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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 黃慶怡 | |
dc.contributor.author | Yi-kang Lan | en |
dc.contributor.author | 蘭宜康 | zh_TW |
dc.date.accessioned | 2021-06-15T00:23:41Z | - |
dc.date.available | 2011-02-03 | |
dc.date.copyright | 2009-02-03 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-01-24 | |
dc.identifier.citation | Handbook of Conducting Polymers 2nd Eds by Skotheim, T. A., Elsenbaumer , R. L., Reynolds, J. R., CRC Press, 1998.
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Japanese Journal of Applied Physics Part 2-Letters 1999, 38 (10B), L1188-L1190. (c) Kim, Y.; Cook, S.; Tuladhar, S. M.; Choulis, S. A.; Nelson, J.; Durrant, J. R.; Bradley, D. D. C.; Giles, M.; McCulloch, I.; Ha, C. S.; Ree, M., A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene: fullerene solar cells. Nature Materials 2006, 5 (3), 197-203. (d) McCullough, R. D.; Lowe, R. D.; Jayaraman, M.; Anderson, D. L., DESIGN, SYNTHESIS, AND CONTROL OF CONDUCTING POLYMER ARCHITECTURES - STRUCTURALLY HOMOGENEOUS POLY(3-ALKYLTHIOPHENES). Journal of Organic Chemistry 1993, 58 (4), 904-912. (e) McCullough, R. D.; Lowe, R. D.; Jayaraman, M.; Ewbank, P. C.; Anderson, D. L.; Tristramnagle, S., SYNTHESIS AND PHYSICAL-PROPERTIES OF REGIOCHEMICALLY WELL-DEFINED, HEAD-TO-TAIL COUPLED POLY(3-ALKYLTHIOPHENES). Synthetic Metals 1993, 55 (2-3), 1198-1203. (f) Pandey, S. S.; Takashima, W.; Nagamatsu, S.; Endo, T.; Rikukawa, M.; Kaneto, K., Regioregularity vs regiorandomness: Effect on photocarrier transport in poly(3-hexylthiophene). Japanese Journal of Applied Physics Part 2-Letters 2000, 39 (2A), L94-L97. (g) Sentein, C.; Mouanda, B.; Rosilio, A.; Rosilio, C., Influence of stereoregularity on the photoinitiated electrical conductivity of poly(3-alkylthiophenes). Synthetic Metals 1996, 83 (1), 27-37. Tashiro, K.; Ono, K.; Minagawa, Y.; Kobayashi, K.; Kawai, T.; Yoshino, K., STRUCTURAL-CHANGES IN THE THERMOCHROMIC SOLID-STATE PHASE-TRANSITION ON POLY(3-ALKYLTHIOPHENE). Synthetic Metals 1991, 41 (1-2), 571-574. Zen, A.; Saphiannikova, M.; Neher, D.; Grenzer, J.; Grigorian, S.; Pietsch, U.; Asawapirom, U.; Janietz, S.; Scherf, U.; Lieberwirth, I.; Wegner, G., Effect of molecular weight on the structure and crystallinity of poly(3-hexylthiophene). Macromolecules 2006, 39 (6), 2162-2171. (a) Merlo, J. A.; Frisbie, C. 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M.; LeBlevennec, G.; Djurado, D.; Rieutord, F.; Chouiki, M.; Travers, J. P.; Pron, A., Effect of macromolecular parameters and processing conditions on supramolecular organisation, morphology and electrical transport properties in thin layers of regioregular poly(3-hexylthiophene). Synthetic Metals 2006, 156 (11-13), 815-823. Mena-Osteritz, E.; Meyer, A.; Langeveld-Voss, B. M. W.; Janssen, R. A. J.; Meijer, E. W.; Bauerle, P., Two-dimensional crystals of poly(3-alkylthiophene)s: Direct visualization of polymer folds in submolecular resolution. Angewandte Chemie-International Edition 2000, 39 (15), 2680-2684. (a) Verilhac, J. M.; Pokrop, R.; LeBlevennec, G.; Kulszewicz-Bajer, I.; Buga, K.; Zagorska, M.; Sadki, S.; Pron, A., Molecular weight dependent charge carrier mobility in poly(3,3 '-dioctyl-2,2 ' : 5 ',2 '-terthiophene). Journal of Physical Chemistry B 2006, 110 (27), 13305-13309. (b) Kline, R. J.; McGehee, M. D.; Kadnikova, E. N.; Liu, J. S.; Frechet, J. M. J., Controlling