Title
Synthesis of germanium nanocrystals from solid-state disproportionation of a chloride-derived germania glass
Publication Date
4-29-2019
Department
Ames Laboratory; Chemistry; Chemical and Biological Engineering
Campus Units
Chemical and Biological Engineering, Chemistry, Ames Laboratory
OSTI ID+
1542939
Report Number
IS-J 9953
DOI
10.1039/C9CC01676G
Journal Title
Chemical Communications
Volume Number
55
Issue Number
43
First Page
6102
Last Page
6105
Abstract
Germanium nanocrystals (Ge NCs) have potential to be used in several optoelectronic applications such as photodetectors and light-emitting diodes. Here, we report a solid-state route to synthesizing Ge NCs through thermal disproportionation of a germania (GeOX) glass, which was synthesized by hydrolyzing a GeCl2·dioxane complex. The GeOX glass synthesized in this manner was found to have residual Cl content. The process of nanocrystal nucleation and growth was monitored using powder X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. Compared to existing solid-state routes for synthesizing colloidal Ge NCs, this approach requires fewer steps and is amenable to scaling to large-scale reactions.
DOE Contract Number(s)
AC02-07CH11358
Language
en
Department of Energy Subject Categories
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY
Publisher
Iowa State University Digital Repository, Ames IA (United States)
