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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 黃慶怡(Ching-I Huang) | |
dc.contributor.author | Hsiang-Ting Lien | en |
dc.contributor.author | 連香婷 | zh_TW |
dc.date.accessioned | 2021-06-15T16:19:12Z | - |
dc.date.available | 2018-08-20 | |
dc.date.copyright | 2015-08-20 | |
dc.date.issued | 2015 | |
dc.date.submitted | 2015-08-17 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/52578 | - |
dc.description.abstract | This thesis investigates the function of various interfaces in solar cells. These interfaces are of great importance in controlling the key processes in solar cells such as the photocurrent generation, transport and extraction of photo-excited charge carriers. The surface-induced electronic distribution, band alignment and the molecular orientation in different solar cell structures are carefully examined by several techniques. In each study, the standard device fabrication and characterization provide the information to correlate the interface properties with the device performance. These results could be helpful for the understandings of the relationship between interface properties and the device performance of the solar cell. The interfacial engineering approaches presented here could also provide implications for the design of solar cell materials and devices.
Firstly, the donor-acceptor interface is investigated by employing metal-phthalocyanine (M-Pc)/Silicon (Si) heterojunction as a model system. The lying-down configuration of PcPs (poly-Pc form) are observed, benefiting the charge transport and better contact in the hybrid based device. The strong metal-metal interaction between Pc molecules and substrate are believed to cause molecular orientation, which can facilitate the lying configuration. At the heterojunction interface also results in a relatively large open circuit voltage in a model solar cell device. Secondly, we investigate the hole transportation properties of an efficient anode interfacial layer of based on copper oxide materials. Significant band alignment and build-in voltage difference between buffer layer and active layer is observed due to the oxidation state difference of CuxO. The conduction band of evaporated- CuxO (e-CuxO) is very close to the highest occupied molecular orbital (HOMO) of donor material in polymer solar cell (eg. Poly(3-hexylthiophene-2,5-diyl), P3HT) facilitate the better charge transportation with minimal energy loss at anode/donor interface. Finally, the chemical-vapor-deposited (CVD) grown graphene modified Cu foil substrate induced orientation of pentacene so that the CVD graphene could be an effective interfacial layer to engineer the ordering of organic materials. The pentacene undergoes an obvious orientation change from a standing configuration on the PEDOT electrode to a less standing configuration on the ITO electrode and Cu foil. The surface free energy also provides a strategic way to control the orientation of organic molecules. Better transporting mobility of the lying-down pentacene on graphene modified electrode facilitate the effective charge transporting in single layer device. This is also affects active in optoelectronic devices. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T16:19:12Z (GMT). No. of bitstreams: 1 ntu-104-D98549009-1.pdf: 5345175 bytes, checksum: 094b9ab904f3cd67bc8783311854f176 (MD5) Previous issue date: 2015 | en |
dc.description.tableofcontents | ABSTRACT i
CONTENTS iii LIST OF FIGURES vii LIST OF TABLES xii Chapter 1 Preface 1 1.1 Global Crisis and Solar Cells 1 1.2 Solar Cell Basics 3 1.2.1 Principle of operation 3 1.2.2 Characterization of Solar Cell 5 1.2.3 External quantum efficiency 8 1.3 Motivation 10 1.4 Thesis Content Outline 11 1.5 Reference 13 Chapter 2 Literature Review 14 2.1 Interface Investigation in Solar Cell 14 2.2 Donor/Acceptor interface: Promoting Interfacial Charge Separation 15 2.3 Electrode/interfacial layer or active layer interface: Promoting Interfacial Charge Collection 17 2.4 Interaction between Materials and Surfaces: 19 2.5 Reference 22 Chapter 3 Silicon-based Materials for Organic and Inorganic Hybrid Solar Cell 25 3.1 Introduction and motivation 25 3.2 Materials and Device Fabrication 27 3.2.1 Materials 27 3.2.2 Phthocyanine Polymer Preparation and hybrid photovoltaic device fabrication 27 3.3 Results and Discussion 28 3.3.1 Difference in metal centers of phthalocyanine 29 3.3.2 Monomer vs. Polymer phthalocyanine 35 3.4 Conclusion 42 3.5 Reference 43 Chapter 4 Interface Engineering of Active layer and Electrode for Organic Solar Cells 46 4.1 Introduction and Motivations 46 4.2 Materials and Device Fabrication 48 4.2.1 Materials 48 4.2.2 Preparation of the inverted photovoltaic device 48 4.3 Results and Discussion 50 4.3.1 Thickness effect of HTL with different oxides 51 4.3.2 Optimized the inverted solar cell and their characterization 54 4.3.3 Lifetime study of oxide containing devices 61 4.4 Conclusion 65 4.5 Reference 66 Chapter 5 Engineering of Pentacene Orientation through Substrate Effect 69 5.1 Introduction and Motivations 69 5.2 Materials and Device Fabrication 71 5.2.1 Materials 71 5.2.2 Graphene growth 71 5.2.3 Pentacene Thin Films Growth 72 5.3 Results and Discussion 73 5.3.1 Thin film morphology and surface energy 73 5.3.2 Characterization of long-range order interaction 76 5.3.3 Characterization of short-range order interaction 80 5.3.4 Electric measurement of thin films 85 5.4 Conclusion 87 5.5 Reference 88 Chapter 6 Thesis Summary 90 Chapter 7 Experiment Detail 92 7.1 Characterization of Materials 92 7.1.1 X-ray Diffraction 92 7.1.2 Absorption Spectroscopy 94 7.1.3 Raman Spectroscopy 94 7.1.4 X-ray Absorption Spectroscopy 96 7.1.5 Fouier Transform Infrared (FTIR) 99 7.1.6 Matrix-Assisted Laser Desorption/Ionization 100 7.1.7 Contact Angle Measurement 101 7.2 Morphology 103 7.2.1 Atomic Force Microscopy 103 7.2.2 Scanning Electron Microscope 104 | |
dc.language.iso | en | |
dc.title | 太陽能電池之有機-無機異質界面探討與研究 | zh_TW |
dc.title | Interfacial Engineering of Organic and Inorganic Heterojuction for Solar Cell Application | en |
dc.type | Thesis | |
dc.date.schoolyear | 103-2 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 林麗瓊(Li-Chyong Chen),陳貴賢(Kuei-Hsien Chen),王立義(Lee-Yi Wang),陳錦明(Jin-Ming Chen) | |
dc.subject.keyword | 異質界面,太陽能電池,X光吸收光譜, | zh_TW |
dc.subject.keyword | Heterojuction Interface,Solar Cell,X-ray Absorption Spectroscopy, | en |
dc.relation.page | 104 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2015-08-17 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 高分子科學與工程學研究所 | zh_TW |
顯示於系所單位: | 高分子科學與工程學研究所 |
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