Visible cathodoluminescence from nanocrystalline GaSb obtained by mechanical milling | Zendy

Stefano Borini | Zendy; Bianchi Méndez | Zendy; J. Piqueras | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Visible cathodoluminescence from nanocrystalline GaSb obtained by mechanical milling

Author(s) -

Stefano Borini,

Bianchi Méndez,

J. Piqueras

Publication year - 2003

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1628829

Subject(s) - cathodoluminescence , luminescence , nanocrystalline material , materials science , transmission electron microscopy , scanning electron microscope , oxide , visible spectrum , analytical chemistry (journal) , nanocrystal , optoelectronics , nanotechnology , metallurgy , chemistry , composite material , chromatography

The luminescence of mechanically milled GaSb has been investigated by means of cathodoluminescence (CL) in the scanning electron microscope. Transmission electron microscopy reveals that the GaSb powders obtained after the milling process contain nanocrystals with sizes of few nanometers. CL spectra of the GaSb powders show a bright blue-green luminescence visible to the naked eye, even at room temperature. Furthermore, a shift from blue to green has been observed depending on the milling time. In order to clarify the origin of this visible luminescence, we have performed a CL study on gallium oxide (Ga2O3) and antimony oxide (Sb2O3) powders, which exhibit several emission bands in the visible range. Comparison of these results with CL spectra from GaSb powders shows that oxidation during the milling process of GaSb plays an important role in the luminescence features observed

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research