskite solar cells (PSCs) have recently emerged as so called “third generation solar cells” which have been universally promoted as an economically and environmentally viable renewable technology option to traditional solar cells technologies for addressing global challenges in energy generation, security and environmental impact.
In this study, synthesis, modification and post-treatment of TiO2 were performed to form a TiO2 thin film used in the two solar cells. In addition, the change in the binder included in the preparation of the TiO2 thin film forming paste, and the external processing process after maximizing the TiO2 thin film was maximized and applied to the solar cell to confirm the results. The experiment was conducted with two types of solar cells, DSSC and PSC, and each result is as follows.
TTIP was added to the TiO2 paste at a ratio of 0.5 mol to improve the connectivity between TiO2 particles in the DSSC and improve the transfer of electrons to the FTO substrate, showing the highest efficiency of 4.148 %.
DSSC with 60 % TiO2 nanowires showed the highest efficiency of 5.54 %. When the light scattering layer was added at the same TiO2 addition amount, a high result of 6.27 %.
In perovskite solar cell, TiCl4 treatment of TiO2 photo electrode improved the main parameters such as open voltage, short-circuit current density, and fill factor. Accordingly, 15.7 1% efficiency was achieved at a TiCl4 concentration of 100 mM by increasing JSC and reducing electronic recombination. And Electrodes were prepared with TiO2 nano particles using TiO2 nanotubes manufactured under optimal conditions. The highest efficiency of 15.451 % at 15 wt% was measured.
- Issued Date
- 2020
- Awarded Date
- 2020. 8
- Type
- Dissertation
- Publisher
- 부경대학교
- Affiliation
- 부경대학교 대학원
- Department
- 대학원 전기공학과
- Advisor
- 권성열
- Table Of Contents
- Chapter 1. Introduction 1
1.1 Theoretical Background 1
1.1.1 Solar cells 1
1.2.2 Solar cells measurement 4
1.2.3 Operating principle of solar cells 7
1.2 Dye-sensitized solar cell 14
1.2.1 Introduction of DSSC 14
1.2.2 Composition of DSSC 17
1.2.3 Operating principles of DSSC 22
1.3 Perovskite solar cell 26
1.3.1 Introduction of Perovskite solar cell 26
1.3.2 Composition of Perovskite solar cell 29
1.3.3 Operating principles of Perovskite solar cell 42
1.4 Reference 46
Chapter 2. Formation of low temperature annealing TiO2 thin film with TTIP 51
2.1 Objective of this works 51
2.2 Experiment Section 53
2.2.1 TiO2 paste with TTIP 53
2.2.2 DSSC using low temperature annealing paste 54
2.3 Measurements and Results 56
2.4 Conclusion 64
2.5 Reference 66
Chapter 3. DSSC by using TiO2 nanocomposites 68
3.1 Objective of this works 68
3.2 Experiment Section 72
3.2.1 TiO2 powder and nanowire 72
3.2.2 Photo electrode using TiO2 nanocomposite 75
3.3 Measurements and Results 76
3.4 Conclusion 83
3.5 Reference 85
Chapter 4. Perovskite solar cell with TiCl4 treated TiO2 layer 86
4.1 Objective of this works 86
4.2 Experiment Section 89
4.2.1 Fabrication of TiO2 layer 89
4.2.2 Fabrication of Perovskite Solar Cells 90
4.3 Measurements and Results 92
4.4 Conclusion 96
4.5 Reference 97
Chapter 5. Perovskite solar cell with TiO2 nanotube 99
5.1 Objective of this works 99
5.2 Experiment Section 101
5.2.1 TiO2 nanotube synthesis 101
5.2.2 Fabrication of Perovskite Solar Cells 105
5.3 Measurements and Results 106
5.4 Conclusion 109
5.5 Reference 111
Chapter 6. Summary 112
- Degree
- Doctor
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