期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 10, 期 9, 页码 6041-6045出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.2564
关键词
CdSe Nanocrystals; Quantum Dots; Photoluminescence; Up-Scaling; One-Pot Synthesis
类别
资金
- Institute for Microsystems Technology (IMTEK) of the University of Freiburg, Germany
- Landesgraduiertenforderung (LGFG)
- graduate school Micro Energy Harvesting of the German Science Foundation (DFG)
The optical properties of quantum dots strongly depend on the synthesis conditions including the reagent grade of the chemicals. We developed a synthesis set-up allowing the reproducible preparation of quantum dots with a high control over chemical and physical parameters. Here, we report on the effects of the injection speed, the stirring velocity and the reagent grade of the chemicals on the photoluminescence behaviour of CdSe quantum dots. Additionally we compared the commonly used hot-injection method with a novel one-pot approach leading to a slightly larger particle size distribution of the resulting high quality quantum dots in the latter case.
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