Summary of the technology
Developed a germanium-based precursor with hydrogen peroxide to obtain a stable and reactive germanium-oxide precursor that is soluble at a concentration 20x as high as classically-prepared GeOx (aq)
Project ID : 9-2018-6695
Chemistry & Materials
Process chemistry, semiconductors, IR window, germanium oxide, solubility, inorganic salts, thin films, green chemistry
Current development stage
General list: TRL7System prototype demonstration
Hydrogen peroxide is a growing and promising modifier for advanced material preparation since it can be easily removed by thermal decomposition without the use of solvents or leaving residual contaminants. The researchers have developed a process to obtain peroxy compounds of p-block elements that utilize the benefits of hydrogen peroxide to generate industrially-relevant chemical precursors. Specifically, germanium compounds are important materials but their preparation on an industrial scale is marred by challenges. The solubility is too low for wet deposition approaches and the solution is usually prepared via wasteful low-yield routes.
- New route to generate a highly soluble form of germanium oxide
- Highly stable precursor that can be stoichiometrically converted easily to germanium oxide
- The highly reactive germanium-oxide reacts like a salt rather than an oxide reagent and can easily be exploited for other germanium compounds
In applications where a germanium oxide aqueous solution is desired then this approach generates an aqueous solution with a germanium oxide concentration that is 20x the solubility limit in water for classically prepared germanium oxide. Additionally, the germanium oxide generated via this route reacts rapidly with acids and bases and is a versatile reagent for producing germanium compounds.
SCOUTING, IDEATION, AND TECHNOLOGY EVALUATION
HUJI, Faculty of Science
The Institute of Chemistry