https://scholars.lib.ntu.edu.tw/handle/123456789/31974
DC 欄位 | 值 | 語言 |
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dc.contributor | 陳永芳 | en |
dc.contributor | 臺灣大學:物理研究所 | zh_TW |
dc.contributor.author | 吳冠儒 | zh |
dc.contributor.author | Wu, Kuan-Ju | en |
dc.creator | 吳冠儒 | zh |
dc.creator | Wu, Kuan-Ju | en |
dc.date | 2007 | en |
dc.date.accessioned | 2007-11-26T09:17:03Z | - |
dc.date.accessioned | 2018-06-28T09:38:33Z | - |
dc.date.available | 2007-11-26T09:17:03Z | - |
dc.date.available | 2018-06-28T09:38:33Z | - |
dc.date.issued | 2007 | - |
dc.identifier | en-US | en |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/54496 | - |
dc.description.abstract | Abstract In this thesis we report the study of optical and electrical properties on the composites based on liquid crystals and CdS nanorods. Quite interesting results have been obtained from our studies, which are very useful for the understanding as well as application of these materials. They are presented as follow. The novel nanocomposite device reveals a very unique and useful behavior that the polarization of the emission from semiconductor nanorods can be controlled by an external bias. The large magnitude of polarization anisotropy of 0.63 can be quantitatively interpreted very well in terms of the dielectric contrast between semiconductor and liquid crystal. Our approach is quite general, which is applicable to other nanomaterials, and it utilizes the currently mature liquid crystal display technology. The results open up new possible applications for one-dimensional semiconductor nanostructures in smart optoelectronic applications, including optical switches, integrated photonic devices, as well as electrochromatic gadgets in the near future. | en |
dc.description.tableofcontents | Contents List of Figures III List of Tables VIII 1. Introduction 1 2. Background 6 2. 1 Semiconductor nanowire (nanorod) 6 2.1.1 Characterization Of Semiconductor Nanowire 7 2.1.1.1 Transport Properties 7 2.1.1.2 Phonon-Transport Properties 7 2.1.1.3 Optical Properties 8 2.1.2 Device Application Of Semiconductor Nanowires 9 2.1.2.1 Electronic Devices 9 2.1.2.2 Light Emitting Devices 10 2.1.2.3 Photovoltaic Applications 11 2. 2 Liquid crystal (LCs) 11 2. 2. 1. Types of liquid crystal 11 2. 2. 1. 1 Calamitic Liquid Crystals 12 2. 2. 1. 2 Discotic Liquid Crystals 12 2. 2. 2 Basic physical properties of Liquid crystal 13 2. 2. 2. 1 Orientational order parameter 13 2. 2. 2. 2 Dielectric anisotropy 14 2. 2. 2. 3 Elastic constants 15 2. 2. 2. 4 Viscosity 16 2. 2. 3 Surface Alignment and Rubbing 17 2. 2. 4 Deformation of nematic liquid crystals by an electric field 18 2. 3 Micro-Photoluminescence 20 2. 3. 1 Principles and Applications of Micro-Photoluminescence 20 2. 3. 2 The Apparatus for Micro-Photoluminescence Measurement 23 3. CdS nanorods imbedded in liquid crystal cells for smart optoelectronic devices 44 3.1 Introduction 44 3.2 Experiment 45 3.2.1 Sample Preparation 45 3.2.2 Experiment setup and process 46 3.3 Results and Discussion 49 3.4 Summary 54 4. Conclusion 66 | en |
dc.language | en-US | en |
dc.language.iso | en_US | - |
dc.subject | 液晶 | en |
dc.subject | 硫化鎘 | en |
dc.subject | liquid crystal | en |
dc.subject | CdS | en |
dc.title | 半導體與液晶複合材料之特性研究 | zh |
dc.title | Unique properties of semiconductor and liquid crystal nano composites | en |
dc.type | thesis | en |
