Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10249213 | Solar Energy Materials and Solar Cells | 2005 | 13 Pages |
Abstract
Zinc oxide (ZnO) is now often used as a transparent conductive oxide for contacts in thin-film silicon solar cells. This paper presents a study of ZnO material deposited by the low-pressure chemical vapour deposition technique, in a pressure range below the pressures usually applied for the deposition of this kind of material. A temperature series has been deposited, showing a morphological transition around 150 °C. ZnO samples deposited with temperatures just higher than this transition are constituted of large grains highly oriented along a single crystallographic orientation. These “monocrystals” lead to low resistivity values, showing a clear correlation between the size of the surface grains and the electrical performance of corresponding films. Additionally, these large grains also yield ZnO layers with high transparency and high light-scattering power, specially suitable for solar cell technology based on thin-film silicon.
Related Topics
Physical Sciences and Engineering
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Authors
S. Faÿ, U. Kroll, C. Bucher, E. Vallat-Sauvain, A. Shah,