Bifunctional star-burst amorphous molecular materials for OLEDs: achieving highly efficient solid-state luminescence and carrier transport induced by spontaneous molecular orientation.
basic_science · Level V
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- Record sourced from PubMed, PMID 23401305.
- Also identified by DOI 10.1002/adma.201204902.
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Abstract
Bifunctional star-burst amorphous molecular materials displaying both efficient solid-state luminescence and high hole-transport properties are developed in this study. A high external electroluminescence quantum efficiency up to 5.9% is attained in OLEDs employing the developed amorphous materials. It is revealed that the spontaneous horizontal orientation of these light-emitting molecules in their molecular-condensed states leads to a remarkable enhancement of the electroluminescence efficiencies and carrier-transport properties.
Medical subject headings
- Lighting
- Luminescent Measurements
- Organic Chemicals
- Semiconductors