dc.relation.reference | References of Chapter 1 1. Z. L. Wang, Nanowires and nanobelts: material, properties, and devices (Kluwer Academic Publishers, Boston, 2003). 2. Y. Li, F. Qian, J. Xiang and C. M.Lieber, Materials Today 9(10), 18 (2006). 3. P. J. Pauzauskie and P. D. Yang, Materials Today 9(10), 36 (2006) . 4. J. M. Lin,; H. Y. Lin, C. L. Cheng and Y. F. Chen, Opt. Lett. 31, 3173 (2006). 5. J. T. Hu, L. S. Li,; W. D. Yang, L. Manna, L. W. Wang and A. P. Alivisatos, Science 292, 2060 (2001). 6. M. D. Lynch and D. L. Patrick, Nano Letters 2, 1197 (2002). 7. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals (Clarendon, Oxford, 1993) 8. P. C. Yeh, and C. Gu, Optics of Liquid Crystal Displays (Wiley, New York, 1999). 9. C. Schuller, F. Klopf, J. P. Reithmaier, M. Kamp, and A. Forchel, Appl. Phys. Lett. 82, 2767 (2003). 10. B. Maune, M. Loncar, J. Witzens, M. Hochberg, T. Baehr-Jones, D. Psaltis, A. Scherer and Yueming Qiu, Appl. Phys. Lett. 85, 360 (2004). 11. G. H. Heilmeier and L. A. Zanoni, Appl. Phys. Lett. 13, 91 (1968). 12. G. H. Heilmeier and J. E. Goldmacher, Appl. Phys. Lett. 13, 132 (1968). 13. M. Schadt and W. Helfrich, Appl. Phys. Lett. 18, 127 (1971). 14. M. F. Schiekel and K. Fahrenschon, Appl. Phys. Lett. 19, 391 (1971). 15. R. A. Soref, J. Appl. Phys. 45, 5466 (1974). 16. S. Matsumoto, M. Kawamoto, and K. Mizunoya, J. Appl. Phys. 47, 3842 (1976). 17. T. J. Scheffer and J. Nehring, J. Appl. Phys. Lett. 45, 1021 (1984). 18. T. Miyashita, Y. Yamaguchi, and T. Uchida, Jpn. J. Appl. Phys. Part 2 34, L177 (1995). 19. M. Kreuzer, E. Benkler, D. Paparo, G. Casillo, and L. Marrucci, Phys. Rev. E 68, 011701 (2003). 20. W. M. Gibbons, P. J. Shannon, S. T. Sun, and B. J. Swetlin, Nature 351, 49 (1991). 21. T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995). 22. M. Schadt, H. Seiberle, and A. Schuster, Nature 381, 212 (1996). 23. M. Vilfan, I. D. Olenik, A. Mertelj, and M. Copic, Phys. Rev. E 63, 061709 (2001). 24. V. Chigrinov, S. Pikin, A. Verevochnikov, V. Kozenkov, M. Khazimullin, J. Ho, D. D. Huang, and H. S. Kwok, Phys. Rev. E 69, 061713 (2004) References of Chapter 2 1. A. A. Balandin and K. L. Wang, Handbook of Semiconductor Nanostructures and Nanodevices 4 (American Scientific Publishers, Los Angeles, California, USA, 2006). 2. R. Martel, T Schmidt, H. R. Shea, T. Hertel, and P. Avouris, Appl. Phys. Lett. 73, 2447 (1998). 3. J.C. Johnson, H. J.Choi, K. R. Knutsen, R D. Schaller, R Yang, and R. J. Saykally, Nature Mater. 1, 106 (2002). 4.H. M. Kim, T W. Kang, and K. S. Chung, Adv Mater. 15, 567 (2003). 5. A. Kolmakov, Y. Zhang, G. Cheng, and M. Moskovits, Adv Mater. 15, 997 (2003). 6. X. Duan, Y. Huang, Y. Cui, J. Wang, and C. M. Lieber, Nature 409, 66 (2001) 7. Y. Huang, X. Duan, Y. Cui, L. J-Lauhon, K. H. Kim, and C. M. Lieber, Science 294, 1313 (2001). 8. D. H. Cobden, Nature 409, 32 (2001). 9. G. Y. Tseng, and J. C. Ellenbogen, Science 294, 1293 (2001). 10. R. F. Service, Science 293, 782 (2001). 11. Y. Huang, X. Duan, Y. Cui, and C. M. Lieber, Nano Lett. 2, 101 (2002). 12. Y. Cui and C. M. Lieber, Science 291, 851 (2001). 13. S. G. Volz and G. Chen, Appl-Phys. Lell. 75, 2056 (1999). 14. C. Dames and G. Chen, J. Appl. Physics 95, 682 (2004). 15. X. Lu, T. Hanrath, K. P. Johnston, and B. A. Korgel, Nano Lett. 3, 93 (2003). 16. T. Hanrath and B. A. Korgel, J. Am. Chem. Soc. 124, 1424 (2001). 17. J. D. Holmes, K. P. Johnston, R. C. Doty, and B .A. Korgel, Science 287, 1471 (2000). 18. M. V Wolkin, J.Jorne, P. M. Fauchet, G. Allan, and C. Deleme, Phys. Rev. Lett. 82, 197 (1999). 19.J. F. Wang, M. S.Gudiksen, X. EDuan, Y. Cui, and C. M. Lieber, Science 293, 1455 (2001). 20.H M. Lani, M. H. Hong, S. Yuan, and T. C. Chong, App. Phys. A 79, 2099 (2004). 21 Y. Cui, X. Duan, J. Hu, and C. M. Lieber, J. Phys. Chem. B 104, 5213 (2000). 22. Y. Cui and C. M. Lieber, Science 291, 891 (2001). 23. J. Wang, M. 5. Gudiksen, X. Duan, Y. Cui, and C. M. Lieber, Science 293, 1455 (2001). 