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Color-Tunable Highly Bright Photoluminescence of Cadmium-Free Cu-Doped Zn-In-S Nanocrystals and Electroluminescence
Zhang W. J.; Lou Q.; Ji W. Y.; Zhao J. L.; Zhong X. H.
2014
Source PublicationChemistry of Materials
ISSNISBN/0897-4756
Volume26Issue:2Pages:1204-1212
AbstractA series of Cu doped Zn-In-S quantum dots (Cu:Zn-In-S d-dots) were synthesized via a one-pot noninjection synthetic approach by heating up a mixture of corresponding metal acetate salts and sulfur powder together with dodecanethiol in oleylamine media. After overcoating the ZnS shell around the Cu:Zn-In-S d-dot cores directly in the crude reaction solution, the resulting Cu:Zn-In-S/ZnS d-dots show composition-tunable photoluminescence (PL) emission over the entire visible spectral window and extending to the near-infrared spectral window (from 450 to 810 nm), with the highest PL quantum yield (QY) up to 85%. Importantly, the initial high PL QY of the obtained Cu:Zn-In-S/ZnS d-dots in organic media can be preserved when transferred into aqueous media via ligand exchange. Furthermore, electroluminescent devices with good performance (with a maximum luminance of 220 cd m(-2), low turn-on voltages of 3.6 V) have been fabricated with the use of these Cd-free low toxicity yellow-emission Cu:Zn-In-S/ZnS d-dots as an active layer in these QD-based light-emitting diodes.
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/43793
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Zhang W. J.,Lou Q.,Ji W. Y.,et al. Color-Tunable Highly Bright Photoluminescence of Cadmium-Free Cu-Doped Zn-In-S Nanocrystals and Electroluminescence[J]. Chemistry of Materials,2014,26(2):1204-1212.
APA Zhang W. J.,Lou Q.,Ji W. Y.,Zhao J. L.,&Zhong X. H..(2014).Color-Tunable Highly Bright Photoluminescence of Cadmium-Free Cu-Doped Zn-In-S Nanocrystals and Electroluminescence.Chemistry of Materials,26(2),1204-1212.
MLA Zhang W. J.,et al."Color-Tunable Highly Bright Photoluminescence of Cadmium-Free Cu-Doped Zn-In-S Nanocrystals and Electroluminescence".Chemistry of Materials 26.2(2014):1204-1212.
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