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题名: Energy Transfer from Photo-Excited Fluorene Polymers to Single-Walled Carbon Nanotubes
作者: Chen, FuMing1;  Zhang, Wenjing1;  Jia, Mingli2;  Wei, Li3;  Fan, Xiao-Feng4;  Kuo, Jer-Lai4;  Chen, Yuan3;  Chan-Park, Mary B.3;  Xia, Andong2;  Li, Lain-Jong1
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2009-08-20
DOI: 10.1021/jp904431u
卷: 113, 期:33, 页:14946-14952
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The energy transfer from fluorene-based polymers such as poly(9,9-dioctylfluoreny-2,7-diyl) (PFO) and poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(bithiophene)] (F8T2) to single-walled carbon nanotubes (SWNTs) is proved by photoluminescence excitation (PLE) and fluorescence lifetime studies, The excitation wavelength to cause optimal emissions from SWNTs is tunable in a wide wavelength range from 388 to 480 nm (from 488 to 520 nm) depending on the concentration of excess PFO (F8T2) polymers. The energy transfer and hence the excitation wavelength to cause optimal SWNT emissions is govern by the chain conformation and aggregation state of the polymers proximate to SWNT surfaces, The PLE mapping technique, an ideal method to monitor the energy transfer process, is adopted to study the SWNT binding competition between PFO and F8T2. We conclude that SWNTs are preferentially bound with F8T2 polymers. Moreover, the molecular dynamic simulation also agrees well with the experiment results, This study explores the photon conversion process between aromatic polymers; and SWNTs and suggests, a convenient method of adjusting the desired wavelength for the optimal energy conversion, useful for polymer-SWNT composites in optoelectronic applications,
关键词[WOS]: CONJUGATED POLYMERS ;  MOLECULAR-DYNAMICS ;  ORGANIC-SOLVENTS ;  MEMORY DEVICES ;  FLUORESCENCE ;  TRANSISTORS ;  COMPOSITES ;  QUALITY ;  FILMS
语种: 英语
WOS记录号: WOS:000268907500058
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141317
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
2.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
3.Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
4.Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore

Recommended Citation:
Chen, FuMing,Zhang, Wenjing,Jia, Mingli,et al. Energy Transfer from Photo-Excited Fluorene Polymers to Single-Walled Carbon Nanotubes[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(33):14946-14952.
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