| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1627983 | Journal of Alloys and Compounds | 2006 | 8 Pages |
The emission and absorption spectra of Er3+ ions in Er2O3 powder are investigated at room temperature. The crystal field splitting of 4I15/2, 4I13/2, 4I9/2 and 4S3/2 multiplets of Er3+ was calculated using a parameterized Hamiltonian including crystal field terms. A final standard deviation of 5.3 cm−1 is obtained between 22 calculated and experimental Stark. The strength crystal field parameters of Er2O3 powder are compared to those of erbium doped Y2O3 single crystal. In addition, the location of the ground and the first excited states of Er3+ in Er2O3 powder is determined. The 4I15/2 ground state of Er3+ is located at 12750 cm−1 below the valence band edge. The 4I13/2 and 4I11/2 multiplets are set in resonance with the valence band. A configuration coordinate diagram is proposed for Er3+ in Er2O3 powder.
