Ion irradiation induced hollow and sandwiched nanoparticles

Journal Article · Tue Apr 15 04:00:00 EDT 2008 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2903424· OSTI ID:21137172

Feng, Ren; Guangxu, Cai; Xiangheng, Xiao; Lixia, Fan; Chang, Liu; Dejun, Fu; Jianbo, Wang; Changzhong, Jiang ^[1]

---

1. Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, Wuhan University, Wuhan 430072 (China) and Department of Physics, Wuhan University, Wuhan 430072 (China)

We report on the fabrication of hollow and sandwiched nanoparticles by ion irradiation. Ag nanoparticles embedded in silica were irradiated by N{sup +}, Si{sup +}, Ar{sup +}, and Cu{sup +} ions at 300 keV to a fluence of 5x10{sup 16} ions/cm{sup 2}, by Cu{sup +} ions at varying energies from 110 to 500 keV to a fluence of 5x10{sup 16} ions/cm{sup 2}, and by Cu{sup +} ions at 400 keV to fluences varied from 1x10{sup 16} to 1x10{sup 17} ions/cm{sup 2}. The size of the irradiation-induced nanovoids increases with increasing ion mass and energy. The formation of nanovoids depends on the electronic and nuclear energy loss of the irradiation ions. The formation of irradiation-induced sandwiched nanoparticles is because of the capture of knocked-out Ag atoms from nanoshells by nanovoids. The size of the inner nanoparticles within the sandwiched structure increases with increasing fluence.

• OSTI ID: 21137172
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 103; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARGON IONS
COPPER IONS
ION BEAMS
IRRADIATION
KEV RANGE 100-1000
NANOSTRUCTURES
NITROGEN IONS
PARTICLES
SILICA
SILICON IONS
SILVER