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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳俊維(Chun-Wei Chen) | |
dc.contributor.author | Teng-Wei Shao | en |
dc.contributor.author | 邵騰緯 | zh_TW |
dc.date.accessioned | 2021-05-17T09:16:44Z | - |
dc.date.available | 2017-08-01 | |
dc.date.available | 2021-05-17T09:16:44Z | - |
dc.date.copyright | 2012-08-01 | |
dc.date.issued | 2012 | |
dc.date.submitted | 2012-07-31 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/6712 | - |
dc.description.abstract | 溶液-凝膠法提供一種簡單的方式去改變材料的特性,例如:溫度、pH值…等,在這個研究中我們藉由調控氧化鈦溶液的反應時間進而合成出具有不同氧鈦比之氧化鈦,其材料特性會將隨之而發生改變,氧鈦比不同時,材料的能帶會有所改變,當氧鈦比增加,則材料的導帶及價帶能階越靠近二氧化鈦,其中導帶能階從3.92eV變化至4.32eV(二氧化鈦為4.37eV),價帶能階從7.73eV變化至7.60eV(二氧化鈦價帶能階為7.58eV),藉由將之導入所作之有機太陽能電池中,不同氧鈦比之材料會對元件表現產生影響。而我們發現具有低氧鈦比的氧化鈦在元件上能有較好的表現,這是由於其導帶能階位置與電子受體的最低未占分子軌道(LUMO)形成較為適當的條件,能夠有利於電子傳輸。
另一方面,有機太陽能電池雖具有許多優點(例如:低成本、易於大面積製作等),但元件在大氣下容易使效率衰退,則為一重大缺點。然而,藉由導入氧化鈦作為水氧阻擋層,可以很明顯的看到元件大氣穩定性大幅上升,即使在大氣下長時間使用仍可保有不錯的效率。 | zh_TW |
dc.description.abstract | Sol-gel method provide an easy way to modify the characteristics of material. In this study, we synthesis titanium oxide with different O/Ti ratio by sol-gel method but not by reactive sputtering. The characteristics of titanium oxide with different O/Ti atomic ratio is quite different, The band gap change with O/Ti ratio, when increase the O/Ti ratio, the conduction and valence band level more approach to the band position of titanium dioxide. The conduction band level change from 3.92 to 4.32 eV (the conduction band level of titanium dioxide is 4.37 eV), and the valence band level change from 7.73 to 7.60 eV (the valence band level of titanium dioxide is 7.58 eV). By introducing the TiOx into the device, the titanium oxide with the lowest O/Ti ratio is the best for electron transport layer of OPV, we consider that the conduction band level of TiOx approach to the LUMO of electron acceptor, result in a good condition for electron tansport.
On the other hand, the air stability is a serious problems for the development of OPVs. The performance of device without protective layer degraded in the air dramatically. However, by introducing TiOx as a shielding layer, the device will remain high performance even storage in air for a long time. | en |
dc.description.provenance | Made available in DSpace on 2021-05-17T09:16:44Z (GMT). No. of bitstreams: 1 ntu-101-R99527064-1.pdf: 6121409 bytes, checksum: 2cb4d6f80d52c818ffca5242d268c2ca (MD5) Previous issue date: 2012 | en |
dc.description.tableofcontents | 口試委員審定書 i
Acknowledgements ii 摘要 iii ABSTRACT iv CONTENTS v LIST OF FIGURES viii LIST OF TABLES xii Chapter 1 Introduction 1 1.1 Preface 1 1.2 Introduction for PV 1 1.2.1 Inorganic solar cell 1 1.2.2 Dye-sensitized solar cell 2 1.2.3 Organic/Polymer solar cell 3 1.3 Components of OPV 8 1.3.1 Active layer 8 1.3.2 Electrode 9 1.3.3 Hole transport layer 11 1.3.4 Electron transport layer 12 1.4 Research Motivation 14 1.5 Reference 15 Chapter 2 Experimental Setup 18 2.1 Solar Spectrum 18 2.2 Typical J-V Characteristic of solar cell 20 2.3 Atomic Force Microscope 22 2.4 UV-Visible absorption spectroscopy 23 2.5 Cyclic Voltammetry 24 2.6 AC Impedance Spectroscopy 26 2.7 X-ray Photoelectron Spectroscopy 27 2.8 Reference 28 Chapter 3 Preparation and Analysis of Titanium Oxide with Different O/Ti ratio 29 3.1 Introduction of Titanium Oxide 29 3.2 Sol-Gel Method 30 3.3 Synthesis Procedures of Titanium Oxide 33 3.4 Characteristics of Crystallinity, Particle Size and Atomic Ratio 35 3.4.1 X-ray Diffractometry 35 3.5 Determine the Energy Gap and Conduction Band Level of Titanium Oxide 40 3.5.1 UV-Visible spectroscopy 40 3.5.2 Cyclic voltammetry measurement 41 3.6 Reference 45 Chapter 4 The Performance of Device with Different Titanium Oxide as Electron Transport Layer 47 4.1 Fabrication of Polymer Solar Cell with Titanium Oxide 47 4.2 Device Performance with TiOx Dispensed in Different Solvent 50 4.3 Device Performance with Different O/Ti Ratio 54 4.3.1 Device performance 54 4.3.2 The effect of band diagram 56 4.4 Air Stability of OPV with TiOx 63 4.5 Summary 71 4.6 Reference 72 Chapter 5 Conclusions 74 | |
dc.language.iso | en | |
dc.title | 不同氧鈦比之氧化鈦分析及其於太陽能電池之應用 | zh_TW |
dc.title | Analysis of different O/Ti ratio titanium oxide and its application in Organic Photovoltaics | en |
dc.type | Thesis | |
dc.date.schoolyear | 100-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 溫政彥(Cheng-Yen Wen),吳季珍(Jih-Jen Wu) | |
dc.subject.keyword | 氧化鈦,有機太陽能電池, | zh_TW |
dc.subject.keyword | titanium oxide,organic solar cell, | en |
dc.relation.page | 74 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2012-07-31 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 材料科學與工程學研究所 | zh_TW |
顯示於系所單位: | 材料科學與工程學系 |
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