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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/48248完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 范文祥(Wun-Shain Fann) | |
| dc.contributor.author | Yu-Tai Kao | en |
| dc.contributor.author | 高譽泰 | zh_TW |
| dc.date.accessioned | 2021-06-15T06:50:07Z | - |
| dc.date.available | 2011-02-25 | |
| dc.date.copyright | 2011-02-25 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-02-17 | |
| dc.identifier.citation | [1] C. K. Chiang, et al., 'Electrical Conductivity in Doped Polyacetylene,' Physical Review Letters, vol. 39, p. 1098, 1977.
[2] F. Garnier, et al., 'All-Polymer Field-Effect Transistor Realized by Printing Techniques,' Science, vol. 265, pp. 1684-1686, September 16 1994. [3] M. Pope, et al., 'Electroluminescence in Organic Crystals,' Journal of Chemical Physics, vol. 38, pp. 2042-&, 1963. [4] P. S. Vincett, et al., 'Electrical conduction and low voltage blue electroluminescence in vacuum-deposited organic films,' Thin Solid Films, vol. 94, pp. 171-183, 1982. [5] C. W. Tang and S. A. Vanslyke, 'Organic Electroluminescent Diodes,' Applied Physics Letters, vol. 51, pp. 913-915, Sep 21 1987. [6] C. W. Tang, et al., 'Electroluminescence of Doped Organic Thin-Films,' Journal of Applied Physics, vol. 65, pp. 3610-3616, May 1 1989. [7] J. H. Burroughes, et al., 'Light-emitting diodes based on conjugated polymers,' Nature, vol. 347, pp. 539-541, 1990. [8] D. Braun, et al., 'Improved efficiency in semiconducting polymer light-emitting diodes,' Journal of Electronic Materials, vol. 20, pp. 945-948, 1991. [9] D. Braun and A. J. Heeger, 'Visible-Light Emission from Semiconducting Polymer Diodes,' Applied Physics Letters, vol. 58, pp. 1982-1984, May 6 1991. [10] C. H. Chou, et al., 'Enhanced luminance and thermal properties of poly(phenylenevinylene) copolymer presenting side-chain-tethered silsesquioxane units,' Macromolecules, vol. 38, pp. 9117-9123, Nov 1 2005. [11] H. L. Chou, et al., 'Enhancing quantum efficiency of MEH-PPV through the reduction of chain aggregations by thermal treatments,' Journal of Polymer Science Part B-Polymer Physics, vol. 43, pp. 1705-1711, Jul 1 2005. [12] M. Voigt, et al., 'The interplay between the optical and electronic properties of light-emitting-diode applicable conjugated polymer blends and their phase-separated morphology,' Organic Electronics, vol. 6, pp. 35-45, Feb 2005. [13] D. Kabra, et al., 'Efficient Single-Layer Polymer Light-Emitting Diodes,' Advanced Materials, vol. 22, pp. 3194-+, Aug 3 2010. [14] C. L. Donley, et al., 'Effects of packing structure on the optoelectronic and charge transport properties in poly(9,9-di-n-octylfluorene-alt-benzothiadiazole),' Journal of the American Chemical Society, vol. 127, pp. 12890-12899, Sep 21 2005. [15] Y. F. Huang, et al., 'Nanostructure-dependent vertical charge transport in MEH-PPV films,' Advanced Functional Materials, vol. 17, pp. 2902-2910, Oct 15 2007. [16] Y. F. Huang, et al., 'Correlating Nanomorphology with Charge-Transport Anisotropy in Conjugated-Polymer Thin Films,' Advanced Materials, vol. 21, pp. 2988-+, Aug 7 2009. [17] F. Ebisawa, et al., 'Electrical-Properties of Polyacetylene Polysiloxane