Cargando…
Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates
In this paper we present the laser nanowelding process of silver nanowires (AgNWs) deposited on flexible polymer substrates by continuous wave (CW) lasers. CW lasers are cost-effective and can provide moderate power density, somewhere between nanosecond pulsed lasers and flash lamps, which is just e...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541505/ https://www.ncbi.nlm.nih.gov/pubmed/34684961 http://dx.doi.org/10.3390/nano11102511 |
_version_ | 1784589246816845824 |
---|---|
author | Xu, Li Weng, Wei-Chia Yeh, Ying-Chin |
author_facet | Xu, Li Weng, Wei-Chia Yeh, Ying-Chin |
author_sort | Xu, Li |
collection | PubMed |
description | In this paper we present the laser nanowelding process of silver nanowires (AgNWs) deposited on flexible polymer substrates by continuous wave (CW) lasers. CW lasers are cost-effective and can provide moderate power density, somewhere between nanosecond pulsed lasers and flash lamps, which is just enough to perform the nanowelding process efficiently and does not damage the nanowires on the polymer substrates. Here, an Nd:YAG CW laser (wavelength 532 nm) was used to perform the nanowelding of AgNWs on polyethylene terephthalate (PET) substrates. Key process parameters such as laser power, scan speed, and number of scans were studied and optimized, and mechanisms of observed phenomena are discussed. Our best result demonstrates a sheet resistance of 12 ohm/squ with a transmittance at λ = 550 nm of 92% for AgNW films on PET substrates. A transparent resistive heater was made, and IR pictures were taken to show the high uniformity of the CW laser nanowelded AgNW film. Our findings show that highly effective and efficient nanowelding can be achieved without the need of expensive pulse lasers or light sources, which may contribute to lower the cost of mass producing AgNWs on flexible substrates. |
format | Online Article Text |
id | pubmed-8541505 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85415052021-10-24 Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates Xu, Li Weng, Wei-Chia Yeh, Ying-Chin Nanomaterials (Basel) Article In this paper we present the laser nanowelding process of silver nanowires (AgNWs) deposited on flexible polymer substrates by continuous wave (CW) lasers. CW lasers are cost-effective and can provide moderate power density, somewhere between nanosecond pulsed lasers and flash lamps, which is just enough to perform the nanowelding process efficiently and does not damage the nanowires on the polymer substrates. Here, an Nd:YAG CW laser (wavelength 532 nm) was used to perform the nanowelding of AgNWs on polyethylene terephthalate (PET) substrates. Key process parameters such as laser power, scan speed, and number of scans were studied and optimized, and mechanisms of observed phenomena are discussed. Our best result demonstrates a sheet resistance of 12 ohm/squ with a transmittance at λ = 550 nm of 92% for AgNW films on PET substrates. A transparent resistive heater was made, and IR pictures were taken to show the high uniformity of the CW laser nanowelded AgNW film. Our findings show that highly effective and efficient nanowelding can be achieved without the need of expensive pulse lasers or light sources, which may contribute to lower the cost of mass producing AgNWs on flexible substrates. MDPI 2021-09-27 /pmc/articles/PMC8541505/ /pubmed/34684961 http://dx.doi.org/10.3390/nano11102511 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Xu, Li Weng, Wei-Chia Yeh, Ying-Chin Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title | Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title_full | Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title_fullStr | Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title_full_unstemmed | Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title_short | Continuous Wave Laser Nanowelding Process of Ag Nanowires on Flexible Polymer Substrates |
title_sort | continuous wave laser nanowelding process of ag nanowires on flexible polymer substrates |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541505/ https://www.ncbi.nlm.nih.gov/pubmed/34684961 http://dx.doi.org/10.3390/nano11102511 |
work_keys_str_mv | AT xuli continuouswavelasernanoweldingprocessofagnanowiresonflexiblepolymersubstrates AT wengweichia continuouswavelasernanoweldingprocessofagnanowiresonflexiblepolymersubstrates AT yehyingchin continuouswavelasernanoweldingprocessofagnanowiresonflexiblepolymersubstrates |