Responsive image
博碩士論文 etd-0814112-111157 詳細資訊
Title page for etd-0814112-111157
論文名稱
Title
利用飛行時間法研究有機載子傳輸特性
Investigation of charge carrier property with time of flight measurement
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
64
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2012-07-26
繳交日期
Date of Submission
2012-08-14
關鍵字
Keywords
飛行時間、載子遷移率、刮刀塗佈、暫態光電流、純化
transient photocurrent, purification, doctor blading, mobility, time of flight
統計
Statistics
本論文已被瀏覽 5683 次,被下載 618
The thesis/dissertation has been browsed 5683 times, has been downloaded 618 times.
中文摘要
本論文研究兩系列新開發材料的載子傳輸特性,透過使用飛行時間量測法計算載子遷移率,並嘗試在不同電場下測量載子遷移率,兩系列材料的載子遷移率皆隨外加電場增加而上升,符合Poole-Frenkel 模型,同時發現部份材料具備雙載子傳輸特性,在光電元件的應用上非常實用。
首先研究一系列的吡咯衍生物(pyrrole derivatives),發現外接的官能基團對載子傳輸有顯著的影響,除了表現雙載子傳輸與單載子傳輸的差異,甚至載子遷移率可以相差兩個數量級以上,同時也發現官能基團的鍵結位置也是影響載子傳輸的重要因素。隨後在蔥衍生物系列(anthracene derivatives)的研究中可以發現,透過外加官能基團與聚合形成高分子,有效增加薄膜態時的穩定度,同時保有未聚合前的雙載子傳輸特性。
Abstract
In this thesis, we investigated charge carrier properties of two series of organic semiconductors with time of flight measurement. Charge carrier mobility is calculated in different electron filed and fitted to Poole-Frenkel model.
In the first part, we investigated carrier properties of pyrrole derivatives .The mea- surement result of pyrrole derivatives with different functional group indicate that trans- port properties may effected by this different functional group and the bonding position. There have two different type of transport properties that is single transport and bipolar transport. In addition, carrier mobility have more than two order difference with this different functional group.
Finally, we investigated carrier properties of anthracene derivatives. The measure- ment result indicate that the intermolecular aggregation can be solved by synthesizing another functional group to form polymer. This method not only perform excellent thin film stability but also keep bipolar transport property after synthesizing.
目次 Table of Contents
中文論文審定書 I
英文論文審定書 II
致謝 III
摘要 IV
Abstract V
目錄 VI
圖目錄 VIII
第一章 緒論 1
1.1有機半導體發展回顧: 1
1.2有機半導體傳輸機制: 2
1.3載子遷移率理論模型: 4
1.3.1載子遷移率定義 4
1.3.2 Poole-Frenkel model 4
1.4各章提要 6
第二章 實驗方法 7
2.1前言: 7
2.2飛行時間測量法原理: 8
2.3飛行時間測量法訊號分析: 10
2.4材料準備: 12
2.5量測元件製備: 13
2.5.1小分子材料TOF量測元件 13
2.5.2高分子材料TOF量測元件 15
第三章 19
新穎磷光材料吡咯衍生物載子傳輸特性研究 19
3.1簡介: 19
3.2材料物理特性: 20
3.3 載子傳輸特性 25
3.3.1材料 PyMa 25
3.3.2材料 PyNa 25
3.3.3材料 npcz 25
3.3.4材料 npp 26
3.3.5材料 ppn 26
3.4結果與討論 36
3.4.1不同官能基團對載子遷移率的影響 36
3.4.2分子幾何結構對載子遷移率的影響 36
第四章 38
新穎螢光蔥衍生物載子傳輸特性研究 38
4.1簡介 38
4.2材料物理特性 39
4.3 載子傳輸特性 42
4.3.1材料 1-2 42
4.3.2材料1+3 42
4.3.3材料 2-3 43
4.4結果與討論 50
第五章 總結與未來展望 51
參考文獻 52
參考文獻 References
1. Gu, G., et al., Vacuum-deposited, nonpolymeric flexible organic light-emitting devices. Optics Letters, 1997. 22: p. 172-174.
2. Krebs, F.C., Fabrication and processing of polymer solar cells: A review of printing and coating techniques. Solar Energy Materials and Solar Cells, 2009. 93: p. 394-412.
