Photoacoustic spectroscopy of Co2+ in ZnGa2O4 and MgGa2O4

✍ Scribed by L.P. Sosman; T. Abritta; A.C. Pereira; H. Vargas

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 354 KB
• Volume: 227
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00856-6

✦ Synopsis

A photoacoustic study of cobalt-doped ZnGasO, and MgGasO, is presented. The observed visible bands are assigned to the spin-allowed electronic transition 4A2 ( 4F) --t4T, (4P). Comparison between the radiationless relaxation time, observed by the photoacoustic method, and the fluorescence decay time indicates that a radiation process is dominant for these samples.