RT Journal Article T1 Cathodoluminescence from beta-Ga_2O_3 nanowires A1 Nogales Díaz, Emilio A1 Méndez Martín, María Bianchi A1 Piqueras De Noriega, Francisco Javier AB ß-Ga_2O_3 nano- and microwires with diameters ranging from tens of nanometers to about one micron and lengths of up to tens of microns, have been obtained by sintering Ga_2O_3 powder under argon flow. The structures have been investigated by cathodoluminescence in the scanning electron microscope. The samples showed the violet-blue emission characteristic of Ga_2O_3 and a red emission at 1.73 eV dominant in the nanowires and other nano- and microstructures formed during the sintering treatment. At temperatures below 210 K, this band exhibits sharp peaks separated by 20 meV. This observation suggests the exchange of phonons in the recombination process. PB Amer Inst Physics SN 0003-6951 YR 2005 FD 2005-03-14 LK https://hdl.handle.net/20.500.14352/50951 UL https://hdl.handle.net/20.500.14352/50951 LA spa NO © 2005 American Institute of Physics. This work was supported by the MEC project (MAT 2003-00455). NO MEC DS Docta Complutense RD 4 abr 2025