Synthesis and Surface Functionalization of Hydride-Terminated Ge Nanocrystals Obtained from the Thermal Treatment of Ge(OH)2
| Autor: | Morteza Javadi, Regina Sinelnikov, Jonathan G. C. Veinot, Darren Picard, Mary A. B. Narreto, Frank A. Hegmann |
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| Rok vydání: | 2017 |
| Předmět: |
Hydride
Oxide chemistry.chemical_element Nanotechnology Germanium Disproportionation 02 engineering and technology Surfaces and Interfaces Thermal treatment 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 7. Clean energy 01 natural sciences Isotropic etching 0104 chemical sciences chemistry.chemical_compound Chemical engineering chemistry Nanocrystal Electrochemistry Surface modification General Materials Science 0210 nano-technology Spectroscopy |
| Zdroj: | Langmuir. 33:8757-8765 |
| ISSN: | 1520-5827 0743-7463 |
| Popis: | The synthesis of germanium nanocrystals (GeNCs) with well-defined surface chemistry is of considerable interest because of their potential applications in the optoelectronic, battery, and semiconductor industries. Modifying and tailoring GeNC surface chemistry provides an avenue by which reactivity, environmental compatibility (e.g., solubility, resistance to oxidation), and electronic properties may be tailored. Hydride-terminated GeNCs (H-GeNCs) are of particular interest because the reactivity of surface Ge–H bonds toward alkenes and alkynes via hydrogermylation affords the potential for convenient modification; however, these reactions and their scope have not been widely explored. This report describes a straightforward route for preparing a GeNC/GeO2 composite via disproportionation of heretofore-unexplored Ge(II) oxide-based precursor from which the H-GeNCs were freed by subsequently chemical etching. The H-GeNCs were derivatized using a series of hydrogermylation approaches (i.e., thermally activa... |
| Databáze: | OpenAIRE |
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