Evidence of quantum size effect in nanocrystalline silicon by optical absorption
نویسندگان
چکیده
منابع مشابه
Light absorption engineering of hydrogenated nanocrystalline silicon by femtosecond laser.
The light absorption coefficient of hydrogenated nanocrystalline silicon has been engineered to have a Gaussian distribution by means of absorption modification using a femtosecond laser. The absorption-modified sample exhibits a significant absorption enhancement of up to ∼700%, and the strong absorption does not depend on the incident light. We propose a model responsible for this interesting...
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15 صفحه اولTransient Photoinduced Absorption in Ultrathin As-grown Nanocrystalline Silicon Films
We have studied ultrafast carrier dynamics in nanocrystalline silicon films with thickness of a few nanometers where boundary-related states and quantum confinement play an important role. Transient non-degenerated photoinduced absorption measurements have been employed to investigate the effects of grain boundaries and quantum confinement on the relaxation dynamics of photogenerated carriers. ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2001
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.63.195322