Interface,' Journal of Applied Physics, vol. 54, pp. 3255-3259, 1983. [18] A. Tsumura, et al., 'Macromolecular Electronic Device - Field-Effect Transistor with a Polythiophene Thin-Film,' Applied Physics Letters, vol. 49, pp. 1210-1212, Nov 3 1986. [19] A. Assadi, et al., 'Field-Effect Mobility of Poly(3-Hexylthiophene),' Applied Physics Letters, vol. 53, pp. 195-197, Jul 18 1988. [20] J. H. Burroughes, et al., 'New semiconductor device physics in polymer diodes and transistors,' Nature, vol. 335, pp. 137-141, 1988. [21] V. C. Sundar, et al., 'Elastomeric transistor stamps: Reversible probing of charge transport in organic crystals,' Science, vol. 303, pp. 1644-1646, Mar 12 2004. [22] I. Mcculloch, et al., 'Liquid-crystalline semiconducting polymers with high charge-carrier mobility,' Nature Materials, vol. 5, pp. 328-333, Apr 2006. [23] C. D. Dimitrakopoulos and P. R. L. Malenfant, 'Organic Thin Film Transistors for Large Area Electronics,' Advanced Materials, vol. 14, pp. 99-117, 2002. [24] H. Sirringhaus, et al., 'Two-dimensional charge transport in self-organized, high-mobility conjugated polymers,' Nature, vol. 401, pp. 685-688, Oct 14 1999. [25] H. Sirringhaus, et al., 'Mobility enhancement in conjugated polymer field-effect transistors through chain alignment in a liquid-crystalline phase,' Applied Physics Letters, vol. 77, pp. 406-408, Jul 17 2000. [26] Z. J. Zheng, et al., 'Uniaxial alignment of liquid-crystalline conjugated polymers by nanoconfinement,' Nano Letters, vol. 7, pp. 987-992, Apr 2007. [27] J. Zaumseil, et al., 'Electron-Hole Recombination in Uniaxially Aligned Semiconducting Polymers,' Advanced Functional Materials, vol. 18, pp. 3630-3637, Nov 24 2008. [28] H. Bässler, 'Charge Transport in Disordered Organic Photoconductors a Monte Carlo Simulation Study,' physica status solidi (b), vol. 175, pp. 15-56, 1993. [29] R. Jankowiak, et al., 'Absorption-Spectroscopy of Amorphous Tetracene,' Journal of Physical Chemistry, vol. 87, pp. 552-557, 1983. [30] H. Antoniadis, et al., 'Carrier Deep-Trapping Mobility-Lifetime Products in Poly(P-Phenylene Vinylene),' Applied Physics Letters, vol. 65, pp. 2030-2032, Oct 17 1994. [31] J. Zaumseil, et al., 'Efficient top-gate, ambipolar, light-emitting field-effect transistors based on a green-light-emitting polyfluorene,' Advanced Materials, vol. 18, pp. 2708-+, Oct 17 2006. [32] L. L. Chua, et al., 'General observation of n-type field-effect behaviour in organic semiconductors,' Nature, vol. 434, pp. 194-199, Mar 10 2005. [33] J. S. Swensen, et al., 'Light emission from an ambipolar semiconducting polymer field-effect transistor,' Applied Physics Letters, vol. 87, pp. -, Dec 19 2005. [34] D. I. Bower, An Introduction to Polymer Physics. New York: Cambridge University Press, 2002. [35] L. H. Sperling, Introduction to Physical Polymer Science, 4th ed. Bethlehem, Pennysylvania: John Wiley & Sons, Inc.,. Hoboken, New Jersey, 2006. [36] L. Onsager, 'The Effects of Shape on the Interaction of Colloidal Particles,' Annals of the New York Academy of Sciences, vol. 51, pp. 627-659, 1949. [37] P. J. Flory, 'Phase Equilibria in Solutions of Rod-Like Particles,' Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, vol. 