Dependence of Er3+ blue up-conversion on TiO2 contents in SiO2–TiO2 sol–gel powder |
| |
| Affiliation: | 1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, PR China;2. Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, PR China;1. Departamento de Física Aplicada I, Escuela Superior de Ingeniería, Universidad del País Vasco UPV/EHU,Alda. Urquijo s/n, 48013 Bilbao, Spain;2. Departamento de Física Aplicada II, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Apartado 644, Bilbao, Spain;3. Instituto de Optica, Consejo Superior de Investigaciones Científicas CSIC, Serrano 121, 28006 Madrid, Spain;4. Materials Physics Center CSIC-UPV/EHU and Donostia International Physics Center, 20018 San Sebastian, Spain;1. Université de Lorraine, Institut Jean Lamour, UMR CNRS 7198, BP 70239, F-54506 Vandoeuvre-lès-Nancy, France;2. Armenian State Pedagogical University, Yerevan, Tigran Mets Ave., 17, Armenia;3. Institute for Physical Researches, National Academy of Sciences of Armenia, Ashtarak-2, Armenia;4. Université de Lorraine, LMOPS, EA 4423, F-57070 Metz, France;5. CentraleSupelec, LMOPS, F-57070 Metz, France;1. Clinical Laboratory of China Meitan General Hospital, Beijing, PR China;2. Department of Abdominal Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China;3. Department of Thoracic Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China;4. Department of Thoracic Surgery, Navy General Hospital of Chinese PLA, Beijing, PR China;5. Center for Basic Medical Science, Navy General Hospital of Chinese PLA, Beijing, PR China;6. State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China |
| |
| Abstract: | The TiO2 content was changed from low to high concentration (5–70% molar) in binary erbium doped SiO2–TiO2 powder samples produced by the sol–gel method. Three pumping wavelengths 532, 979 and 1532 nm, were used to study the blue up-conversion emission and its dependency on the titanium dioxide content. Two erbium concentrations were considered, at 2% and 10% molar. The titanium dioxide content affects the cluster formation, so at low erbium concentration and pumping at 532 nm, the blue and red emissions were enhanced as the TiO2 content increased. However, at high erbium concentration and exciting at 979 and 1532 nm those emissions were quenched as the titanium dioxide was increased. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
