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Nonlinear Absorption Properties of nc-Si:H Thin Films |
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| Authors: | GUO Zhenning GUO Hengqun LI Shichen HUANG Yongzhen WANG Qiming |
| Affiliation: | 1. Department of Applied Physics, Huaqiao University, 2. The College of Precision Instrument and Optoelectronics Engineering,Tianjin University. 3. National Intergrated Optoelectronic Lab., Institute of Semiconductors, The Chinese Academy of Sciences, |
| Abstract: | It is reported in this paper that the phenomenon of the saturated absorption of the exciton in hydrogenated nanocrystalline silicon (nc-Si:H) thin film fabricated by plasma enhanced chemical vapor deposition (PECVD) without any post-processing is observed at room temperature using pump-probe technology. This nonlinear optical absorption property is induced by the surface effect of the silicon nanoparticles in nc-Si:H thin films. |
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