Energy Transfer Between Excitons and the 3d• Electrons of mn2+ in zn1-xmnxse
| dc.contributor.advisor | U. Stutenbaumer | |
| dc.contributor.author | Ejigu, Afrash | |
| dc.date.accessioned | 2018-06-14T06:25:19Z | |
| dc.date.accessioned | 2023-11-09T11:23:19Z | |
| dc.date.available | 2018-06-14T06:25:19Z | |
| dc.date.available | 2023-11-09T11:23:19Z | |
| dc.date.issued | 1995-06 | |
| dc.description.abstract | In this thesis the excitation spectra of the 4T I ~ 6 Al emission of Mn2+ in Znl.,Mn.Se crystals and their dependence on the crystal temperature, intensity of the exciting laser and manganese concentration (x «; 0.016) are investigated. Eventhougth some of the excitation spectra of these crystals were published in literature the origin of one of the excitation band ( M-band ) still remains Iillknown. The M-band is an excitation band of the 'TI ~ 6AI emission of Mn2+ in Znt.,Mn.Se within the spectral range of bound excitons. Computer fitting teclmiques were used to detennine some important parameters of the M-band and the bound exciton band (BE-band). 1) From the comparison of the crystal temperature, exciting laser intensity and Mn concentration dependence of some of these fitting parameters of the M-band with that of the BE-band it is found that the M-band is built up of a multiple of bound excitons, which are different from that of the BE-band | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/845 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Energy transfer between Excitons | en_US |
| dc.title | Energy Transfer Between Excitons and the 3d• Electrons of mn2+ in zn1-xmnxse | en_US |
| dc.type | Thesis | en_US |