Publication: Cathodoluminescence characterization of rare earth doped composite materials based on porous GaP
Loading...
Full text at PDC
Publication Date
2008-01
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Netherlands
Abstract
Porous GaP layers doped with erbium or europium elements have been obtained by electrochemical etching and further impregnation processes. The thermal treatments for optical activation of rare earth (RE) ions lead to partial oxidation of porous GaP skeleton and a composite material is obtained. The presence of ErPO_4 and EuPO_4 oxide nanophases is detected by X-ray diffraction (XRD) analysis. Visible luminescence from RE ions in the composite material has been investigated by means of the cathodoluminescence (CL) technique in the scanning electron microscope. Intense red and green emission lines characteristic from Er^3 and Eu^3 ions dominate the CL spectra in the case of parallel and regular nanotubes in the samples. The role of the oxygen content and the detected phases in the luminescence results are discussed.
Description
© Springer Science+Business Media, LLC 2007.
Meeting of the Brazilian-Society-for-Materials-Research (5. 2008. Florianopolis, Brasil).
This work has been supported by MEC (project MAT-2003-00455).
UCM subjects
Unesco subjects
Keywords
Citation
1. Canham LT (1990) Appl Phys Lett 57:1046
2. Föll H, Langa S, Carstensen J, Christophersen M, Tiginyanu IM (2003) Adv Mater 15:183
3. Anedda A, Serpi A, Karavanskii VA, Tiginyanu IM, Ichizli VM (1995) Appl Phys Lett 67:3316
4. Kuriyama K, Ushiyama K, Ohbora K, Miyamoto Y, Takeda S (1998) Phys Rev B 58:1103
5. Stevens-Kalceff M, Tiginyanu IM, Langa S, Fo¨ll H (2001) J Appl Phys 89:2560
6. Nogales E, Me´ndez B, Piqueras J, Plugaru R, Coraci A, García JA (2002) J Phys D 35:295
7. Favennec PN, Haridon HL, Salvi M, Muotonnet D, Le Guillo Y (1989) Electron Lett 25:718
8. Nogales E, Martin RW, O’Donnell KP, Lorenz K, Alves E, Ruffenach S, Briot O (2006) Appl Phys Lett 88:031902
9. Gollakota P, Dhawan A, Wellenius P, Lunardi LM, Muth JF, Saripalli YN, Peng HY, Everitt HO (2006) Appl Phys Lett 88:221906
10. Sirbu L, Ursaki VV, Tiginyanu IM, Dolgaleva K, Boyd RW (2007) Phys Stat Sol (RRL) 1:R13
11. Domínguez-Adame F, Piqueras J (1989) Mater Chem Phys 21:539
12. Nogales E, Méndez B, Piqueras J (2005) Appl Phys Lett 86:113112
13. Villora EG, Atou T, Sekiguchi T, Sugawara T, Kikuchi M, Fukuda T (2001) Solid State Commun 120:455
14. Nogales E, Méndez B, Piqueras J, Plugaru R, Coraci A, García JA (2002) J Phys D: Appl Phys 35:295
15. Colon JE, Elsaesser DW, Yeo YK, Hengehold RL, Pomrenke GS (1993) Appl Phys Lett 63:216
16. Yoshida M, Hiraka K, Ohta H, Fujiwara Y, Koizumi A, Takeda Y (2004) J Appl Phys 96:4189
17. Phillips JC (1994) J Appl Phys 76:5896