Título:
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Polymorphous Si thin films from radio frequency plasmas of SiH4 diluted in Ar: A study by transmission electron microscopy and Raman spectroscopy
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Autor/a:
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Viera Mármol, Gregorio; Huet, S.; Bertrán Serra, Enric; Boufendi, L.
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Otros autores:
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Universitat de Barcelona |
Abstract:
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In this study, we present a detailed structural characterization by means of transmission electron microscopy and Raman spectroscopy of polymorphous silicon (pm-Si:H) thin films deposited using radio-frequency dust-forming plasmas of SiH4 diluted in Ar. Square-wave modulation of the plasma and gas temperature was varied to obtain films with different nanostructures. Transmission electron microscopy and electron diffraction have shown the presence of Si crystallites of around 2 nm in the pm-Si:H films, which are related to the nanoparticles formed in the plasma gas phase coming from their different growth stages, named particle nucleation and coagulation. Raman scattering has proved the role of the film nanostructure in the crystallization process induced ¿in situ¿ by laser heating. |
Materia(s):
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-Pel·lícules fines -Espectroscòpia Raman -Nanoestructures -Microelectrònica -Radiofreqüència -Optoelectrònica -Thin films -Raman spectroscopy -Nanostructures -Microelectronics -Radio frequency -Optoelectronics |
Derechos:
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(c) American Institute of Physics, 2001
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Institute of Physics
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