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Open AccessArticle

Synthesis and Study of CdSe QDs by a Microfluidic Method and via a Bulk Reaction

Materials Genome Institute, Shanghai University, Chengzhong Road, Shanghai 201800, China
ETH Zurich, 8093 Zurich, Switzerland
The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Crystals 2019, 9(7), 368;
Received: 11 June 2019 / Revised: 15 July 2019 / Accepted: 17 July 2019 / Published: 18 July 2019
(This article belongs to the Special Issue Nanowires and Quantum Dots for IoT Applications)
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. View Full-Text
Keywords: CdSe; quantum dots; quantum yield; microfluidic CdSe; quantum dots; quantum yield; microfluidic
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MDPI and ACS Style

Liu, J.; Gu, Y.; Wu, Q.; Wang, X.; Zhao, L.; deMello, A.; Wen, W.; Tong, R.; Gong, X. Synthesis and Study of CdSe QDs by a Microfluidic Method and via a Bulk Reaction. Crystals 2019, 9, 368.

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