| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000381242 |
| ISSN: | 0035-001X |
| Authors: | Castañeda Contreras, Jesús1 Marañón Ruiz, Virginia F1 Meneses Nava, Marco Antonio2 Pérez Ladrón de Guevara, Héctor1 Rodríguez Rojas, R.A1 Chiu Zárate, Roger1 |
| Institutions: | 1Universidad de Guadalajara, Centro Universitario de los Lagos, Lagos de Moreno, Jalisco. México |
| Year: | 2015 |
| Season: | Mar-Abr |
| Volumen: | 61 |
| Number: | 2 |
| Pages: | 127-131 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | Er2 O3 nanoparticles were synthesized by co-precipitation with the addition of ascorbate as stabilizing agent. The nanoparticles had spherical shapes with a mean diameter of 32 nm and were allocated in clusters, as determined by XRD, AFM, and optical microscopy. Characteristic green and red emissions from Er3+ were recorded by pumping the nanoparticles at 525 nm, 805 nm, and 975 nm. However, the luminescence spectra show an enhancement of red emission for NIR pump wavelengths. We proposed this behavior was due to phonon-assisted depopulation mechanisms and energy transfer processes related to the different excitation schemes |
| Disciplines: | Física y astronomía |
| Keyword: | Física de materia condensada, Nanopartículas de Erbio, Materiales ópticos, Espectroscopía, Propiedades ópticas |
| Keyword: | Physics and astronomy, Condensed matter physics, Erbium nanoparticles, Optical materials, Spectroscopy, Optical properties |
| Full text: | Texto completo (Ver PDF) |
