The structural and optical properties of gallium arsenic nanoparticles | Zendy

J. J. Hung | Zendy; SiChen Lee | Zendy; ChihTa Chia | Zendy

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The structural and optical properties of gallium arsenic nanoparticles

Author(s) -

J. J. Hung,

SiChen Lee,

ChihTa Chia

Publication year - 2004

Publication title -

journal of nanoparticle research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.453

H-Index - 121

eISSN - 1572-896X

pISSN - 1388-0764

DOI - 10.1007/s11051-004-8917-5

Subject(s) - materials science , gallium , arsenic , nanoparticle , raman spectroscopy , amorphous solid , transmission electron microscopy , torr , evaporation , analytical chemistry (journal) , nanotechnology , chemical engineering , optics , crystallography , metallurgy , chromatography , chemistry , physics , thermodynamics , engineering

Spherical gallium arsenic nanoparticles prepared by thermal evaporation method have been fabricated successfully. The structural and optical properties of GaAs nanoparticles are studied in detail. It is found that while the growth pressure rises from 0.4 to 5 Torr, the average size of GaAs nanoparticles increases from 6 to 12 nm and standard deviation keeps almost the same (~2 nm) except for 0.5 Torr. By using transmission electron microscopy and Raman spectra, a critical preparation condition has been found which characterize the amorphous to crystal transition of GaAs nanoparticles.

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