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Open AccessArticle

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

1
Materials Genome Institute, Shanghai University, Chengzhong Road, Shanghai 201800, China
2
ETH Zurich, 8093 Zurich, Switzerland
3
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; https://doi.org/10.3390/cryst9070368
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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