234, pp. 73-89, 1956. [38] P. J. Flory and A. Abe, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .1. Theory for Polydisperse Systems,' Macromolecules, vol. 11, pp. 1119-1122, 1978. [39] A. Abe and P. J. Flory, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .2. Ternary-Systems,' Macromolecules, vol. 11, pp. 1122-1126, 1978. [40] P. J. Flory and R. S. Frost, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .3. Most Probable Distribution,' Macromolecules, vol. 11, pp. 1126-1133, 1978. [41] R. S. Frost and P. J. Flory, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .4. Poisson-Distribution,' Macromolecules, vol. 11, pp. 1134-1138, 1978. [42] P. J. Flory, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .5. Mixtures with Random Coils,' Macromolecules, vol. 11, pp. 1138-1141, 1978. [43] P. J. Flory, 'Statistical Thermodynamics of Mixtures of Rodlike Particles .6. Rods Connected by Flexible Joints,' Macromolecules, vol. 11, pp. 1141-1144, 1978. [44] P. J. Flory and G. Ronca, 'Theory of Systems of Rodlike Particles: I. Athermal systems,' Molecular Crystals and Liquid Crystals, vol. 54, pp. 289 - 309, 1979. [45] P. J. Flory and G. Ronca, 'Theory of Systems of RodIike Particles: II. Thermotropic systems with orientation-dependent interactions,' Molecular Crystals and Liquid Crystals, vol. 54, pp. 311 - 330, 1979. [46] P. G. de Gennes and J. Prost, The Physics of Liquid Crystals, 2nd ed. ed. New York: Oxford University Press, 1993. [47] http://www.olympusmicro.com/primer/lightandcolor/polarization.html, 'Light Passing Through Crossed Polarizers'. [48] http://www.olympusmicro.com/primer/lightandcolor/birefringence.html, 'Birefringent Crystals Between Crossed Polarizers'. [49] U. Rauscher, et al., 'Exciton versus band description of the absorption and luminescence spectra in poly(p-phenylenevinylene),' Physical Review B, vol. 42, p. 9830, 1990. [50] K. Pakbaz, et al., 'Nature of the primary photoexcitations in poly(arylene-vinylenes),' Synthetic Metals, vol. 64, pp. 295-306, 1994. [51] W. P. Su, et al., 'Solitons in Polyacetylene,' Physical Review Letters, vol. 42, p. 1698, 1979. [52] A. J. Heeger, et al., 'Solitons in Conducting Polymers,' Reviews of Modern Physics, vol. 60, pp. 781-850, Jul 1988. [53] D. D. C. Bradley, et al., 'Photoexcitation in poly(p-phenylene vinylene),' Synthetic Metals, vol. 29, pp. 121-127, 1989. [54] J. R. Lakowicz, Principles of Fluorescence Spectroscopy, Third Edition ed. University of Maryland School of Medicine Baltimore, Maryland, USA: Springer, 2006. [55] E. E. Jelley, 'Spectral absorption and fluorescence of dyes in the molecular state,' Nature, vol. 138, pp. 1009-1010, Jul-Dec 1936. [56] V. M. Agranovich and G. C. L. Rocca, Organic nanostructures: science and applications: Società italiana di fisica, 2002. [57] Q. Zhang, et al., 'Highly efficient resonant coupling of optical excitations in hybrid organic/inorganic semiconductor nanostructures,' Nature Nanotechnology, vol. 2, pp. 555-559, Sep 2007. [58] M. Kasha, 'Energy Transfer Mechanisms and Molecular Exciton Model for Molecular Aggregates,' Radiation Research, vol. 20, pp. 55-71, 1963. [59] S. M. Sze and K. K. Ng, Physics of Semiconductor