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Ion-induced secondary electron emission in SiH4 glow discharge, and temperature dependence of hydrogenated amorphous silicon deposition rate

  • Institut polytechnique de Paris

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Résumé

The ion-induced secondary electron emission coefficient γ from the a-Si:H film deposited from a SiH4 glow discharge is measured in situ using an electrostatic grid analyzer. At low SiH4 pressure and discharge power density, γ≊0.033±0.004 and the overall electrical power dissipation does not vary with the gas and wall temperature between 25 and 250°C, when the SiH4 molecular density is kept constant. However, the a-Si:H film deposition rate does depend on the temperature, which reveals the effects of thermally activated gas phase of H and SiH2 radicals arising from SiH4 dissociation.

langue originaleAnglais
Pages (de - à)2578-2580
Nombre de pages3
journalJournal of Applied Physics
Volume73
Numéro de publication5
Les DOIs
étatPublié - 1 déc. 1993

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