Silicon Powder-Based Wafers for Low-Cost Photovoltaics: Laser Treatments and Nanowire Etching
Joint Authors
Azar, Amin S.
Jia, G.
Plentz, J.
Gawlik, A.
Stokkan, G.
Syvertsen, M.
Carvalho, P. A.
Dellith, J.
Dellith, A.
Andrä, G.
Ulyashin, A.
Source
International Journal of Photoenergy
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-06
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In this study, laser-treated polycrystalline Si (pc-Si) wafers, fabricated by wire sawing of hot-pressed ingots sintered from Si powder, have been investigated.
As-cut wafers and those with high-quality thin Si layers deposited on top of them by e-beam have been subjected to laser irradiation to clarify typical trends of structural modifications caused by laser treatments.
Moreover, possibility to use laser-treated Si powder-based substrates for fabrication of advanced Si structures has been analysed.
It is established that (i) Si powder-based wafers with thicknesses ~180 μm can be fully (from the front to back side) or partly (subsurface region) remelted by a diode laser and grain sizes in laser-treated regions can be increased; (ii) a high-quality top layer can be fabricated by crystallization of an additional a-Si layer deposited by e-beam evaporation on top of the pc-Si; and (iii) silicon nanowires can be formed by metal-assisted wet chemical etching (MAWCE) of polished Si powder-based wafers and as-cut wafers irradiated with medium laser power, while a surface texturing on the as-cut pc-Si wafers occur, and no nanowires can form in the region subject to a liquid phase crystallization (LPC) caused by high-power laser treatments.
American Psychological Association (APA)
Jia, G.& Plentz, J.& Gawlik, A.& Azar, Amin S.& Stokkan, G.& Syvertsen, M.…[et al.]. 2018. Silicon Powder-Based Wafers for Low-Cost Photovoltaics: Laser Treatments and Nanowire Etching. International Journal of Photoenergy،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1174322
Modern Language Association (MLA)
Jia, G.…[et al.]. Silicon Powder-Based Wafers for Low-Cost Photovoltaics: Laser Treatments and Nanowire Etching. International Journal of Photoenergy No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1174322
American Medical Association (AMA)
Jia, G.& Plentz, J.& Gawlik, A.& Azar, Amin S.& Stokkan, G.& Syvertsen, M.…[et al.]. Silicon Powder-Based Wafers for Low-Cost Photovoltaics: Laser Treatments and Nanowire Etching. International Journal of Photoenergy. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1174322
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1174322