Title |
UV Treatment of Flexible Copper Nanowire Mesh Films for Transparent Conductor Applications
|
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Published in |
Discover Nano, October 2017
|
DOI | 10.1186/s11671-017-2343-y |
Pubmed ID | |
Authors |
Quentin Lonne, Jose Endrino, Zhaorong Huang |
Abstract |
Copper nanowires have the potential to reach and even exceed the indium tin oxide performances as flexible transparent conductive electrodes. However, for a large-scale production, they need to be fabricated in a high-speed, low-cost way, without degrading the flexible substrate. One of the major bottlenecks resides in the post-treatment used to remove organic residues from the surface of the nanowires after forming the transparent electrode, which is necessary to obtain high optoelectronic performances. Here, we propose an ultra-violet irradiation and a subsequent acetic acid bath as an easy, scalable, fast post-treatment. After only 2 min of ultra-violet treatment, followed by 10 min of acid bath, an Rs of 42 Ω sq(-1) and a T 550 nm of 87% were measured. Besides, copper nanowire electrodes maintained their high transparency in the range 750-2500 nm, which makes them good candidates for applications such as infrared solar cells. |
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