Surface Photovoltage Spectroscopy of Cd0.97Fe0.03Se and Cd0.97Fe0.03Te Crystals |
| A. Sarem, B.A. Οrlowski Institute of Physics, Polish Academy of Sciences, Al.Lotników 32/46, 02-668 Warszawa, Poland and S. Kuźmiński Institute of Physics, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland |
| Received: August 8, 1990 |
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| The surface electronic structure of the Cd1-xFexSe and Cd1-xFexΤe crystals with x = 0 and x = 0.03 has been studied by Surface Photovoltage Spectroscopy (SPS). The change of surface photovoltage was observed due to photo-excitation of the electrons from the deep donor state Fe 3d to conduction band edge. This gave possibility to determine energy position of the Fe 3d state at 0.64 and 0.15 eV over the top of the valence band for CdSe and CdTe, respectively. |
| DOI: 10.12693/APhysPolA.79.183 PACS numbers: 71.25.Tn |