Microcrystalline silicon thin films grown at high deposition rate by PECVD

被引:16
作者
Ambrosone, G.
Coscia, U.
Lettieri, S.
Maddalena, P.
Ambrico, M.
Perna, G.
Minarini, C.
机构
[1] Univ Naples Federico II, CNR, INFM Coherentia, Complesso Univ Monte S Angelo, I-80126 Naples, Italy
[2] Univ Naples Federico II, Complesso Univ Monte S Angelo, Dipartimento Sci Fisiche, I-80126 Naples, Italy
[3] CNR, IMIP, Sez Bari, I-70126 Bari, Italy
[4] Univ Foggia, Dipartimento Sci Biomed, I-71100 Foggia, Italy
[5] Ist Nazl Fis Mat, Sez Bari, I-70126 Bari, Italy
[6] ENEA, Res Ctr, I-80055 Portici, NA, Italy
关键词
microcrystalline silicon; RF-PECVD; optical absorption;
D O I
10.1016/j.tsf.2005.12.110
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Hydrogenated microcrystalline silicon films have been deposited by RF-PECVD varying the RF power from 20 to 200 W, using a silane concentration of 3% and a total flow rate of 206 sccm. The film properties do not change appreciably in a wide range of PF power: dark conductivity, hydrogen content and grain dimension are approximately constant, 10(-4) S/cm, 2 at.%, 10 nm, respectively. A deposition rate of 0.5 mn/s has been reached at the RF power of 150 W Films deposited at high deposition rate show, in the near infrared region, a clear enhancement of optical absorption due to the light scattering and low defect absorption. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:280 / 284
页数:5
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