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Shin, Tae Joo
UNIST Synchrotron Radiation Research Laboratory
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  • Synchrotron Radiation Application Researches

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Effect of mesoscale crystalline structure on the field-effect mobility of regioregular poly(3-hexyl thiophene) in thin-film transistors

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dc.contributor.author Yang, Hoichang ko
dc.contributor.author Shin, Tae Joo ko
dc.contributor.author Yang, Lin ko
dc.contributor.author Cho, Kilwon ko
dc.contributor.author Ryu, Chang Y. ko
dc.contributor.author Bao, Zhenan ko
dc.date.available 2015-09-04T02:17:13Z -
dc.date.created 2015-09-04 ko
dc.date.issued 2005-04 ko
dc.identifier.citation ADVANCED FUNCTIONAL MATERIALS, v.15, no.4, pp.671 - 676 ko
dc.identifier.issn 1616-301X ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/16632 -
dc.description.abstract Regioregular poly(3-hexyl thiophene) (RR P3HT) is drop-cast to fabricate field-effect transistor (FET) devices from different solvents with different boiling points and solubilities for RR P3HT, such as methylene chloride, toluene, tetrahydrofuran, and chloroform. A Petri dish is used to cover the solution, and it takes less than 30 min for the solvents to evaporate at room temperature. The mesoscale crystalline morphology of RR P3HT thin films can be manipulated from well-dispersed nanofibrils to well-developed spherulites by changing solution processing conditions. The morphological correlation with the charge-carrier mobility in RR P3HT thin-film transistor (TFT) devices is investigated. The TFT devices show charge-carrier mobilities in the range of 10(-4) similar to 10(-2) cm(2) V-1 s(-1) depending on the solvent used, although grazing-incidence X-ray diffraction (GIXD) reveals that all films develop the same pi-pi-stacking orientation, where the < 100 >-axis is normal to the polymer films. By combining results from atomic force microscopy (AFM) and GIXD, it is found that the morphological connectivity of crystalline nanofibrils and the < 100 >-axis orientation distribution of the pi-pi-stacking plane with respect to the film normal play important roles on the charge-carrier mobility of RR P3HT for TFT applications ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher WILEY-V C H VERLAG GMBH ko
dc.title Effect of mesoscale crystalline structure on the field-effect mobility of regioregular poly(3-hexyl thiophene) in thin-film transistors ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-17144417264 ko
dc.identifier.wosid 000228413900018 ko
dc.type.rims ART ko
dc.description.wostc 378 *
dc.description.scopustc 387 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1002/adfm.200400297 ko
dc.identifier.url http://onlinelibrary.wiley.com/doi/10.1002/adfm.200400297/abstract ko
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