Efficient Electronic Energy Transfer in Polymer Nanocomposite Assemblies.
Abstract
Electronic energy transfer plays a critical role in biological photosynthesis, artificial photosynthesis, photovoltaic devices, photocatalysis, and other multichromophore systems and photoinduced processes. Our studies of electronic energy transfer in novel thin film light-harvesting nanocomposite polymer assemblies consisting of a rod-coil copolymer antenna and a conjugated polymer energy trap are presented. Total singlet electronic energy transfer efficiencies as high as 93% were observed at energy trap concentrations as low as 9 mol %. It will be shown that the efficiency of energy transfer can be regulated by the supramolecular structure of the rod-coil copolymer (antenna component). The nanoscale morphology of the nanocomposite polymer systems was characterized by the technique of nonradiative energy transfer, revealing interchromophore distances of 1.0-2.5 nm in the series of materials investigated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 09, 1996
- Accession Number
- ADA314789
Entities
People
- C. -j. Yang
- S. A. Jenekhe
Organizations
- University of Rochester