期刊
CHINESE CHEMICAL LETTERS
卷 30, 期 1, 页码 79-82出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2018.04.033
关键词
AgInS2 Quantum dot; Droplet microreactor; Temperature; Fluorescence property
资金
- National Natural Science Foundation of China [21375100, 21775111]
- National Science and Technology Major Project of China [2018ZX10301405]
For the synthesis of AgInS2 quantum dots (QDs), a suitable temperature is extremely important for control of the size, shape and fluorescence properties of QDs. Most of synthesis methods for AgInS2 QDs are based on batch reactors, which bring uneven distribution of temperature, affecting their fluorescence properties and size uniformity. Here we designed a droplet microreactor with a temperature-controllable region, and successfully synthesized water-soluble AgInS2 QDs. By accurately controlling temperature, we also studied how the reaction temperature affected the fluorescence properties of AgInS2 QDs. The results showed that with the increasing of reaction temperature, the QDs size increased and the fluorescence peak constantly red-shifted along with enhanced fluorescence intensity. Based on the droplet microreactor, we could achieve more appropriate reaction condition to synthesize AgInS2 QDs with higher fluorescence quantum yield (QY) and intensity. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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