the field-effect mobility of regioregular polythiophene by changing the molecular weight. Advanced Materials 2003, 15 (18), 1519-+. (c) Kline, R. J.; McGehee, M. D.; Kadnikova, E. N.; Liu, J. S.; Frechet, J. M. J.; Toney, M. F., Dependence of regioregular poly(3-hexylthiophene) film morphology and field-effect mobility on molecular weight. Macromolecules 2005, 38 (8), 3312-3319. Zen, A.; Pflaum, J.; Hirschmann, S.; Zhuang, W.; Jaiser, F.; Asawapirom, U.; Rabe, J. P.; Scherf, U.; Neher, D., Effect of molecular weight and annealing of poly (3-hexylthiophene)s on the performance of organic field-effect transistors. Advanced Functional Materials 2004, 14 (8), 757-764. Chang, J. F.; Clark, J.; Zhao, N.; Sirringhaus, H.; Breiby, D. W.; Andreasen, J. W.; Nielsen, M. M.; Giles, M.; Heeney, M.; McCulloch, I., Molecular-weight dependence of interchain polaron delocalization and exciton bandwidth in high-mobility conjugated polymers. Physical Review B 2006, 74 (11). Brinkmann, M.; Rannou, P., Effect of molecular weight on the structure and morphology of oriented thin films of regioregular poly(3-hexylthiophene) grown by directional epitaxial solidification. Advanced Functional Materials 2007, 17 (1), 101-108. (a) Deng, W. Q.; Goddard, W. A., Predictions of hole mobilities in oligoacene organic semiconductors from quantum mechanical calculations. Journal of Physical Chemistry B 2004, 108 (25), 8614-8621. (b) Coropceanu, V.; Cornil, J.; da Silva, D. A.; Olivier, Y.; Silbey, R.; Bredas, J. L., Charge transport in organic semiconductors. Chemical Reviews 2007, 107 (4), 926-952. (a) Marcus, R. A., CHEMICAL + ELECTROCHEMICAL ELECTRON- TRANSFER THEORY. Annual Review of Physical Chemistry 1964, 15, 155-&. (b) Marcus, R. A., ELECTRON-TRANSFER REACTIONS IN CHEMISTRY - THEORY AND EXPERIMENT (NOBEL LECTURE). Angewandte Chemie- International Edition in English 1993, 32 (8), 1111-1121. (a) Liang, C. X.; Newton, M. 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Nature 2005, 434 (7030), 194-199. (a) Kim, D. H.; Han, J. T.; Park, Y. D.; Jang, Y.; Cho, J. H.; Hwang, M.; Cho, K., Single-crystal polythiophene microwires grown by self-assembly. Advanced Materials 2006, 18 (6), 719-+. (b) Kim, D. H.; Jang, Y.; Park, Y. D.; Cho, K., Controlled one-dimensional nanostructures in poly(3-hexylthiophene) thin film for high-performance organic field-effect transistors. Journal of Physical Chemistry B 2006, 110 (32), 15763-15768. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/41578 | - |
dc.description.abstract | 高規整度的聚(3-己烷基噻吩)(P3HT)由於其應用在有機場效電晶體時,具有可達0.1 cm2/Vsec的高載子遷移率而受到廣泛的注意及研究。本研究希望以理論模擬的角度對P3HT系統內的電荷傳遞機制進行探討,並嘗試計算其系統之電洞遷移率。研究藉由跳躍模型為基礎,針對P3HT系統內的延鏈上及延鏈間維度,分別改變相鄰兩片段間的旋鈕角及片段間距,以量子計算(QM)進行延鏈上及延鏈間兩不同維度之電荷傳遞速率及遷移率之計算。另外並藉由分子動力模擬(MD)技術計算各個不同溫度及規整度環境下的P3HT系統,以得到其分子結構的細部資訊。
結合QM及MD的結果顯示在規整排列區的延鏈上傳遞速率會大於延鏈間傳遞約百倍,鏈上傳遞應是規則區內的主要傳遞路徑。計算結果並顯示延鏈間方向的電洞遷移率為10-2 cm2/Vs,此結果與P3HT的單纖維束實驗結果一致,顯示此方法在共軛高分子遷移率計算上的適用性。此外,對於紊亂區間我們提出交點/橋接鏈模型,此模型可以正確解釋對於P3HT遷移率與分子量以及聚集區塊尺寸間相關變化的實驗結果。最後,在平均遷移率的估算顯示紊亂區由於其較慢的遷移率會限制/拖慢整個系統的遷移率。因此對於提升紊亂區間的遷移率會是提升整體遷移率所必須考慮的一個方向。 | zh_TW |
