Temperature dependence of exciton diffusion in a small-molecule organic semiconductor processed with and without additive.
basic_science · Level V
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- Record sourced from PubMed, PMID 25775936.
- Also identified by DOI 10.1002/adma.201404590.
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Abstract
The temperature dependence of exciton diffusion in a small-molecule organic semiconductor processed with and without additive is investigated. As-cast and 1,8-diiodooctane-processed films yield exciton diffusion lengths of 6.8 and 4.9 nm, respectively. Using a Monte Carlo simulation, it is shown that processing with 1,8-diiodooctane increases the excitonic trap density, which directly reduces the exciton diffusion length.