Easily prepared high-quantum-yield CdS quantum dots in water using hyperbranched polyethylenimine as modifier
| Autor: | Jie Mao, Lina Wang, Weisheng Liu, Jun-Na Yao |
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| Rok vydání: | 2008 |
| Předmět: |
Polyethylenimine
Photoluminescence Aqueous solution Quantum yield Nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Condensed Matter::Materials Science chemistry.chemical_compound Colloid and Surface Chemistry chemistry Quantum dot Dendrimer |
| Zdroj: | Journal of Colloid and Interface Science. 319:353-356 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2007.10.027 |
| Popis: | Some research has reported interaction between polyamidoamine dendrimers or polyethylenimine and quantum dots causing a quantum yield decrease of quantum dots. In this work, however, polyethylenimines of different molecular weight that were used to modify CdS quantum dots gave rise to the enhancement of CdS quantum yield to nearly 100%. Herein, we present the synthesis of a kind of easily prepared high-quantum-yield CdS quantum dot in aqueous solution and the study of the interaction between CdS and polyethylenimine. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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