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What is Microwave-assisted Synthesis of Quantum Dots about?

There is lesser penetration depth in some cases. 2. Metallic substrates or metallic reagents cannot be used for synthesis. 3. Only polar solvents are used, which can interact with the MW. 4. Heating reactions above boiling point of the solvent can generate high pressure, which may cause an explosion. 5. In some cases, the yields are not reproducible because of uneven heating, particularly while using a domestic MW oven. Synthesis of core-type quantum dots Core-type QDs are made up of a single material, basically a metallic chalcogenide like CdTe, CdS, CdSe, PbS, SnO 2 , etc. The existing oil-bath heating techniques transfer heat internally from the source (heat), while radiowaves in MW-mediated heating exactly pierce the wall of the vessel to excite polar units like alcohol, water, and fatty acids. Polar molecules absorb this radiation and transform it directly into nuclear motion to convert it into heat. The complete procedure is different from ordinary oil-bath heating since the heat is generated via a native domain by exciting molecules/atoms rather than FIGURE 7.1 Advantages of microwave-assisted synthesis.Microwave-assisted synthesis of quantum dots Chapter | 7 117

Author

Chetna Ameta; Yogeshwari Vyas; Priyanka Chundawat; Dharmendra

Publisher

Elsevier

Published

2023

Language

EN