Highly luminescent (Zn,Cd)Te/CdSe colloidal heteronanowires with tunable electron-hole overlap.
basic_science · Level V
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- Record sourced from PubMed, PMID 22214477.
- Also identified by DOI 10.1021/nl203695m.
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Abstract
We report the synthesis of ultranarrow (Zn,Cd)Te/CdSe colloidal heteronanowires, using ZnTe magic size clusters as seeds. The wire formation starts with a partial Zn for Cd cation exchange, followed by self-organization into segmented heteronanowires. Further growth occurs by inclusion of CdSe. The heteronanowires emit in the 530 to 760 nm range with high quantum yields. The electron-hole overlap decreases with increasing CdSe volume fraction, allowing the optical properties to be controlled by adjusting the heteronanowire composition.
Medical subject headings
- Cadmium Compounds
- Chromium
- Luminescence
- Nanowires
- Selenium Compounds
- Tellurium
- Zinc