Selective area epitaxy of GaAs films using patterned graphene on Ge
Journal Article
·
· Applied Physics Letters
- University of Wisconsin, Madison, WI (United States); Univ. of Wisconsin, Madison, WI (United States)
- University of Wisconsin, Madison, WI (United States)
We demonstrate selective area epitaxy of GaAs films using patterned graphene masks on a Ge (001) substrate. GaAs selectively grows on exposed regions of the Ge substrate for graphene stripe widths of 10 μm. The selectivity is highly dependent on the growth temperature and annealing time, which we explain in terms of temperature dependent sticking coefficients and surface diffusion. The high nucleation selectivity over several micrometers sets constraints on experimental realizations of remote epitaxy.
- Research Organization:
- University of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- Defense Advanced Research Projects Administration (DARPA); National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0016007
- OSTI ID:
- 1979014
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 5 Vol. 120; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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