dc.description.abstract | The regioregular poly-3-hexylthiophene (rr-P3HT) system can reach mobility as high as 0.1 cm2/Vsec all around the polymer based organic field effect transistors (OFETs). Thus, to clarify the factors that affect the charge mobility and the transport mechanisms of the P3HT based OFET systems are of great importance. We use quantum mechanical (QM) methods to interpret the charge mobility and the transport properties of the P3HT molecules along the intrachain and interchain directions. Our approach is illustrated by a hopping transport model, in which we examine the variation of the charge mobility with the torsional angle and the inter-molecular distance between two adjacent thiophene segments. We also simulate the packed and vacuum state P3HT structures via the molecular dynamics (MD) simulations to obtain the detail chain conformation.
The QM and MD results indicate that the main charge transfer route within the P3HT ordered domains is along the intrachains instead of the interchains. The calculation results of the interchain hole mobility is around 10-2 cm2/Vs, which is consistent with the excremental data from the P3HT single fibril. Besides, we proposed a crossing-point/bridging-chain model to illustrate the chain conformation in the disordered regions. This model can explain the mobility evolutions as a function of Mw/nanofibril-width very well. Finally, the average charge mobility approximation suggested that the disordered region is the mobility limitation zone of the whole systems since the large difference of mobility between the ordered and disordered state. One should consider the contributions of the disordered region in improving the total charge mobility in the OFETs system. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T00:23:41Z (GMT). No. of bitstreams: 1 ntu-98-D93549009-1.pdf: 6858544 bytes, checksum: 10da007603606a5238ae056200261bfc (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 1. BACKGROUND 12
1.1. Introduction to conducting polymers 12 1.1.1. Band Theory 14 1.1.2. Issues that affect the energy gap 17 1.2. Introduction to Organic Electronics 21 1.2.1. Structures and operation of FET 22 1.3. Introduction to P3HT 25 1.3.1. Regularity 25 1.3.2. Ordered Packing Structures 27 1.3.3. Molecular Weights and Disordered Region 34 1.4. Motivations 41 2. METHODS 43 2.1. Two state model 43 2.2. Einstein relation 44 2.3. Marcus Theory 45 2.4. Reorganization Energy 47 2.5. Transfer Integral 49 2.6. QM methods 50 3. SYSTEMS 53 3.1. MD systems 55 3.1.1. Packed system, box reduction process 55 3.1.2. Annealing 61 3.1.3. MD Simulation 62 3.2. QM systems 63 4. RESULTS & DISCUSSION 65 4.1. Electronic structures and transfer integral of P3HT 65 4.2. Structure related charge mobility 71 4.3. Stability of the ordered region 77 4.4. Charge transfer in ordered regions 81 4.5. Charge transfer in disordered regions 84 4.5.1. Crossing points 86 4.5.2. Bridging chains 88 4.6. Average charge mobility 92 4.7. Proposed Model 94 5. CONCLUSIONS 96 6. REFERENCES 98 | |
dc.language.iso | en | |
dc.title | 聚(3-己烷基噻吩)之分子組裝行為及其內電荷移轉機制的理論研究 | zh_TW |
dc.title | A Theoretical Study of the Molecular Organization Behavior and the Charge Transfer Mechanisms of Poly-3-hexylthiophene | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-1 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 陳文章,林金福,廖文彬,王立義,蘇安仲,陳正隆,趙奕姼 | |
dc.subject.keyword | 電荷傳遞,載子遷移率,傳遞積分,聚(3-己烷基噻,吩),有機場效電晶體, | zh_TW |
dc.subject.keyword | Charge Transfer,Charge mobility,Transfer Integral,P3HT,OFETs, | en |
dc.relation.page | 105 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-01-31 | |
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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