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Laser-Doping through Anodic Aluminium Oxide Layers for Silicon Solar Cells
Joint Authors
Wenham, Stuart
Lu, Doris (Pei Hsuan)
Lennon, Alison
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-18
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper demonstrates that silicon can be locally doped with aluminium to form localised p+ surface regions by laser-doping through anodic aluminium oxide (AAO) layers formed on the silicon surface.
The resulting p+ regions can extend more than 10 μm into the silicon and the electrically active p-type dopant concentration exceeds 1020 cm−3 for the first 6-7 μm of the formed p+ region.
Anodic aluminium oxide layers can be doped with other impurities, such as boron and phosphorus, by anodising in electrolytes containing the extrinsic impurities in ionic form.
The ions become trapped in the formed anodic oxide during anodisation, therefore enabling the impurity to be introduced into the silicon, with aluminium, during laser-doping.
This codoping process can be used to create very heavily doped surface layers which can reduce contact resistance on metallisation, whilst the deeper doping achieved by the intrinsic aluminium may act to shield the surface from minority carriers.
laser-doping through AAO layers can be performed without introducing any voids in the silicon or fumes which may be harmful to human health.
American Psychological Association (APA)
Lu, Doris (Pei Hsuan)& Lennon, Alison& Wenham, Stuart. 2015. Laser-Doping through Anodic Aluminium Oxide Layers for Silicon Solar Cells. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069391
Modern Language Association (MLA)
Lu, Doris (Pei Hsuan)…[et al.]. Laser-Doping through Anodic Aluminium Oxide Layers for Silicon Solar Cells. Journal of Nanomaterials No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1069391
American Medical Association (AMA)
Lu, Doris (Pei Hsuan)& Lennon, Alison& Wenham, Stuart. Laser-Doping through Anodic Aluminium Oxide Layers for Silicon Solar Cells. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069391
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069391