Silicon Nanomembranes with Hybrid Crystal Orientations and Strain States

Autor: Mark A. Eriksson, Deborah M. Paskiewicz, Hyuk Ju Ryu, Donald E. Savage, Christoph Deneke, Stefan Baunack, Oliver G. Schmidt, Shelley A. Scott, Angelo Malachias, Max G. Lagally
Rok vydání: 2017
Předmět:
Zdroj: ACS applied materialsinterfaces. 9(48)
ISSN: 1944-8252
Popis: Methods to integrate different crystal orientations, strain states, and compositions of semiconductors in planar and preferably flexible configurations may enable nontraditional sensing-, stimulating-, or communication-device applications. We combine crystalline-silicon nanomembranes, patterning, membrane transfer, and epitaxial growth to demonstrate planar arrays of different orientations and strain states of Si in a single membrane, which is then readily transferable to other substrates, including flexible supports. As examples, regions of Si(001) and Si(110) or strained Si(110) are combined to form a multicomponent, single substrate with high-quality narrow interfaces. We perform extensive structural characterization of all interfaces and measure charge-carrier mobilities in different regions of a 2D quilt. The method is readily extendable to include varying compositions or different classes of materials.
Databáze: OpenAIRE