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Nano Research 2022, 15(10): 9647-9653 https://doi.org/10.1007/s12274-022-4571-4
Research Article | Issue | Published: 10 June 2022

Microreactor platform for continuous synthesis of electronic doped quantum dots

Show Author's Information Yuxi Li1,  Yanbin Li2,  Xinyuan Li1,3( ),  Tailei Hou1,  Chen Qiao1,  Yunpeng Tai1,  Xiaole Gu1,  Di Zhao1,3,  Le Sang3( ),  Jiatao Zhang1,3( )
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
Keywords:
quantum dots, microreactor, continuous synthesis, scale-up
Topics:
Synthesis
Cite this article:
Li Y, Li Y, Li X, et al. Microreactor platform for continuous synthesis of electronic doped quantum dots. Nano Research, 2022, 15(10): 9647-9653. https://doi.org/10.1007/s12274-022-4571-4
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Abstract Full text Electronic supplementary material About this article

Electronic doped quantum dots (Ed-QDs), by heterovalent cations doping, have held promise for future device concepts in optoelectronic and spin-based technologies due to their broadband Stokes-shifted luminescence, enhanced electrical transport and tailored magnetic behavior. Considering their scale-up requirement and the low yielding of several current colloidal synthesis methods, a stable and efficient bulk synthesis strategy must be developed. Microreactors have long been recognized as an effective platform for producing nanomaterials and fabricating large-scale structures. Here, we chose microreactor platform for continuous synthesis of Ed-QDs in the air at low temperatures. By original reverse cation exchange reaction mechanism together with varying the kinetic conditions of microreactor platform, such as liquid flow rate, the Ag doped CdS (CdS:Ag) Ed-QDs with higher yield have been synthesized successfully due to the continuous synthesis advantages with a high degree of size selectivity. Enabled by microreactor engineering simulation, this research not only provides a new synthetic method towards scale-up production but also enables to improve chemical mass production of similar functional QDs for optical devices, bio-imaging and innovative information processing applications.


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Abstract
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Electronic supplementary material
About this article

Microreactor platform for continuous synthesis of electronic doped quantum dots

Show Author's information Yuxi Li1, Yanbin Li2, Xinyuan Li1,3( ), Tailei Hou1, Chen Qiao1, Yunpeng Tai1, Xiaole Gu1, Di Zhao1,3, Le Sang3( ), Jiatao Zhang1,3( )
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China

Abstract

Electronic doped quantum dots (Ed-QDs), by heterovalent cations doping, have held promise for future device concepts in optoelectronic and spin-based technologies due to their broadband Stokes-shifted luminescence, enhanced electrical transport and tailored magnetic behavior. Considering their scale-up requirement and the low yielding of several current colloidal synthesis methods, a stable and efficient bulk synthesis strategy must be developed. Microreactors have long been recognized as an effective platform for producing nanomaterials and fabricating large-scale structures. Here, we chose microreactor platform for continuous synthesis of Ed-QDs in the air at low temperatures. By original reverse cation exchange reaction mechanism together with varying the kinetic conditions of microreactor platform, such as liquid flow rate, the Ag doped CdS (CdS:Ag) Ed-QDs with higher yield have been synthesized successfully due to the continuous synthesis advantages with a high degree of size selectivity. Enabled by microreactor engineering simulation, this research not only provides a new synthetic method towards scale-up production but also enables to improve chemical mass production of similar functional QDs for optical devices, bio-imaging and innovative information processing applications.

Keywords: quantum dots, microreactor, continuous synthesis, scale-up

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Publication history
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Acknowledgements

Publication history

Received: 05 May 2022
Revised: 21 May 2022
Accepted: 21 May 2022
Published: 10 June 2022
Issue date: October 2022

Copyright

© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 51872030, 22105116, 21908126, 51631001, 51902023, and 51702016) and Beijing Institute of Technology Research Fund Program for Young Scholars. The authors acknowledge the critical and quantity testing work supported by Beijing Zhongkebaice Technology Service Co., Ltd.

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