期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 66, 期 1-4, 页码 217-223出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0927-0248(00)00176-8
关键词
mu c-Si; VHF plasma; high-pressure depletion; high growth rate; pulse-modulation
The deposition of hydrogenated microcrystalline Si (muc-Si) at working pressure from 0.5 to 4 Torr was performed using a very-high-frequency (VHF) plasma-enhanced chemical vapor deposition (PECVD) method. Correlation of the growth rate and grain size with deposition parameters such as working pressure, silane flow rate, excitation frequency and input power were investigated. With increasing silane flow rate from 10 to 50 seem, the growth rate increased from 13 to 28 Angstrom /s keeping grain size at 300 Angstrom. It was also found that the growth rate strongly depended on configuration of gas injection. muc-Si him with the growth rate of 50 Angstrom /s at 250 degreesC was obtained by injecting the silane gas from near the cathode at an excitation frequency of 60 MHz, (C) 2001 Published by Elsevier Science B.V. All rights reserved.
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