Photophysical Studies of Spin-Cast Polymer Films

摘要

Spin casting is a commonly used technique for producing thin, uniform polymer films, especially for semiconductor fabrication. There has been little attention given to the response of the polymers at the molecular level, however. We have reviewed previous literature on the spin casting process, as well as pertinent aspects of solvent cast and oriented polymer films. Our experimental work has focused on the use of excimer fluorescence to elucidate polymer chain conformation and fluorescent probe environment. The effects of spin speed and polymer molecular weight on spin cast polystyrene films and subsequent annealing behavior have been studied. In addition, the aggregation of a small molecule dye (pyrene) in novolac films was investigated. Reprints. (jes)