Electro Optical Properties of Copolymer Blends: Lasing, Electroluminescence and Photophysics
Abstract
In this grant period we have continued our studies of the synthesis, characterization and device fabrication of electro-optically active chromophoric macromolecules. The systems studied focused on novel conjugated main chain structures with high photoluminescent and electroluminescent quantum yields. The structures incorporated fluorene containing moieties, ethynylene bonds, terphenylene derivatives, meta and ortho variants of the paraphenylene unit, and a number of derivatized phenyl units either alone or in combination. In most cases the photophysical properties of the new materials were extensively studied. A new method to prepare efficient anode surfaces for devices using indium tin oxide nanopartides was developed. Over 25 publications dealing with electrooptical polymers were published in the grant period. We have also continued our study of the coilglobule transition in solvated polar macromolecules focusing on temperature regimes just below the e-point. Other studies completed in the grant period included those involving surface modifications of polymer films by ion implantation orientated towards enhanced permselectivity, and a continuation of research studying ternary polymer blends in which one or more constituents is a copolymer. Altogether, some 36 manuscripts were published in the grant period, with a further 4 in press.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 2006
- Accession Number
- ADA448597
Entities
People
- Frank E Karasz
Organizations
- University of Massachusetts Amherst