Citation: Ji Wang, Hao-Tian Ma, Liang-Jun Pan, Li Zhang, Zhi-Ling Zhang. Integrated synthesis and ripening of AgInS₂ QDs in droplet microreactors: An update fluorescence regulating via suitable temperature combination[J]. Chinese Chemical Letters, ;2022, 33(8): 3767-3771. doi: 10.1016/j.cclet.2021.11.022 shu

Integrated synthesis and ripening of AgInS₂ QDs in droplet microreactors: An update fluorescence regulating via suitable temperature combination

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

zlzhang@whu.edu.cn

Received Date: 17 July 2021
Revised Date: 20 October 2021
Accepted Date: 4 November 2021
Available Online: 11 November 2021

Figures(5)

Aqueous phase synthesized ternary I–III–VI₂ Quantum dots (QDs) are getting more and more attention in biology researches, for their good biocompatibility and easy-to-adjust fluorescence properties. However, the quantum yield (QY) of these aqueous phase synthesized QDs are often pretty low, which seriously hindered their further applications in this field. In general, the ripening of the QDs helps to enhance their QY, closely related to the ripening temperature. But it is still hard to precisely control the fluorescence performance of the QDs products, due to the difficulties in precise temperature control and cumbersome temperature adjusting operations in batch reactors. Here we proposed an integrated droplet microfluidic chip for the automated and successive AgInS₂ QDs synthesis and ripening, with both temperatures controlled independently, precisely but easily. Taking advantage of the space-time transformation of the droplet microfluidic chips, the suitable temperature combination for AgInS₂ QDs synthesis and ripening was studied, and the high-performance AgInS₂ QDs were obtained. In addition, the reason for the decrease of QY of AgInS₂ QDs at higher ripening temperature was also explored.
- AgInS₂,
- Quantum dot,
- Ripening,
- Droplet microreactor,
- Temperature control
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Integrated synthesis and ripening of AgInS2 QDs in droplet microreactors: An update fluorescence regulating via suitable temperature combination

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通讯作者: 陈斌, bchen63@163.com

Integrated synthesis and ripening of AgInS₂ QDs in droplet microreactors: An update fluorescence regulating via suitable temperature combination