Journal
ADVANCED MATERIALS INTERFACES
Volume 4, Issue 23, Pages -Publisher
WILEY
DOI: 10.1002/admi.201700937
Keywords
antimony-doped tin oxide; metallization; NIR pulsed laser; polymer
Funding
- National Natural Science Foundation of China [51773126, 51473104]
- Outstanding Youth Foundation of Sichuan Province [2017JQ0006]
- State Key Laboratory of Polymer Materials Engineering [sklpme2016-3-10]
Ask authors/readers for more resources
In this work, a facile strategy is presented for the fabrication of precisely metallized patterns on polymer substrate based on the copper-free laser sensitizer through laser direct structuring (LDS) technology. A series of characterization methods are carried out to investigate the surface chemistry and morphology of polymer/antimony-doped tin oxide (ATO) composites after laser activation and selective metallization. X-ray photoelectron spectroscopy results show that a small part of Sn4+ and Sb5+ in ATO is reduced to Sn2+ and Sb3+, and it does not detect any Sn-0 (elemental tin) after laser activation. This study confirms that ATO is a good copper-free laser sensitizer and an efficient catalyst for selective metallization. Furthermore, the obtained copper layer is anchoring into the substrate leading to a superior adhesion property (highest 5 B level after Scotch tape test) between the copper layer and polymer substrate. Meanwhile, the obtained copper circuit line exhibits high conductivity (1.26 x 10(7) Omega(-1) m(-1)) and excellent stability over time. This study also provides a guideline to develop copper-free laser sensitizer for LDS technology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available