Devices, 3rd ed.: John Wiley & Sons, Inc., Hoboken, New Jersey., 2007. [60] R. Capelli, et al., 'Ambipolar organic light-emitting transistors employing heterojunctions of n-type and p-type materials as the active layer,' Journal of Physics-Condensed Matter, vol. 18, pp. S2127-S2138, Aug 23 2006. [61] F. Cicoira, et al., 'Organic light-emitting transistors based on solution-cast and vacuum-sublimed films of a rigid core thiophene oligomer,' Advanced Materials, vol. 18, pp. 169-+, Jan 19 2006. [62] M. Muccini, 'A bright future for organic field-effect transistors,' Nature Materials, vol. 5, pp. 605-613, Aug 2006. [63] M. J. Banach, et al., 'Influence of the molecular weight on the thermotropic alignment of thin liquid crystalline polyfluorene copolymer films,' Macromolecules, vol. 36, pp. 2838-2844, Apr 22 2003. [64] M. J. Banach, et al., 'Influence of the casting solvent on the thermotropic alignment of thin liquid crystalline polyfluorene copolymer films,' Macromolecules, vol. 37, pp. 6079-6085, Aug 10 2004. [65] B. Tian, et al., 'Optical-Spectra and Structure of Oligomeric Models of Polyparaphenylenevinylene,' Journal of Chemical Physics, vol. 95, pp. 3191-3197, Sep 1 1991. [66] B. Tian, et al., 'Electronic and Structural-Properties of Polyparaphenylenevinylene from the Vibrational-Spectra,' Journal of Chemical Physics, vol. 95, pp. 3198-3207, Sep 1 1991. [67] K. Y. Peng, et al., 'Efficient light harvesting by sequential energy transfer across aggregates in polymers of finite conjugational segments with short aliphatic linkages,' Journal of the American Chemical Society, vol. 123, pp. 11388-11397, Nov 21 2001. [68] M. Grell, et al., 'Chain geometry, solution aggregation and enhanced dichroism in the liquid-crystalline conjugated polymer poly(9,9-dioctylfluorene),' Acta Polymerica, vol. 49, pp. 439-444, Aug 1998. [69] J. Zaumseil, et al., 'Spatial control of the recombination zone in an ambipolar light-emitting organic transistor,' Nature Materials, vol. 5, pp. 69-74, Jan 2006 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/48248 | - |
| dc.description.abstract | 研究poly((9,9-di-n-octylfluorenyl-2,7-diyl)-alt-(benzo(2,1,3)thiadiazol-4,8-diyl)) (F8BT) 高分子薄膜型態改變對於其光學性質及電荷傳導遷移率的相關性。在光學性質方面，以偏光顯微鏡為主，吸收光譜與螢光光譜為輔；電性方面，以場效電晶體方法量測在水準方向上的電荷傳導遷移率。
本研究中，比較旋轉塗布、滴式塗布與靜態電場滴式塗布三種成膜方法對結構上的影響，而後對薄膜進行退火和淬火處理，使其產生向列型液晶相。在偏光顯微鏡下，只有靜態電場滴式塗布製膜會產生光學異向性，可知在電場作用下，F8BT分子產生有序的結構，而其在熱處理後會形成最顯著的液晶相。由吸收光譜的結果顯示，靜態電場滴式塗布製膜在熱處理後表現出最大的紅位移現象，是因產生顯著液晶相時共軛長度增加最多所致。製作場效電晶體元件，發現只要形成液晶相，皆有相似的電洞遷移率，說明顯著的液晶相對於電荷傳導並沒有太大的助益。比較靜態電場滴式塗布製膜與其退火後形成顯著液晶相的電洞遷移率，兩者也是相似的，故遷移率的結果指出，電場影響下初始的膜形成有序結構與退火後產生有序的液晶相排列，靜態電場可誘導F8BT分子形成有序結構的薄膜，可避免使用退火處理的方法形成向列型液晶相，而達到相同數量級的電洞遷移率。 | zh_TW |
| dc.description.abstract | In this study, the morphology of poly((9,9-di-n-octylfluorenyl-2,7-diyl)-alt- (benzo(2,1,3)thiadiazol-4,8-diyl)) (F8BT) were studied for understanding its effect on optical properties and carrier mobility. The morphology of films was observed by polarized optical microscope (POM) and the actions of molecules were deduced by UV-visible absorption spectra and photoluminescence (PL) spectra. The carrier mobility in horizontal direction was measured by using a field-effect transistor (FET) geometry.
