Light-assisted deep-trapping of holes in conjugated polymers.
basic_science · Level V
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- Record sourced from PubMed, PMID 19171882.
- Also identified by DOI 10.1073/pnas.0811900106 and PMC identifier 2635799.
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Abstract
The injection of positive charge carriers (holes) into a single conjugated polymer chain was observed to be light-assisted. This effect may underlie critical, poorly understood organic electronic device phenomena such as the build-up of functional deeply trapped charge layers in polymer light emitting diodes. The charging/discharging dynamics were investigated indirectly by a variety of single molecule electro-optical spectroscopic techniques, including an "image-capture" approach.