Influence of shell thickness on the performance of light-emitting devices based on CdSe/Zn1-X CdX S core/shell heterostructured quantum dots.
basic_science · Level V
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- Record sourced from PubMed, PMID 25381683.
- Also identified by DOI 10.1002/adma.201403620.
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Abstract
CdSe/Zn1-X CdX S core/shell heterostructured quantum dots (QDs) with varying shell thicknesses are studied as the active material in a series of electroluminescent devices. "Giant" CdSe/Zn1-X CdX S QDs (e.g., CdSe core radius of 2 nm and Zn1-X CdX S shell thickness of 6.3 nm) demonstrate a high device efficiency (peak EQE = 7.4%) and a record-high brightness (>100 000 cd m(-2) ) of deep-red emission, along with improved device stability.