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Title: Ion beam nanopatterning of III-V semiconductors: Consistency of experimental and simulation trends within a chemistry-driven theory

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep18207· OSTI ID:1240127
 [1];  [2];  [3];  [4];  [5]
  1. Purdue Univ., West Lafayette, IN (United States); Birck Nanotechnology Center, West Lafayette, IN (United States); Drexel Univ., Philadelphia, PA (United States)
  2. Southern Methodist Univ., Dallas, TX (United States)
  3. Boston Univ., Boston, MA (United States)
  4. Purdue Univ., West Lafayette, IN (United States)
  5. Purdue Univ., West Lafayette, IN (United States); Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)

In this study, several proposed mechanisms and theoretical models exist concerning nanostructure evolution on III-V semiconductors (particularly GaSb) via ion beam irradiation. However, making quantitative contact between experiment on the one hand and model-parameter dependent predictions from different theories on the other is usually difficult. In this study, we take a different approach and provide an experimental investigation with a range of targets (GaSb, GaAs, GaP) and ion species (Ne, Ar, Kr, Xe) to determine new parametric trends regarding nanostructure evolution. Concurrently, atomistic simulations using binary collision approximation over the same ion/target combinations were performed to determine parametric trends on several quantities related to existing model. A comparison of experimental and numerical trends reveals that the two are broadly consistent under the assumption that instabilities are driven by chemical instability based on phase separation. Furthermore, the atomistic simulations and a survey of material thermodynamic properties suggest that a plausible microscopic mechanism for this process is an ion-enhanced mobility associated with energy deposition by collision cascades.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-98CH10886
OSTI ID:
1240127
Journal Information:
Scientific Reports, Vol. 5; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

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Cited By (5)

Ion-Beam Sculpting of Nanowires journal November 2017
The influence of projectile ion induced chemistry on surface pattern formation journal July 2016
Ion-induced nanopatterning of silicon: Toward a predictive model journal March 2019
Nanoporous Structure Formation in GaSb, InSb, and Ge by Ion Beam Irradiation under Controlled Point Defect Creation Conditions journal July 2017
Nanoporous Structure Formation on the Surface of InSb by Ion Beam Irradiation journal July 2017

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