Formation and evolution of ripples on ion-irradiated semiconductor surfaces
- Univ. of Michigan, Ann Arbor, MI (United States)
We have examined the formation and evolution of ripples on focused-ion-beam (FIB) irradiated compound semiconductor surfaces. Using initially normal-incidence Ga+ FIB irradiation of InSb, we tuned the local beam incidence angle (θeff) by varying the pitch and/or dwell time. For single-pass FIB irradiation, increasing θeff induces morphological evolution from pits and islands to ripples to featureless surfaces. Multiple-pass FIB irradiation of the rippled surfaces at a fixed θeff leads to island formation on the ripple crests, followed by nanorod (NR) growth. Finally, this ripple-NR transition provides an alternative approach for achieving dense arrays of NRs.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Solar and Thermal Energy Conversion (CSTEC); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0000957
- OSTI ID:
- 1383302
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 5; Related Information: CSTEC partners with University of Michigan (lead); Kent State University; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 14 works
Citation information provided by
Web of Science
Web of Science
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
solar (photovoltaic)
solar (thermal)
phonons
thermal conductivity
thermoelectric
electrodes - solar
defects
charge transport
materials and chemistry by design
optics
synthesis (novel materials)
synthesis (self-assembly)
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
solar (photovoltaic)
solar (thermal)
phonons
thermal conductivity
thermoelectric
electrodes - solar
defects
charge transport
materials and chemistry by design
optics
synthesis (novel materials)
synthesis (self-assembly)