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dc.contributor.authorLee, Yu Hsienen_US
dc.contributor.authorYabushita, Atsushien_US
dc.contributor.authorHsu, Chain Shuen_US
dc.contributor.authorYang, Sheng Hsiungen_US
dc.contributor.authorIwakura, Izumien_US
dc.contributor.authorLuo, Chih Weien_US
dc.contributor.authorWu, Kaung Hsiungen_US
dc.contributor.authorKobayashi, Takayoshien_US
dc.date.accessioned2014-12-08T15:48:15Z-
dc.date.available2014-12-08T15:48:15Z-
dc.date.issued2010-09-30en_US
dc.identifier.issn0009-2614en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.cplett.2010.08.036en_US
dc.identifier.urihttp://hdl.handle.net/11536/32168-
dc.description.abstractUltrafast pump-probe spectroscopy of poly(3-hexylthiophene) (P3HT) films was performed using a 9-fs laser and a broadband lock-in detection system. The fast geometrical relaxation (GR) time was attributed to the transition from a free exciton (FE) to form a bound polaron pair (BPP), and the time constant was estimated to be tau(GR) = 90 +/- 2 fs. The relaxation time constant of BPP was determined as tau(BPP) = 710 +/- 40 fs. The measurement of pump-power dependence enabled us to distinguish the defect trapping process of BPPs from other parallel decay processes and to determine the defect concentration of a P3HT thin film. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.titleUltrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentrationen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.cplett.2010.08.036en_US
dc.identifier.journalCHEMICAL PHYSICS LETTERSen_US
dc.citation.volume498en_US
dc.citation.issue1-3en_US
dc.citation.spage71en_US
dc.citation.epage76en_US
dc.contributor.department照明與能源光電研究所zh_TW
dc.contributor.department電子物理學系zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentInstitute of Lighting and Energy Photonicsen_US
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000282161800015-
dc.citation.woscount5-
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