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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 | Tsung-Hung Chu | en |
dc.contributor.author | 朱叢鴻 | zh_TW |
dc.date.accessioned | 2021-06-15T01:56:06Z | - |
dc.date.available | 2014-06-30 | |
dc.date.copyright | 2009-06-30 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-06-28 | |
dc.identifier.citation | Chapter 1
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43426 | - |
dc.description.abstract | 有機無機混掺太陽能電池在過去幾年來已積極的被研究與發展,具有製程低溫且、可彎曲、低成本、大面積、製造簡單…等優點。在本研究中我們藉著對無機材料進行表面改質及內部掺雜的方式來提升元件的能量轉換效率。本論文分為兩大部份: 第一部份將討論二氧化鈦奈米棒表面改質的技術,並且將其應用於導電高分子聚己基噻吩與二氧化鈦的混掺太陽能電池之中,第二部份則是在二氧化鈦奈米粒子之中掺入氟原子並研究其對混掺太陽能電池所產生的效應。
在表面置換的部份中,我們先以非水解的方法合成出比常見的二氧化鈦奈米棒更適合作表面處理的二氧化鈦奈米棒,接著再成功的將特定的界面活性劑吸附到其表面。根據界面活性劑的種類和添加量,我們採用一系列的實驗來對其進行定性和定量的分析。此外表面改質過的二氧化鈦和聚己基噻吩的混掺材料比未改質過的有更好的電荷分離效率以及較低的載子再結合率,最重要的是表面改質的技術使得元件效率有大幅的提升,而成為到目前為止在所發表關於聚己基噻吩與二氧化鈦混掺太陽能電池的文獻中表現最好的元件。 在雜質掺雜的部份中,由於氟原子掺雜對二氧化鈦有許多在電性上的益處,所以我們選擇氟原子來作為本研究中合適的掺雜物。我們以非水解合成法來合成出新穎的氟原子掺雜之二氧化鈦奈米粒子,並且發現其與聚己基噻吩混掺後具有較高的載子濃度、導電度、較優良的電荷分離效率、此外最重要的是在元件的表現上可以進一步的提升。 | zh_TW |
dc.description.abstract | Organic/inorganic hybrid solar sells have been energetically developed and studied in recent years. There are a number of advantages of it, such as processing with low temperature, flexible, low-cost, large area production and easy to fabricate. In this research, the improvement of power conversion efficiency will be realized by using technology of interface modification and impurity doping within the inorganic semiconductor materials. This essay has been divided into two parts: the first part is surface modification of TiO2 nanorods and its application in P3HT/TiO2 hybrid photovoltaic device, the second part is doping of TiO2 nanoparticles with fluorine atoms and its effect on P3HT/TiO2 hybrid solar cell.
For the project of surface modification, TiO2 nanorods with better surface processability than the conventional TiO2 nanorods have been synthesized by nonhydrolysis method, and the newly introduced ligands have been successfully attached to their surface. Qualification and quantification of the adsorbed ligands have been fulfilled by a variety of experiments, depending on the amount or type of the newly introduced ligands. The surface-modified TiO2/P3HT hybrid materials have better charge transfer efficiency and lower carrier recombination rate compared with the unmodified one. Most important of all, the efficiency of the as-fabricated TiO2/P3HT hybrid solar cell has been shown significant improvement after the surface modification process of TiO2 nanorods, which is by far the highest efficiency of all the reported TiO2/P3HT hybrid solar cells. For the project of impurity doping, fluorine atom has been chosen as the suitable dopant, judging by its numerous beneficial effects on the electrical properties of TiO2. The newly synthesized fluorine-doped TiO2 nanoparticles has been demonstrated by a non-hydrolytic sol-gel approach and proven to be a suitable substitute for the TiO2 nanocrystals in the P3HT/TiO2 hybrid materials owing to their higher carrier concentration, better carrier conductivity, improved charge separation efficiency, and most importantly, the better performance of the as fabricated hybrid solar cell. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T01:56:06Z (GMT). No. of bitstreams: 1 ntu-98-R96527026-1.pdf: 9626252 bytes, checksum: 833da8e62b9cd1e2dfcd892a757301bb (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 口試委員會審定書 II
誌謝 III 摘要 IV Abstract V Contents VII Figures XII Tables XIX Chapter 1 Introduction 1 1.1 The demand for solar cells 1 1.2 Conventional inorganic solar cells 2 1.3 Dye-sensitized solar cells 4 1.4 Polymer-based solar cells 6 1.5 Organic/Inorganic hybrid solar cell 7 1.6 Benefits of surface modification 8 1.7 Benefits of doping process 22 1.8 Doping-enhanced electrical conductivity for TiO2 23 1.9 Doping-reduced carrier recombination for TiO2 25 1.10 Motivation 29 1.11 Reference 29 Chapter 2 Preparation of TiO2 nanocrystals 38 2.1 Motivation 38 2.2 Shape control of TiO2 nanocrystals 39 2.2-1 Synthesis principle 39 2.2-2 Synthesis procedures of TiO2 nanorods 44 2.2-3 Synthesis procedures of TiO2 nanoparticles 46 2.3 Surface modification of TiO2 nanocrystals 48 2.3-1 Ligand removal of TiO2 nanorods 48 2.3-2 Ligand removal of TiO2 nanoparticles 49 2.3-3 Ligand