Isolation of III-VGe Multijunction Solar Cells by Wet Etching
Joint Authors
Fafard, S.
Masson, D. P.
Arès, R.
Turala, A.
Aimez, V.
Jaouad, A.
Source
International Journal of Photoenergy
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Microfabrication cycles of III-V multijunction solar cells include several technological steps and end with a wafer dicing step to separate individual cells.
This step introduces damage at lateral facets of the junctions that act as charge trapping centers, potentially causing performance and reliability issues, which become even more important with today’s trend of cell size reduction.
In this paper we propose a process of wet etching of microtrenches that allows electrical isolation of individual solar cells with no damage to the sidewalls.
Etching with bromine-methanol, the solution that is typically used for nonselective etching of III-V compounds, results in the formation of unwanted holes on the semiconductor surfaces.
We investigate the origin of holes formation and discuss methods to overcome this effect.
We present an implementation of the isolation step into a solar cell fabrication process flow.
This improved fabrication process opens the way for improved die strength, yield, and reliability.
American Psychological Association (APA)
Turala, A.& Jaouad, A.& Masson, D. P.& Fafard, S.& Arès, R.& Aimez, V.. 2013. Isolation of III-VGe Multijunction Solar Cells by Wet Etching. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-482715
Modern Language Association (MLA)
Turala, A.…[et al.]. Isolation of III-VGe Multijunction Solar Cells by Wet Etching. International Journal of Photoenergy No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-482715
American Medical Association (AMA)
Turala, A.& Jaouad, A.& Masson, D. P.& Fafard, S.& Arès, R.& Aimez, V.. Isolation of III-VGe Multijunction Solar Cells by Wet Etching. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-482715
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482715