Conferencia
Abstract:
Hierarchical ZnO nanostructures (such as nanowires, nanocombs and nanohedgehogs) were grown by means of a vapor-phase transport technique in a tubular furnace. Silicon based substrates were used, over which Au nanoclusters were deposited as growth catalyzers. We study the two-photon absorption induced photoluminescence (TPPL) from the various ZnO nanoobjects grown using a micrometer sized polarised laser beam as the excitation source. The UV region of the TPPL spectra contains various peaks whose different patterns depend on the type of nanostructure and its orientation with respect to the incident polarization. We identify the peaks in the TPPL spectra, which are found to be dominated by free exciton emission and their phonon replicas. For the nanocomb, however, Fabry-Perot modes originating from optical multiple reflections within the comb's teeth are demonstrated. ©The Electrochemical Society.
Registro:
| Documento: | Conferencia |
| Título: | Two-photon photoluminescence from hierarchical ZnO nanostructures |
| Autor: | Grinblat, G.; Capeluto, M.G.; Tirado, M.; Comedi, D.; Bragas, A.V. |
| Ciudad: | Seattle, WA |
| Filiación: | Laboratorio de Electrónica Cuántica, Depto. de Física, FCEyN, Argentina Laboratorio de Física del Sólido, Depto. de Física, FACET, S.M. de Tucumán, Argentina Laboratorio de Propiedades Dieléctricas de la Materia, Depto. de Física, FACET, S.M. de Tucumán, Argentina CONICET, Argentina IFIBA-CONICET-UBA, Argentina |
| Palabras clave: | Au nanoclusters; Excitation sources; Fabry-Perot; Free-exciton emissions; Incident polarization; Multiple reflections; Nano-objects; Nanocombs; Phonon replica; Silicon-based; Tubular furnaces; Two photon; Two-photon absorptions; UV region; Vapor phase transport; ZnO; ZnO nanostructures; Gold deposits; Nanotechnology; Nanowires; Photoluminescence; Two photon processes; Zinc oxide |
| Año: | 2012 |
| Volumen: | 45 |
| Número: | 5 |
| Página de inicio: | 67 |
| Página de fin: | 72 |
| DOI: | http://dx.doi.org/10.1149/1.3700411 |
| Título revista: | 2nd International Symposium on Nanoscale Luminescent Materials - 221st ECS Meeting |
| Título revista abreviado: | ECS Transactions |
| ISSN: | 19385862 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19385862_v45_n5_p67_Grinblat |
Referencias:
- Djurišić, A.B., Ng, A.M.C., Chen, X.Y., (2010) Prog. Quant. Electron., 34, p. 191
- Comedi, D., Tirado, M., Zapata, C., Heluani, S.P., Villafuerte, M., Mohseni, P., LaPierre, R.R., (2010) J. Alloys Compd., 495, p. 439
- Djurišić, A.B., Leung, Y.H., (2006) Small, 2 (8-9), pp. 944-961
- Gao, M., Cheng, R., Li, W., Li, Y., Zhang, X., Xie, S., (2010) J. Phys. Chem. C, 114 (25)
- Chen, S.L., Chen, W.M., Buyanova, I.A., (2011) Phys. Rev. B, 83, p. 245212A4 - Luminescence and Display Materials Division; Dielectric Science and Technology Division
Citas:
---------- APA ----------
Grinblat, G., Capeluto, M.G., Tirado, M., Comedi, D. & Bragas, A.V. (2012) . Two-photon photoluminescence from hierarchical ZnO nanostructures. 2nd International Symposium on Nanoscale Luminescent Materials - 221st ECS Meeting, 45(5), 67-72.http://dx.doi.org/10.1149/1.3700411
---------- CHICAGO ----------
Grinblat, G., Capeluto, M.G., Tirado, M., Comedi, D., Bragas, A.V. "Two-photon photoluminescence from hierarchical ZnO nanostructures" . 2nd International Symposium on Nanoscale Luminescent Materials - 221st ECS Meeting 45, no. 5 (2012) : 67-72.http://dx.doi.org/10.1149/1.3700411
---------- MLA ----------
Grinblat, G., Capeluto, M.G., Tirado, M., Comedi, D., Bragas, A.V. "Two-photon photoluminescence from hierarchical ZnO nanostructures" . 2nd International Symposium on Nanoscale Luminescent Materials - 221st ECS Meeting, vol. 45, no. 5, 2012, pp. 67-72.http://dx.doi.org/10.1149/1.3700411
---------- VANCOUVER ----------
Grinblat, G., Capeluto, M.G., Tirado, M., Comedi, D., Bragas, A.V. Two-photon photoluminescence from hierarchical ZnO nanostructures. ECS Transactions. 2012;45(5):67-72.http://dx.doi.org/10.1149/1.3700411
