Nano quantum dot low-temperature synthesis device and method and application thereof in sulfur indium silver quantum dot synthesis

Abstract

The invention relates to the technical field of nano materials, and particularly provides a nano quantum dot low-temperature synthesis device and method and application thereof in AgInS2 quantum dot synthesis. The nano quantum dot low-temperature synthesis device comprises a micro-droplet reactor, wherein a fluid path of the micro-droplet reactor is in a plane S shape; an ultrasonic transducer, which is positioned on one side or two sides of the S-shaped path of the micro-droplet reactor; an injection pump, which is positioned at an inlet of the micro-droplet reactor and is used for injecting liquid into the micro-droplet reactor; and a collecting device, which is positioned at the outlet of the micro-droplet reactor and is used for collecting the nano quantum dots. The problems that in the prior art, a micro-droplet reactor is mainly in a laminar flow flowing state, the mixing mass transfer efficiency is low, the pressure drop is large, precipitation blockage is likely to happen, the use of additional mechanical stirring is limited by the tiny size, continuous high-temperature constant-temperature input is needed, therefore micro-heating and temperature control modules need to be introduced, the device preparation difficulty is greatly increased, and meanwhile, energy waste and environmental pollution are also caused are solved.

Description

Technical field [0001] The present disclosure relates to the field of nano-materials, particularly to provide a quantum dot nano-temperature synthesis apparatus and method and in AgInS 2 Application of quantum dot synthesis. Background technique [0002] Stated here merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Nano technology is currently widely applied, and penetrate into the various disciplines, especially the application in the biomedical and pharmaceutical fields greatly expand the depth and breadth of research. Quantum dots are an important class of fluorescent nanoparticles, due to their unique physical and chemical properties and specific optical properties, made great progress in the biological and medical fields. Since it has the advantage of an adjustable band gap, strong absorption and low preparation cost is expected for the next generation of electronic and optoelectronic devices. By ha...

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Problems solved by technology

[0005] However, the inventors found that the application of the micro-droplet reactor also has relatively large limitations. Because its characteristic size is generally tens to hundreds of microns, its flow state Mainly laminar flow, slow mixed mass transfer rate, large pressure drop, prone to sedimentation and clogging

And the small size also limits the use of external mechanical stirring, it is difficult to find effective means of strengthening

Therefore, the efficiency of micro-droplet reactors for the synthesis of semiconductor nano-quantum dots is low, and continuous high-temperature constant temperature input is required, so micro-heating and temperature control modules need to be introduced, which greatly increases the difficulty of device preparation and also causes energy waste. and environmental pollution

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