{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["14(1)"],"submitter":["Chen X"],"funding":["the National Key Research and Development Program of China"],"pubmed_abstract":["To industrialize printed full-color displays based on quantum-dot light-emitting diodes, one must explore the degradation mechanism and improve the operational stability of blue electroluminescence. Here, we report that although state-of-the-art blue quantum dots, with monotonically-graded core/shell/shell structures, feature near-unity photoluminescence quantum efficiency and efficient charge injection, the significant surface-bulk coupling at the quantum-dot level, revealed by the abnormal dipolar excited state, magnifies the impact of surface localized charges and limits operational lifetimes. Inspired by this, we propose blue quantum dots with a large core and an intermediate shell featuring nonmonotonically-graded energy levels. This strategy significantly reduces surface-bulk couplin"],"journal":["Nature communications"],"pagination":["284"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9845229"],"repository":["biostudies-literature"],"pubmed_title":["Blue light-emitting diodes based on colloidal quantum dots with reduced surface-bulk coupling."],"pmcid":["PMC9845229"],"pubmed_authors":["Zhou L","Wu L","Chen M","Lin X","Li R","Sun X","Yan X","Hou W","Yang Y","Cao W","Zhang X","Chen X","Chen S"],"additional_accession":[]},"is_claimable":false,"name":"Blue light-emitting diodes based on colloidal quantum dots with reduced surface-bulk coupling.","description":"To industrialize printed full-color displays based on quantum-dot light-emitting diodes, one must explore the degradation mechanism and improve the operational stability of blue electroluminescence. Here, we report that although state-of-the-art blue quantum dots, with monotonically-graded core/shell/shell structures, feature near-unity photoluminescence quantum efficiency and efficient charge injection, the significant surface-bulk coupling at the quantum-dot level, revealed by the abnormal dipolar excited state, magnifies the impact of surface localized charges and limits operational lifetimes. Inspired by this, we propose blue quantum dots with a large core and an intermediate shell featuring nonmonotonically-graded energy levels. This strategy significantly reduces surface-bulk couplin","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Jan","modification":"2026-06-06T20:24:12.211Z","creation":"2025-04-19T12:37:27.293Z"},"accession":"S-EPMC9845229","cross_references":{"pubmed":["36650161"],"doi":["10.1038/s41467-023-35954-x"]}}