Browsing Articole din publicaţii internaţionale by Subject "nanocolumns"

Now showing items 1-3 of 3

Cathodoluminescence microscopy and spectroscopy of GaN epilayers microstructured using surface charge lithography

DÍAZ-GUERRA, C.; PIQUERAS, J.; VOLCIUC, O.; POPA, V.; TIGINYANU, I. M. (American Institute of Physics, 2006)

Cathodoluminescence (CL) microscopy and spectroscopy have been used to investigate the optical properties of GaN microstructures patterned by Ar+ ion irradiation and subsequent photoelectrochemical (PEC) etching. Monochromatic ...
Luminescence of GaN nanocolumns obtained by photon-assisted anodic etching

TIGINYANU, I. M.; URSAKI, V. V.; ZALAMAI, V. V.; LANGA, S.; HUBBARD, S.; PAVLIDIS, D.; FÖLL, H. (American Institute of Physics, 2003)

GaN nanocolumns with transverse dimensions of about 50 nm were obtained by illumination-assisted anodic etching of epilayers grown by metalorganic chemical vapor deposition on sapphire substrates. The photoluminescence ...
Micro-Raman study of columnar GaAs nanostructures

PRUNICI, Pavel; IRMER, Gert; MONECKE, Jochen; SIRBU, Lilian; TIGINYANU, Ion (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2005)

Micro-Raman scattering spectra of bulk and porous GaAs and of individual nanocolumns were studied. The GaAs nanocolumns have radii of 50–100 nm and lengths between 5 and 25 µm. The experimental data are compared with the ...

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