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Artigo Photoluminescence and Structural Analysis of Er 3 + / Yb 3 + / Tm 3 + Triply Doped Gd 2 O 3
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rocha, Leonardo A. Machado, Wagner Souza Patrícia Martelli, Bruno Schiavon, Marco Antônio Manzani, Danilo Pecoraro, Edison Ribeiro, Sidney José Lima Ferrari, Jefferson Luis |
| Copyright Year | 2017 |
| Abstract | Spectroscopic and structural properties of Er:Yb:Tm triply doped Gd2O3 nanocrystals were investigated. The effect of heat treatment at 800, 900, 1000 and 1100 oC for 4h, on the luminescence and the energy upconversion emissions (excited at 980nm) in the visible and near infrared spectral regions was discussed. The doping process with RE was effective on Gd2O3 cubic phase, and structural parameters were determined for this phase. The morphology of the particles did not present significant differences on shape and size, demonstrating the reproducibility of the synthesis methods. Infrared to visible upconversion as well as infrared emissions at 1550nm were detected, suggesting that energy transfer processes from Yb to Er are predominant in Gd2O3:Yb :Er:Tmsamples. The results pointed out the potential of Gd2O3:Yb :Er:Tm as a material for solar concentrators and optical telecom C-band (1550nm) applications. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://rvq.sbq.org.br/imagebank/pdf/v9n6a08.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
