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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳永芳(Yang-Fang Chen) | |
dc.contributor.author | Feng-Ching Chu | en |
dc.contributor.author | 朱峯慶 | zh_TW |
dc.date.accessioned | 2021-05-20T20:13:02Z | - |
dc.date.available | 2014-07-27 | |
dc.date.available | 2021-05-20T20:13:02Z | - |
dc.date.copyright | 2009-07-27 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-07-23 | |
dc.identifier.citation | Chapter 1
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/9208 | - |
dc.description.abstract | 本文中我們首次設計研製與探測氧化鋅(ZnO)和矽奈米尖錐(Si-nanotip)異質接面的高效率光偵測二極體,首先將鍍有銀奈米顆粒當蝕刻光罩的P型矽晶圓放入反應式離子蝕刻機(reactive ion etching,RIE)中進行蝕刻,然後製備出P型矽奈米尖錐結構(p-Si-nanotips),接著利用電子束蒸鍍系統(e-beam evaporator),在P型矽奈米尖錐上沉積一層N型的氧化鋅薄膜。由我們的研究發現,氧化鋅和矽奈米尖錐異質接面的光二極體與平面的矽(Si)和氧化鋅異質接面光二極體一相比較下,氧化鋅和矽奈米尖錐異質接面的光偵測二極體有著更好的光敏感度跟光響應度。
利用氧化鋅和矽奈米尖錐異質接面來增強光敏感度和光響應度的主要機制是我們利用矽奈米尖錐結構來減少其反射率進而增加其吸收率,且一維的奈米尖錐結構的表面積比平面結構的表面積還多,所以氧化鋅和矽奈米尖錐的接觸面積會遠比氧化鋅和矽平板基板的接觸面積大很多。基於以上二個原因,所以我們增強了氧化鋅和矽光偵測二極體的敏感度和響應度。 | zh_TW |
dc.description.abstract | ZnO/Si-nanotips heterostructure is introduced as a new and efficient photodiode for the first time. P-type Si-nanotips were fabricated by reactive ion etching (RIE) with the etching mask using Ag nanoparticles, and n-type was deposited by e-beam evaporation. It is found that n-ZnO/p-Si-nanotips diode possesses a highly sensitive photoresponse when comparing with its n-ZnO/p-Si-planar counterpart.
The underlying mechanism can be attributed to the enhanced absorption due to light trapping by Si nanotips array as well as the enhanced area of p-n junction due to the inherent nature of one-dimensional nanostructures. | en |
dc.description.provenance | Made available in DSpace on 2021-05-20T20:13:02Z (GMT). No. of bitstreams: 1 ntu-98-R96222034-1.pdf: 4689985 bytes, checksum: 6b53c01db0c3f145b7b398766778e3c6 (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 口試委員會審定書 I
誌謝 II 摘要 III Abstract IV Contents V List of Figures VII List of Tables XII 1. Introduction 1 2. Theorical Background 5 2.1 Properties of ZnO 6 2.1.1 Crystal Structure 6 2.1.2 ZnO Growth Methods 7 2.1.3 Optical Transition in ZnO Material 7 2.1.4 Divices Based on ZnO 7 2.2 Photodetector 9 2.2.1 Mechanism and Calculation of Optical Absorption 9 2.2.2 Photoconductor 12 2.2.3 Photodiode 13 2.3 Antireflection structure 16 2.3.1 Introduction 16 2.3.2 Theory of Antireflection 18 2.4 Photoluminescence (PL) Spectroscopy 21 2.4.1 Photoluminescence Emission 21 2.4.2 Recombination Processes 23 2.5 Raman Spectroscopy 25 2.5.1 Anti-Stokes and Stokes Lines 27 3. Experimental Details 32 3.1 Photoluminescence Apparatus 33 3.2 Raman Scattering Apparatus 34 3.3 DC Sputter Deposition 38 3.4 Reactive Ion Etching 40 3.5 Evaporation 41 3.6 Scanning Electron Microscopy 43 4. Fabrication and characterization of Si-nanotips array 48 4.1 Introduction 49 4.2 Experiment 49 4.3 Results and Discussion 51 4.4 Summary 60 5. Highly Sensitive Photodetector Based on n-ZnO/p-Si-nanotips Heterostructure 62 5.1 Introduction 63 5.2 Experiment 64 5.3 Results and Discussion 67 5.4 Summary 76 6. Conclusion 79 | |
dc.language.iso | en | |
dc.title | 高敏感度光偵測器之製程與研究 | zh_TW |
dc.title | Highly Sensitive Photodetector Based on n-ZnO/p-Si-nanotips Heterostructure | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 林泰源(Tai-Yuan Lin),沈志霖(Jr-Lin Shen) | |
dc.subject.keyword | 氧化鋅,光偵測器,矽奈米尖錐,電子束蒸鍍,光響應, | zh_TW |
dc.subject.keyword | ZnO,photodetector,Si-nanotips,e-beam evaporation,responsivity, | en |
dc.relation.page | 80 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2009-07-23 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 物理研究所 | zh_TW |
顯示於系所單位: | 物理學系 |
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