Swift heavy ion irradiation of ZnO nanoparticles embedded in silica: Radiation-induced deoxidation and shape elongation

Journal Article · Mon Nov 11 04:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4829475· OSTI ID:22217810

Amekura, H.; Tsuya, D.; Mitsuishi, K.; Nakayama, Y. ^[1]; Okubo, N.; Ishikawa, N. ^[2]; Singh, U. B.; Khan, S. A.; Avasthi, D. K. ^[3]; Mohapatra, S. ^[4]

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1. National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0003 (Japan)
2. Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki (Japan)
3. Inter-University Accelerator Centre (IUAC), New Delhi (India)
4. Guru Gobind Singh Indraprastha University, New Delhi (India)

ZnO nanoparticles (NPs) embedded in amorphous SiO{sub 2} were irradiated with 200 MeV Xe{sup 14+} swift heavy ions (SHIs) to a fluence of 5.0 × 10{sup 13} ions/cm{sup 2}. Optical linear dichroism was induced in the samples by the irradiation, indicating shape transformation of the NPs from spheres to anisotropic ones. Transmission electron microscopy observations revealed that some NPs were elongated to prolate shapes; the elongated NPs consisted not of ZnO but of Zn metal. The SHI irradiation induced deoxidation of small ZnO NPs and successive shape elongation of the deoxidized metal NPs.

• OSTI ID: 22217810
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 20 Vol. 103; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
AMORPHOUS STATE
ANISOTROPY
ELONGATION
HEAVY IONS
ION BEAMS
IRRADIATION
NANOSTRUCTURES
REDUCTION
SEMICONDUCTOR MATERIALS
SHAPE
SILICA
SILICON OXIDES
TRANSMISSION ELECTRON MICROSCOPY
ZINC OXIDES