Projektnummer

0068721

Zusammenfassung

If it was possible to produce new forms of elemental silicon (Si) and germanium (Ge), promising candidates for direct band-gap semiconductors or battery-electrode materials would become available. Non-conventional low temperature preparation methods of intermetallic phases have provided access to a variety of metastable crystalline allotropes of Si and Ge. Although the methods have become increasingly elaborate, the preparation of the metastable allotropes on materials scale still remains hardly feasible. Neither the preparation of the sensitive precursors nor their conversion with the...