Comparison of films prepared from different methods, spin-coating, drop-casting and drop-cast film at presence of a static electric field (E-drop-casting) offered an opportunity to characterize the influence of film morphology on charge transport. The films suffered heat treatments showed a nematic liquid crystalline (LC) phase and kept on through quenching resulting in red-shifted absorption spectra. Only the E-drop-cast film revealed an optical anisotropic phase viewed by POM, implying that F8BT molecules rearranged to an ordered structure under the presence of a static electric field. Furthermore, the E-drop-cast film after annealing came into the most obvious LC phase. Both the E-drop-cast films and the films after heat treatment showed the similar carrier mobility. The results indicated that static electric field could drive F8BT polymer chains to pack with each others and generated ordered structure. The films after annealing also exhibited ordered structure in nematic liquid crystalline phase. These ordered structures enhanced the mobility approximate to one order. The advantage of preparing the film at presence of electric field could not only avoid heat treatment but also raise charge transport mobility. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T06:50:07Z (GMT). No. of bitstreams: 1 ntu-100-R96549021-1.pdf: 8196454 bytes, checksum: 333bf8ab9cf141ab809753961802dbe8 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 口試委員審定書 i
誌謝 ii 摘要 iii Abstract iv List of Figures and Tables viii Chapter 1 Introduction 1 1.1 Fundamental Review 1 1.2 Conducting Polymers 3 1.2.1 Disorder and Hopping Charge Transport 6 1.2.2 Orientation and Liquid crystalline phase 7 1.2.3 Polarized Optical Microscope 13 1.2.4 Spectra properties 15 1.3 Field Effect Transistors 22 1.4 Motivation 27 Chapter 2 Experiments 28 2.1 Sample preparation 28 2.2 Differential Scanning Calorimeter 30 2.3 Optical apparatus 31 2.4 Field-Effect Transistors manufacture 31 Chapter 3 Results and Discussion 39 3.1 Transition temperatures of F8BT 39 3.2 Optical properties 40 3.2.1 Spin-coated films 40 3.2.2 Drop-cast films 44 3.2.3 E-drop-cast films 47 3.3 Electrical properties 50 3.4 Comparisons 55 Chapter 4 Conclusions and Future works 58 Reference 59 | |
| dc.language.iso | en | |
| dc.subject | 吸收光譜 | zh_TW |
| dc.subject | 向列型液晶 | zh_TW |
| dc.subject | 場效電晶體 | zh_TW |
| dc.subject | 型態 | zh_TW |
| dc.subject | 偏光顯微鏡 | zh_TW |
| dc.subject | F8BT | zh_TW |
| dc.subject | Morphology | en |
| dc.subject | F8BT | en |
| dc.subject | Field-Effect Transistor | en |
| dc.subject | Nematic Liquid Crystalline phase | en |
| dc.subject | Polarized Optical Microscope | en |
| dc.subject | UV-visible Absorption Spectra | en |
| dc.title | 利用電場輔助塗佈增進F8BT薄膜之載子遷移率 | zh_TW |
| dc.title | Enhanced Charge-Transport Property of F8BT Films with Electric-Field-Assisted Casting | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 蔡豐羽(Feng-Yu Tsai) | |
| dc.contributor.oralexamcommittee | 曹培熙(Pei-Hsi Tsao),廖文彬(Wen-Bin Liau) | |
| dc.subject.keyword | F8BT,偏光顯微鏡,吸收光譜,型態,場效電晶體,向列型液晶, | zh_TW |
| dc.subject.keyword | F8BT,Polarized Optical Microscope,UV-visible Absorption Spectra,Field-Effect Transistor,Morphology,Nematic Liquid Crystalline phase, | en |
| dc.relation.page | 65 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-02-18 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 高分子科學與工程學研究所 | zh_TW |
| 顯示於系所單位： | 高分子科學與工程學研究所 | |
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