气候变化领域集成服务门户(CCPortal): Control of energy transfer in oriented conjugated polymer-mesoporous silica composites

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DOI	10.1126/science.288.5466.652
	Control of energy transfer in oriented conjugated polymer-mesoporous silica composites
	Nguyen T.-Q.; Wu J.; Doan V.; Schwartz B.J.; Tolbert S.H.
发表日期	2000
ISSN	0036-8075
起始页码	652
结束页码	656
卷号	288 期号:5466
英文摘要	Nanoscale architecture was used to control energy transfer in semiconducting polymers embedded in the channels of oriented, hexagonal nanoporous silica. Polarized femtosecond spectroscopies show that excitations migrate unidirectionally from aggregated, randomly oriented polymer segments outside the pores to isolated, aligned polymer chains within the pores. Energy migration along the conjugated polymer backbone occurred more slowly than Forster energy transfer between polymer chains. The different intrachain and interchain energy transfer time scales explain the behavior of conjugated polymers in a range of solution environments. The results provide insights for optimizing nanostructured materials for use in optoelectronic devices.
英文关键词	silicon dioxide; article; electronics; energy transfer; optics; particle size; polymerization; priority journal
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244876
作者单位	Dept. of Chemistry and Biochemistry, Univ. of California, Los Angeles, Los Angeles, CA 90095-1569, United States
推荐引用方式 GB/T 7714	Nguyen T.-Q.,Wu J.,Doan V.,et al. Control of energy transfer in oriented conjugated polymer-mesoporous silica composites[J],2000,288(5466).
APA	Nguyen T.-Q.,Wu J.,Doan V.,Schwartz B.J.,&Tolbert S.H..(2000).Control of energy transfer in oriented conjugated polymer-mesoporous silica composites.Science,288(5466).
MLA	Nguyen T.-Q.,et al."Control of energy transfer in oriented conjugated polymer-mesoporous silica composites".Science 288.5466(2000).