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http://hdl.handle.net/10773/19742| Title: | Influence of TiO2 host crystallinity on Er3+ light emission |
| Author: | Johannsen, S. R. Roesgaard, S. Julsgaard, B. Ferreira, R. A. S. Chevallier, J. Balling, P. Ram, S. K. Larsen, A. Nylandsted |
| Keywords: | TITANIA THIN-FILMS UP-CONVERSION DOPED TIO2 LUMINESCENCE NANOCRYSTALS AMPLIFIERS EUROPIUM CELLS |
| Issue Date: | 2016 |
| Publisher: | OPTICAL SOC AMER |
| Abstract: | This work presents a study of the luminescence properties of Er3+ when included into two different TiO2 hosts: a polycrystalline and an amorphous host. The two host environments were produced by depositing two thin films with different Er3+ concentration using radio-frequency magnetron sputtering. Structural analysis revealed the presence of the rutile and anatase phases in the polycrystalline film. Time-resolved and steady-state photoluminescence measurements evidenced the presence of two distinct local Er3+ environments in the polycrystalline host. For the amorphous TiO2 host, only one Er3+ environment was observed, which differed from the two environments in the polycrystalline host. A method for extracting a fast and slow time-resolved emission spectrum from the two observed local environments in the polycrystalline host is also presented. (C) 2016 Optical Society of America |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/19742 |
| DOI: | 10.1364/OME.6.001664 |
| ISSN: | 2159-3930 |
| Publisher Version: | 10.1364/OME.6.001664 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Influence of TiO2 host crystallinity on Er3+ light emission_10.1364OME.6.001664.pdf | 1.59 MB | Adobe PDF |  |
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