Photoreflectance (PR) of surface-intrinsic-n+ type GaAs has been measured for various temperatures, then we can get the energy of E0+£G0 transition in various temperatures. The spectra exhibited many Franz-Keldysh oscillations, when probe beam¡¦s energy is larger than energy gap. Electric field (F) and transition energy can be determined from analyzing the Franz-Keldysh oscillation. Further more we can get the surface¡¦s Fermi level from the dependence of surface¡¦s electric field (Fs) on temperature (T).
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0613103-181401 |
| Date | 13 June 2003 |
| Creators | Wang, kuan-kuei |
| Contributors | Ting-Chang Chang, Yan-Ten Lu, Dong-Po Wang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0613103-181401 |
| Rights | withheld, Copyright information available at source archive |
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