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Periodic precipitation of crystalline Ge nanoparticles in Ge-B-SiO{sub 2} thin glass films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.1812369· OSTI ID:20634367
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  1. Department of Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)

Crystalline 20- to 40-nm-diam Ge nanoparticles were precipitated periodically in Ge-B-SiO{sub 2} thin glass films fabricated by the plasma-enhanced chemical vapor deposition method. Such a periodic structure was created by exposure to an interference pattern with a KrF excimer laser (248 nm wavelength) and successive annealing at 600 deg. C. Nanoparticles were precipitated predominantly in the unirradiated region after photoinduced refractive index change was erased completely after annealing up to 500 deg. C.

OSTI ID:
20634367
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 85; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English