期刊
CRYSTALS
卷 9, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/cryst9070368
关键词
CdSe; quantum dots; quantum yield; microfluidic
资金
- Shanghai Pujiang Program [17PJ1402800]
- National Natural Science Foundation of China [21775101]
In this work, we synthesized monodispersed CdSe quantum dots (QDs) by a microfluidic method and via a bulk reaction. The structures of the CdSe QDs were characterized by X-ray powder diffraction (XRD) and high-resolution transmission electron microscopy (HR-TEM). The optical properties of the prepared CdSe QDs were determined using ultraviolet-visible absorption spectroscopy and photoluminescence spectroscopy. The CdSe QDs obtained by the microfluidic method have a faster crystal growth rate and a higher absolute photoluminescence quantum yield than those obtained via the bulk reaction. Additionally, we investigated the growth process of the CdSe QDs with increasing residence times.
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