Abstract:
:We investigate the growth of Cu films on two different Cu seed layers: one with regular <111>-oriented grains and the other with very strong <111>-preferred orientation. It is found that densely-packed nanotwinned Cu (nt-Cu) can be grown by pulsed electroplating on the strong <111>-oriented Cu seed layer without a randomly-oriented transition layer between the nt-Cu and the Cu seed layer. The electroplated nt-Cu grow almost epitaxially on the seed layer and formed <111>-oriented columnar structures. However, with the regular <111>-oriented Cu seed, there is a randomly-oriented transition layer between the nt-Cu and the regular <111>-oriented Cu seed. The results indicate that the seed layer plays a crucial role on the regularity of <111>-oriented nanotwinned Cu.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Liu CM,Lin HW,Lu CL,Chen Cdoi
10.1038/srep06123subject
Has Abstractpub_date
2014-08-19 00:00:00pages
6123issn
2045-2322pii
srep06123journal_volume
4pub_type
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