24. H. Kind, H. Yan, M. Law, B. Messer, and P.Yang, Adv. Mater. 14, 158 (2002). 25. M. Huang, S. Mao, H. Feick, H. Yan, Y. Wu,H. Kind, E. Weber, R. Russo, and P. Yang, Science 292, 1897 (2001). 26. W. U. Huynh, J. J. Dittmer, and A. P. Alivisatos, Science 295, 2425 (2002) . 27. P. J. Collings and M. Hird, R. A. Stradling and P. C. Klipstein, Introduction to Liquid crystals Chemistry and Physics (Taylor & Francis, 1997). 28. P. J. Collings, Liquid crystals (Nature’s Delicate Phase of Matter) (Princeton University Press, 1990). 29. S. Chandrasekhar, Liquid crystals (Cambridge University Press, 1977). 30. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals (Clarendon, Oxford, 1993). 31. N. A. Plate, Liquid crystal polymers (Plenum Press, New York, 1993). 32. A. M. Donald and A. H. Windle, Liquid crystalline polymers (Cambridge University Press, 1992). 33. H. Stegemeyer, Liquid Crystals (Steinkopff Darmstadt Springer, New York, 1994). 34. L.M Blinov and V.G Chigrlnov, Electrooptic Effects in Liquid Crystal Materials (Springer Verlag, New York, 1994). 35. P. C. Yeh, and C. Gu, Optics of Liquid Crystal Displays (Wiley, New York, 1999). 36. V.G Chigrlnov, Liquid Crystal Devices: Physics and Applications (Artech House, 1999). 37. R. A. Stradling and P. C. Klipstein, in Growth and Characterisation of Semiconductors (Hilger, 1990). 38. S. Perkowitz, in Optical Characterization of Semiconductors: Infrard, Raman, and Photoluminescence Spectroscopy (Academic Press, 1993). 39. Y. H. Chen, Master Thesis, N. T. U., Taiwan (2005). References of Chapter 3 1. I. Gur, N. A. Fromer, M. L. Geier and A. P. Alivisatos, Science 310, 462 (2005). 2. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals (Clarendon, Oxford, 1993) 3. C. Y. Chen, C. T. Cheng, C.W. Lai, Y.H.Hu, P. T. Chou, Y. H. Chou and H. T. Chiu, Small 12, 1215 (2005) 4. P. Poulin, V. Cabuil and D. A. Weitz, Phys. Rev. Lett. 79, 4862 (1997). 5. P. Poulin, H. Stark, T. C. Lubensky and D. A. Weitz, Science 275, 1770 (1997). 6. J. C. Loudet, P. Barois and P. Poulin, Nature 407, 611(2000). 7. D. Andrienko, M. P. Allen, G. Skacej and S. Zumer, Phys. Rev. E 65, 041702 (2002). 8. C. Lapointe, A. Hultgren, D. M. Silevitch,; E. J. Felton, D. H. Reich and R. L. Leheny, Science 303, 652 (2004). 9. C. Lapointe, N. Cappallo, D. H. Reich and R. L. Leheny, J. Appl. Phys. 97, 10Q304(2005). 10. K. C. Chu, C. Y. Chao, Y. F. Chen, Y. C. Wu and C. C. Chen, Appl. Phys. Lett. 89, 103107 (2006). 11. D. R. Nelson, Nano Letters 2, 1125 (2002). 12. S. Y. Park and D. Stroud, Phys. Rev. Lett. 94, 217401 (2005). 13. S. V. Burylov and Y. L. Raikher, Phys. Rev. E 50, 358 (1994). 14. M. D. Lynch and D. L. Patrick, Nano Letters 2, 1197 (2002). 15. F. Vouilloz, D. Y. Oberli, M. -A. Dupertuis, A. Gustafsson, F. Reinhardt and E. Kapon, Phys. Rev. B 57, 12378 (1998). 16. R. Venugopal, P. I. Lin, C. C. Liu and Y. T. Chen, J. Am. Chem. Soc. 127, 11262 (2005). 17. J. F. Wang, M. S. Gudiksen, X. F. Duan, Y. Cui and C. M. Lieber, Science 293, 1455 (2001). 18. Jifa Qi, A. M. Belcher and J. M. White, Appl. Phys. Lett. 82, 2616 (2003). 19. H. Akiyama, T. Someya and H. Sakaki, Phys. Rev. B 53, R4229(1996). 20. L. D. Landau, E. M. Lifshitz and L. P. Pitaevskil, Electrodynamics of Continuous Media 34 (1984). 21. Pochi, Y.; C. Gu, Optics of liquid crystal displays (Wiley, New York, c1999) | en |
item.openairetype | thesis | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_46ec | - |
item.grantfulltext | none | - |
item.languageiso639-1 | en_US | - |
item.cerifentitytype | Publications | - |
顯示於: | 物理學系 |
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