Au, Ge and AuGe Nanoparticles Fabricated by Laser Ablation

Journal Article · Wed Feb 01 04:00:00 EST 2012 · Journal of Nanoparticle Research

DOI:https://doi.org/10.1007/s11051-011-0654-y· OSTI ID:1039275

Musaev, O R; Sutter, E; Wrobel, J M; Kruger, M B

A eutectic AuGe target immersed in distilled water was ablated by pulsed ultraviolet laser light. The structure of the ablated material was investigated by high-resolution transmission electron microscopy (HRTEM). The images show formation of nanowire structures of AuGe up to 100 nm in length, with widths of 5-10 nm. These nanostructures have Ge content significantly lower than the target material. Electron diffraction demonstrates that they crystallize in the {alpha}-AuGe structure. For comparison, laser ablation of pure Au and pure Ge targets was also performed under the same conditions. HRTEM shows that Ge forms spherical nanoparticles with a characteristic size of {approx}30 nm. Au forms spherical nanoparticles with diameters of {approx}10 nm. Similar to AuGe, it also forms chainlike structures with substantially lower aspect ratio.

• Research Organization: Brookhaven National Laboratory (BNL) Center for Functional Nanomaterials
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1039275
• Report Number(s): BNL--95420-2012-JA; KC020401H
• Journal Information: Journal of Nanoparticle Research, Journal Name: Journal of Nanoparticle Research Journal Issue: 2 Vol. 14; ISSN 1388-0764
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABLATION
ALLOYS
ASPECT RATIO
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
EUTECTICS
EXPLOSIONS
LASERS
NANOSTRUCTURES
TARGETS
TRANSMISSION ELECTRON MICROSCOPY
WATER
functional nanomaterials