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Thermally stimulated currents in thin silicon films arising from atmospheric effects without light exposure |
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| Authors: | V Smirnov S Reynolds C Main F Finger R Carius |
| Institution: | 1. Institute of Energy Research – Photovoltaics (IEF-5), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;2. Division of Electronic Engineering and Physics, University of Dundee, Dundee DD1 4HN, Scotland, United Kingdom;1. Colorado Energy Research Institute, Colorado School of Mines, Golden, CO, USA;2. National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO, USA;3. Department of Physics and Astronomy, University of Toledo, Toledo, OH, USA;4. Department of Physics, Syracuse University, Syracuse, NY, USA |
| Abstract: | A study of the effects of atmospheric adsorption on conductivity of thin silicon films upon heating is presented. A phenomenon is observed without illumination of the sample, that is similar to light-induced thermally stimulated current except no exciting light is applied. The effect is greatly reduced if the sample is annealed prior to cooling. A model involving electrostatic effects coupled with desorption is presented to account for this. |
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