3. Pope, M., et al., Electroluminescence in Organic Crystals. The Journal of Chemical Physics, 1963. 38: p. 2042.
4. Tang, C.W., et al., Organic electroluminescent diodes. Applied Physics Letters, 1987. 51: p. 913.
5. Gunes, S., et al., Conjugated polymer-based organic solar cells. Chemical Reviews, 2007. 107: p. 1324-1338.
6. Lin, Y.Y., et al., Stacked pentacene layer organic thin-film transistors with improved characteristics. Ieee Electron Device Letters, 1997. 18: p. 606-608.
7. 陳金鑫,黃孝文,OLED有機電激發光材料與元件p. 25.
8. Steiner, E., et al., Current densities of localized and delocalized electrons in molecules. Journal of Physical Chemistry A, 2002. 106: p. 7048-7056.
9. Gill, W.D., Drift mobilities in amorphous charge-transfer complexes of trinitro- fluorenone and poly-n-vinylcarbazole. Journal of Applied Physics, 1972. 43: p. 5033.
10. Simmons, J., Poole-Frenkel Effect and Schottky Effect in Metal-Insulator-Metal Systems. Physical Review, 1967. 155: p. 657-660.
11. Kepler, R.G., et al., Electron and hole mobility in tris(8-hydroxyquinolinolato- N1,O8) aluminum. Applied Physics Letters, 1995. 66: p. 3618.
12. Baldo, M.A., et al., Excitonic singlet-triplet ratio in a semiconducting organic thin film. Physical Review B, 1999. 60: p. 14422-14428.
13. Baldo, M.A., et al., Very high-efficiency green organic light-emitting devices based on electrophosphorescence. Applied Physics Letters, 1999. 75: p. 4.
14. Adachi, C., et al., Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials. Applied Physics Letters, 2001. 79: p. 2082.
15. Holmes, R.J., et al., Blue organic electrophosphorescence using exothermic host–guest energy transfer. Applied Physics Letters, 2003. 82: p. 2422.
16. Yeh, S.J., et al., New dopant and host materials for blue-light-emitting phosphorescent organic electroluminescent devices. Advanced Materials, 2005. 17: p. 285.
17. Matsushima, H., et al., Organic electrophosphorescent devices with mixed hole
transport material as emission layer.Current Applied Physics,2005.5:p. 305-308.
18. Tsuboi, T., et al., Spectroscopic and electrical characteristics of highly efficient tetraphenylsilane-carbazole organic compound as host material for blue organic light emitting diodes. Organic Electronics, 2009. 10: p. 1372-1377.
19. Kuo, W.J., et al., Peripheral aryl-substituted pyrrole fluorophores for glassy blue-light-emitting diodes. Tetrahedron, 2007. 63: p. 7086-7096.
20. Li, C.S., et al., Synthesis and photophysical properties of pyrrole/polycyclic aromatic units hybrid fluorophores. J Org Chem, 2010. 75: p. 4004-13.
21. Kuo, W.J., et al.,High Triplet Energy and Effective Electron-Transporting Host for Blue Phosphorescent Emitters. ACOE 2011
22. Shi, J., et al., Anthracene derivatives for stable blue-emitting organic electroluminescence devices. Applied Physics Letters, 2002. 80: p. 3201.
23. Lee, M.T., et al., Stable styrylamine-doped blue organic electroluminescent device based on 2-methyl-9,10-di(2-naphthyl)anthracene. Applied Physics Letters, 2004. 85: p. 3301.
24. Tse, S.C., et al., The role of charge-transfer integral in determining and engi- neering the carrier mobilities of 9,10-di(2-naphthyl)anthracene compounds. Chemical Physics Letters, 2006. 422: p. 354-357.
25. Ho, M.-H., et al., Highly efficient deep blue organic electroluminescent device based on 1-methyl-9,10-di(1-naphthyl)anthracene. Applied Physics Letters, 2006. 89: p. 252903.
26. Gao, Z.Q., et al., High-efficiency deep blue host for organic light-emitting devices. Applied Physics Letters, 2007. 90: p. 123506.
電子全文 Fulltext
本電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。
論文使用權限 Thesis access permission:自定論文開放時間 user define
開放時間 Available:
校內 Campus: 已公開 available
校外 Off-campus: 已公開 available


紙本論文 Printed copies
紙本論文的公開資訊在102學年度以後相對較為完整。如果需要查詢101學年度以前的紙本論文公開資訊,請聯繫圖資處紙本論文服務櫃台。如有不便之處敬請見諒。
開放時間 available 已公開 available

QR Code