Efficiency Enhancement of Nanoporous SiliconPolycrystalline-Silicon Solar Cells by Application of Trenched Electrodes
Joint Authors
Source
International Journal of Photoenergy
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-07
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Trenched electrodes were proposed to enhance the short-circuit current and conversion efficiency of polycrystalline-silicon (poly-Si) solar cells with nanoporous silicon (NPS) surface layers.
NPS films that served as textured surface layers were firstly prepared on heavily doped p+-type (100) poly-Si wafers by anodic etching process.
Interdigitated trenches were formed in the NPS layers by a reactive-ion-etch (RIE) process and Cr/Al double-layered metal was then deposited to fill the trenches and construct trenched-electrode-contacts (TEC’s).
Cells with TEC structures (called “TEC cells”) obtained 5.5 times higher short-circuit current than that of cells with planar electrode contacts (called “non-TEC cells”).
Most significantly, a TEC cell achieved 8 times higher conversion efficiency than that of a non-TEC cell.
The enhanced short-circuit current and conversion efficiency in TEC cells were ascribed to the reduced overall series resistance of devices.
In a TEC cell, trenched electrodes provided photocurrent flowing routes that directly access the poly-Si substrates without passing through the high resistive NPS layers.
Therefore, the application of NPS surface layers with trenched electrodes is a novel approach to development of highly efficient poly-Si solar cells.
American Psychological Association (APA)
Wu, Kuen-Hsien& Tang, Chia-Chun. 2014. Efficiency Enhancement of Nanoporous SiliconPolycrystalline-Silicon Solar Cells by Application of Trenched Electrodes. International Journal of Photoenergy،Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-1036858
Modern Language Association (MLA)
Wu, Kuen-Hsien& Tang, Chia-Chun. Efficiency Enhancement of Nanoporous SiliconPolycrystalline-Silicon Solar Cells by Application of Trenched Electrodes. International Journal of Photoenergy No. 2014 (2014), pp.1-4.
https://search.emarefa.net/detail/BIM-1036858
American Medical Association (AMA)
Wu, Kuen-Hsien& Tang, Chia-Chun. Efficiency Enhancement of Nanoporous SiliconPolycrystalline-Silicon Solar Cells by Application of Trenched Electrodes. International Journal of Photoenergy. 2014. Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-1036858
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036858