Kim, J.-S.; Choi, J.; Choi, W.K. Size-Controlled ZnO Nanoparticles Synthesized with Thioacetamide and Formation of ZnS Quantum Dots. Electron. Mater.2023, 4, 139-147.
Kim, J.-S.; Choi, J.; Choi, W.K. Size-Controlled ZnO Nanoparticles Synthesized with Thioacetamide and Formation of ZnS Quantum Dots. Electron. Mater. 2023, 4, 139-147.
Kim, J.-S.; Choi, J.; Choi, W.K. Size-Controlled ZnO Nanoparticles Synthesized with Thioacetamide and Formation of ZnS Quantum Dots. Electron. Mater.2023, 4, 139-147.
Kim, J.-S.; Choi, J.; Choi, W.K. Size-Controlled ZnO Nanoparticles Synthesized with Thioacetamide and Formation of ZnS Quantum Dots. Electron. Mater. 2023, 4, 139-147.
Abstract
In this work, we report on the first attempt using size-controlled ZnO nanoparticles (NPs) to analyze role of thioacetamide (TAA) in forming ZnS nanostructures from ZnO. The size-controlled B(blue)_, G(green)_, Y(yellow)_ZnO QDs, and NC (nanocrystalline)_ZnO NPs were synthesized by sol-gel process as well as hydrothermal method, respectively and then reacted with an ethanolic TAA solution as sulfur source. After reacting with TAA, the formation of ZnS QDs was observed over time. The chemical reactions were identified using X-ray diffraction (XRD), Transmission Electron Microscope (TEM), UV-vis spectroscopy, and Photoluminescence (PL). All results indicate that ZnS formation is due to direct crystal growth and/or chemical conversion of ZnO to ZnS. Our results enable a broader understanding of the synthetic mechanisms involved in the use of TAA as a sulfur source in forming ZnS nanostructures from ZnO.
Keywords
size-controlled ZnO nanoparticles; the formation of ZnS nanoparticles; quantum dots; sol-gel; hydrothermal; ethanolic thioactamide; crystal growth; chemical conversion
Subject
Chemistry and Materials Science, Electronic, Optical and Magnetic Materials
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