exchange of TiO2 nanorods 50 2.3-4 Illustration of surface modification procedures 53 2.4 Synthesis of fluorine-doped TiO2 nanocrystals 54 2.4-1 Synthesis principle 54 2.4-2 Synthesis procedures of F-doped TiO2 nanoparticles 58 2.4-3 Synthesis procedures of undoped TiO2 nanoparticles 61 2.5 Reference 63 Chapter 3 Improved performance of P3HT/TiO2 nanorods bulk heterojunction solar cell by interface modification 66 3.1 Experimental details 66 3.1-1 X-ray diffractometry 66 3.1-2 Transmission electron microscopy 66 3.1-3 UV-Visible spectroscopy 66 3.1-4 Raman spectroscopy 67 3.1-5 Fourier transform infrared spectroscopy 67 3.1-6 Quantification for the ligand adsorption of the TiO2 nanorods: 67 3.1-6-1 Estimation by the weight difference between bare and modified TiO2 nanorods 67 3.1-6-2 Estimation by comparing the absorbance of dye-TiO2 with dye-molecules 70 3.1-7 X-ray photoelectron spectroscopy 70 3.1-8 Time-resolved photoluminescence spectroscopy of P3HT/TiO2 hybrid materials 71 3.1-9 Transient open-circuit voltage decay measurement 71 3.1-10 P3HT/TiO2 hybrid photovoltaic device 72 3.2 Results and discussions 73 3.2-1 X-ray diffractometry 73 3.2-2 Transmission electron microscopy 75 3.2-3 UV-Visible spectroscopy 78 3.2-4 Raman spectroscopy 82 3.2-5 Fourier transform infrared spectroscopy 86 3.2-6 Quantification for the ligand adsorption of the TiO2 nanorods 90 3.2-6-1 Estimation by the weight difference between bare and modified TiO2 nanorods 90 3.2-6-2 Estimation by comparing the absorbance of dye-TiO2 with dye-molecules 95 3.2-7 X-ray photoelectron spectroscopy 101 3.2-8 Time-resolved photoluminescence spectroscopy of P3HT/TiO2 hybrid materials 103 3.2-9 Transient open-circuit voltage decay measurement 107 3.2-10 P3HT/TiO2 hybrid photovoltaic device 108 3.3 Conclusions 111 3.4 Reference 112 Chapter 4 Improved performance of P3HT/TiO2 nanocrystals hybrid solar cell by fluorine-doping in TiO2 116 4.1 Experimental details 116 4.1-1 X-ray diffractometry 116 4.1-2 Transmission electron microscopy 116 4.1-3 UV-Visible spectroscopy 116 4.1-4 Photoluminescence spectroscopy 117 4.1-5 Raman spectroscopy 117 4.1-6 X-ray photoelectron spectroscopy 117 4.1-7 Conductivity measurement of TiO2 nanocrystals 118 4.1-8 CELIV measurement of P3HT/TiO2 hybrid materials 118 4.1-9 Time-resolved photoluminescence spectroscopy of P3HT/TiO2 hybrid materials 119 4.1-10 P3HT/TiO2 hybrid photovoltaic device 119 4.2 Results and discussions 121 4.2-1 X-ray diffractometry 121 4.2-2 Transmission electron microscopy 124 4.2-3 UV-Visible spectroscopy 128 4.2-4 Photoluminescence spectroscopy 130 4.2-5 Raman spectroscopy 131 4.2-6 X-ray photoelectron spectroscopy 133 4.2-7 Conductivity measurement of TiO2 nanocrystals 140 4.2-8 P3HT/TiO2 hybrid photovoltaic device 142 4.3 Conclusions 146 4.4 Reference 147 Chapter 5 Conclusion 150 Chapter 6 Recommendation 152 6.1 More effective ligand removal process 152 6.2 Surface modification of F-doped TiO2 nanoparticles 153 6.2-1 Origin 153 6.2-2 Ligand removal of Fluorine-doped TiO2 nanoparticles 153 6.2-3 Ligand exchange of Fluorine-doped TiO2 nanoparticles 156 6.3 Reference 157 Chapter 7 Supporting information 158 7.1 Experiment procedure of hydrolysis-synthesized TiO2 nanorods 158 7.2 Experiment procedure of hydrolysis-synthesized TiO2 nanoparticles 161 7.3 XPS spectra (fine line) of TiO2 nanorods modified with N3 and CuPc: 163 7.4 X-ray diffraction patterns of (O2)2(Ti7F30) and TiOF2 crystals 164 7-5 CELIV measurement of P3HT/TiO2 hybrid materials 165 7-6 Time-resolved photoluminescence spectroscopy of P3HT/TiO2 hybrid materials 168 7-7 Reference 170 | |
dc.language.iso | en | |
dc.title | 二氧化鈦奈米晶體表面改質與內部掺雜在有機無機混成太陽能電池之應用 | zh_TW |
dc.title | Interfacial nanostructuring and impurity doping of TiO2 nanocrystals on the application of organic/inorganic hybrid bulkheterojunction solar cell | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 林唯芳(Wei-Fang Su),吳季珍(Jih-Jen Wu),陳家俊(Chia-Chun Chen) | |
dc.subject.keyword | 二氧化鈦,表面,太陽能電池,高分子,雜質掺,雜,奈米, | zh_TW |
dc.subject.keyword | TiO2,surface,doping,solar cell,polymer,ligand,impurity,nano,charge transfer,charge transport,efficiency, | en |
dc.relation.page | 170 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-06-29 | |
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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