Multi-scale deformation and material removal in amorphous Si thin film solar panels

Sumitomo, Taro, Huang, Han and Zhou, Libo (2011) Multi-scale deformation and material removal in amorphous Si thin film solar panels. International Journal of Nanomanufacturing, 7 1: 39-53. doi:10.1504/IJNM.2011.039961

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Author Sumitomo, Taro
Huang, Han
Zhou, Libo
Title Multi-scale deformation and material removal in amorphous Si thin film solar panels
Journal name International Journal of Nanomanufacturing   Check publisher's open access policy
ISSN 1746-9392
Publication date 2011-05
Sub-type Article (original research)
DOI 10.1504/IJNM.2011.039961
Volume 7
Issue 1
Start page 39
End page 53
Total pages 15
Place of publication Geneva, Switzerland
Publisher Inderscience Publishers
Collection year 2012
Language eng
Abstract As modern electronic devices become smaller, they are increasingly making use of thin film multi-scale structures consisting of nano-layers with very different material properties. This makes their mechanical behaviour at very small scales important in terms of machining. In this study, the deformation and removal characteristics of cross-sections of amorphous Si thin film solar panels were investigated at macro-, micro- and nano-scales using grinding, polishing and nanoscratching. Optical, electron, and atomic force microscopy were used to study the resulting deformation mechanisms and structures. Grinding achieved fast material removal but resulted in damage to the layers, while polishing obtained low material removal rate but the thin film layers of brittle material remained intact due to ductile mode behaviour. Nanoscratching was used to simulate the single cutting processes involved in grinding and polishing and demonstrated that brittle and ductile behaviours could be controlled by adjusting the load and tip geometry.
Keyword Deformation
Material removal
Solar panel
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
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Citation counts: Scopus Citation Count Cited 5 times in Scopus Article | Citations
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Created: Tue, 13 Dec 2011, 18:51:01 EST by Professor Han Huang on behalf of School of Mechanical and Mining Engineering