Optimization of μc-Si1−xGex:H Single-Junction Solar Cells with Enhanced Spectral Response and Improved Film Quality
Joint Authors
Huang, Yen-Tang
Tsai, Chuang-Chuang
Chen, Pei-Ling
Chen, Po-Wei
Hsu, Hung-Jung
Hsu, Cheng-Hang
Source
International Journal of Photoenergy
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Effects of RF power on optical, electrical, and structural properties of μc-Si1−xGex:H films was reported.
Raman and FTIR spectra from μc-Si1−xGex:H films reflected the variation in microstructure and bonding configuration.
Unlike increasing the germane concentration for Ge incorporation, low RF power enhanced Ge incorporation efficiency in μc-Si1−xGex:H alloy.
By decreasing RF power from 100 to 50 W at a fixed reactant gas ratio, the optical bandgap of μc-Si1−xGex:H was reduced owing to the increase in Ge content from 11.2 to 23.8 at.%, while Ge-related defects and amorphous phase were increased.
Consequently, photo conductivity of 1.62 × 10−5 S/cm was obtained for the μc-Si1−xGex:H film deposited at 60 W.
By applying 0.9 μm thick μc-Si1−xGex:H absorber with XC of 48% and [Ge] of 16.4 at.% in the single-junction cell, efficiency of 6.18% was obtained.
The long-wavelength response of μc-Si1−xGex:H cell was significantly enhanced compared with the μc-Si:H cell.
In the case of tandem cells, 0.24 μm a-Si:H/0.9 μm μc-Si1−xGex:H tandem cell exhibited a comparable spectral response as 0.24 μm a-Si:H/1.4 μm μc-Si:H tandem cell and achieved an efficiency of 9.44%.
American Psychological Association (APA)
Huang, Yen-Tang& Chen, Pei-Ling& Chen, Po-Wei& Hsu, Hung-Jung& Hsu, Cheng-Hang& Tsai, Chuang-Chuang. 2015. Optimization of μc-Si1−xGex:H Single-Junction Solar Cells with Enhanced Spectral Response and Improved Film Quality. International Journal of Photoenergy،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1066473
Modern Language Association (MLA)
Huang, Yen-Tang…[et al.]. Optimization of μc-Si1−xGex:H Single-Junction Solar Cells with Enhanced Spectral Response and Improved Film Quality. International Journal of Photoenergy No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1066473
American Medical Association (AMA)
Huang, Yen-Tang& Chen, Pei-Ling& Chen, Po-Wei& Hsu, Hung-Jung& Hsu, Cheng-Hang& Tsai, Chuang-Chuang. Optimization of μc-Si1−xGex:H Single-Junction Solar Cells with Enhanced Spectral Response and Improved Film Quality. International Journal of Photoenergy. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1066473
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066473