RT Journal Article
T1 Red luminescence of Cr in ß-Ga_2O_3 nanowires
A1 Nogales Díaz, Emilio
A1 García, José A.
A1 Méndez Martín, María Bianchi
A1 Piqueras De Noriega, Francisco Javier
AB Red luminescence emission from chromium doped ß-Ga_2O_3 nanowires has been studied by means of photoluminescence (PL) techniques. PL excitation shows several bands in the ultraviolet-visible region. Time decay values, obtained by time resolved PL, at different temperatures fit a three level model with thermal population of the upper level from the middle one. From the results, the origin of the emission is assigned to Cr^3+ ions in the ß-Ga_2O_3 host, and values for the energy level separation and Huang-Rhys factor of the broad^4T_2^(-4)A_2 emission are estimated.
PB American Institute of Physics
SN 0021-8979
YR 2007
FD 2007-02-01
LK https://hdl.handle.net/20.500.14352/50945
UL https://hdl.handle.net/20.500.14352/50945
LA eng
NO © 2007 American Institute of Physics. This work has been supported by MEC Project No. MAT2003-00455 and UCM-CM Group 910146.
NO MEC
NO UCM-CM
DS Docta Complutense
RD 6 abr 2025