Adhesion Improvement and Characterization of Magnetron Sputter Deposited Bilayer Molybdenum Thin Films for Rear Contact Application in CIGS Solar Cells
Joint Authors
Yan, Xia
Li, Weimin
Venkataraj, Selvaraj
Aberle, Armin Gerhard
Source
International Journal of Photoenergy
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Molybdenum (Mo) thin films are widely used as rear electrodes in copper indium gallium diselenide (CIGS) solar cells.
The challenge in Mo deposition by magnetron sputtering lies in simultaneously achieving good adhesion to the substrates while retaining the electrical and optical properties.
Bilayer Mo films, comprising five different thickness ratios of a high pressure (HP) deposited bottom layer and a low pressure (LP) deposited top layer, were deposited on 40 cm × 30 cm soda-lime glass substrates by DC magnetron sputtering.
We focus on understanding the effects of the individual layer properties on the resulting bilayer Mo films, such as microstructure, surface morphology, and surface oxidation.
We show that the thickness of the bottom HP Mo layer plays a major role in determining the micromechanical and physical properties of the bilayer Mo stack.
Our studies reveal that a thicker HP Mo bottom layer not only improves the adhesion of the bilayer Mo, but also helps to improve the film crystallinity along the preferred [ 110 ] direction.
However, the surface roughness and the porosity of the bilayer Mo films are found to increase with increasing bottom layer thickness, which leads to lower optical reflectance and a higher probability for oxidation at the Mo surface.
American Psychological Association (APA)
Li, Weimin& Yan, Xia& Aberle, Armin Gerhard& Venkataraj, Selvaraj. 2016. Adhesion Improvement and Characterization of Magnetron Sputter Deposited Bilayer Molybdenum Thin Films for Rear Contact Application in CIGS Solar Cells. International Journal of Photoenergy،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1106435
Modern Language Association (MLA)
Li, Weimin…[et al.]. Adhesion Improvement and Characterization of Magnetron Sputter Deposited Bilayer Molybdenum Thin Films for Rear Contact Application in CIGS Solar Cells. International Journal of Photoenergy No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1106435
American Medical Association (AMA)
Li, Weimin& Yan, Xia& Aberle, Armin Gerhard& Venkataraj, Selvaraj. Adhesion Improvement and Characterization of Magnetron Sputter Deposited Bilayer Molybdenum Thin Films for Rear Contact Application in CIGS Solar Cells. International Journal of Photoenergy. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1106435
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1106435