Zn and ZnO nanoparticles fabricated by ion implantation combined with thermal oxidation, and the defect-free luminescence | Zendy

H. Amekura | Zendy; N. Umeda | Zendy; Yoshiki Sakuma | Zendy; О.А. Plaksin | Zendy; Yoshihiko Takeda | Zendy; Naoki Kishimoto | Zendy; Ch. Buchal | Zendy

Open Access

Zn and ZnO nanoparticles fabricated by ion implantation combined with thermal oxidation, and the defect-free luminescence

Author(s) -

H. Amekura,

N. Umeda,

Yoshiki Sakuma,

О.А. Plaksin,

Yoshihiko Takeda,

Naoki Kishimoto,

Ch. Buchal

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2193327

Subject(s) - photoluminescence , materials science , annealing (glass) , luminescence , nanoparticle , ion implantation , zinc , exciton , metal , thermal treatment , thermal oxidation , ion , nanotechnology , chemical engineering , silicon , oxygen , inorganic chemistry , photochemistry , optoelectronics , metallurgy , chemistry , composite material , physics , organic chemistry , quantum mechanics , engineering

Silica glass implanted with Zn ions of 60 keV to 1.0x10(17) ions/cm(2) was annealed in oxygen gas to form ZnO nanoparticles (NPs). In as-implanted state, the implanted Zn atoms form Zn metallic NPs inside of the silica. After annealing at 600 degrees C, ZnO NPs form on the surface, while Zn metallic NPs still remain in the deep region. At 700 degrees C, most of Zn atoms move to the surface to form the droplet-shaped ZnO NPs which show two photoluminescence bands, i.e., an exciton band at 375 nm and a defect band at similar to 500 nm. The defect band almost disappears in the samples annealed at 600 degrees C, which include both ZnO NPs and Zn NPs

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