Determining exciton bandwidth and film microstructure in polythiophene films using linear absorption spectroscopy
By Jenny Clark, Jui-Fen Chang, F. Spano, R. Friend, Carlos Silva. 2009
544 citations recorded by the source corpus.
We analyze the linear absorption spectrum of regioregular poly(3-hexylthiophene) films spun from a variety of solvents to probe directly the film microstructure and how it depends on processing conditions. We estimate the exciton bandwidth and the percentage of the film composed of aggregates quantitatively using a weakly interacting H-aggregate model. This provides a description of the degree and quality of crystallites within the film and is in turn correlated with thin-film field-effect transistor characteristics.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/3addff36fb8b5a302b9bad7f4b0561168f137458
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
In Polymers and Plastics
Citations in the corpus
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