Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10249211 | Solar Energy Materials and Solar Cells | 2005 | 7 Pages |
Abstract
By using a seeding technique it has been possible to reduce the thickness of p-μc-Si:H film to 230 Ã
, with an improved electrical conductivity (0.93 S cmâ1) and lower optical absorption compared to those of conventional p-μc-Si:H layers without a seed layer, for use at the tunnel junction and as the top layer of a double junction n-i-p structured a-Si solar cell. Undoped-μc-Si:H has been used as the seed layer. The layers were prepared by the radio frequency plasma-enhanced chemical vapour deposition (RF-PECVD) method (13.56 MHz) at 40 mW/cm2 rf power density and low substrate temperature (200 °C). The ultrathin seed layer (â¼30 Ã
) enhances the growth of microcrystallinity of the p-type μc-Si:H film as confirmed by the results of transmission electron microscopy (TEM) analysis and Raman spectroscopy.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Arindam Sarker, Chandan Banerjee, A.K. Barua,