Control of Energy Transfer in Oriented Conjugated Polymer-Mesoporous Silica Composites
10.1126/science.288.5466.652
Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

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 Förster 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.

Bibliography

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), 652–656.

Authors 5
  1. Thuc-Quyen Nguyen (first)
  2. Junjun Wu (additional)
  3. Vinh Doan (additional)
  4. Benjamin J. Schwartz (additional)
  5. Sarah H. Tolbert (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 5:48 a.m.)
Deposited 1 year, 7 months ago (Jan. 13, 2024, 5:11 a.m.)
Indexed 3 weeks, 1 day ago (Aug. 7, 2025, 4:52 a.m.)
Issued 25 years, 4 months ago (April 28, 2000)
Published 25 years, 4 months ago (April 28, 2000)
Published Print 25 years, 4 months ago (April 28, 2000)
Funders 0

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@article{Nguyen_2000, title={Control of Energy Transfer in Oriented Conjugated Polymer-Mesoporous Silica Composites}, volume={288}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.288.5466.652}, DOI={10.1126/science.288.5466.652}, number={5466}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Nguyen, Thuc-Quyen and Wu, Junjun and Doan, Vinh and Schwartz, Benjamin J. and Tolbert, Sarah H.}, year={2000}, month=apr, pages={652–656} }