Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires
Abstract Silver nanowires (AgNWs) with a low diameter, high aspect ratio, stable suspension, and easy synthesis have recently attracted the optoelectronic industry as a low-cost alternative to indium tin oxide transparent conductive films. However, silver nanowires are not chemically stable, and the...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-10-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-44674-7 |
| _version_ | 1797453281043152896 |
|---|---|
| author | Mostafa Gholami Fariba Tajabadi Nima Taghavinia Alireza Moshfegh |
| author_facet | Mostafa Gholami Fariba Tajabadi Nima Taghavinia Alireza Moshfegh |
| author_sort | Mostafa Gholami |
| collection | DOAJ |
| description | Abstract Silver nanowires (AgNWs) with a low diameter, high aspect ratio, stable suspension, and easy synthesis have recently attracted the optoelectronic industry as a low-cost alternative to indium tin oxide transparent conductive films. However, silver nanowires are not chemically stable, and their conductivity diminishes over time due to reactions with atmospheric components. This is a bottleneck for their wide industrial applications. In this study, we aim to address this issue by synthesizing silver nanowires with an average diameter of approximately 65 nm and a length of approximately 13 µm. The prepared Ag nanowires are then applied to fabricate transparent, flexible, and chemically stable conductive films. The fabrication includes spraying of silver nanowires suspension on a glass substrate followed by Dr. blade coating of polystyrene (PS) solution and delamination of the PS-AgNWs film. The resulting film exhibits an optimum sheet resistance of 24 Ω/□ and transmittance of 84%. To further enhance the stability of the transparent conductive film, the facial and scalable double pulse electrodeposition method is used for coating of gold on the exposed surface of the AgNWs embedded in PS. The final transparent film with gold coating demonstrates a remarkable stability under harsh conditions including long exposure to UV light and nitric acid solution. After 100 min of UV/Ozone treatment, the increase in sheet resistance of the optimal PS-AgNW@Au sample is 15.6 times lower than the samples without gold coating. In addition, the change in sheet resistance after 2000 bending cycles in the optimal PS-AgNW@Au electrode is measured and it showed an increase of only 22% of its initial sheet resistance indicating its good flexibility. The proposed electrode performs an excellent chemical stability, good conductivity, transparency, and flexibility that makes it a potential candidate for various optoelectronic devices. |
| first_indexed | 2024-03-09T15:19:36Z |
| format | Article |
| id | doaj.art-7b11f50329e44756ac30c9776c9c5bf9 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-09T15:19:36Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7b11f50329e44756ac30c9776c9c5bf92023-11-26T12:52:04ZengNature PortfolioScientific Reports2045-23222023-10-0113111010.1038/s41598-023-44674-7Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowiresMostafa Gholami0Fariba Tajabadi1Nima Taghavinia2Alireza Moshfegh3Department of Physics, Sharif University of TechnologyDepartment of Nanotechnology and Advanced Materials, Materials and Energy Research CenterDepartment of Physics, Sharif University of TechnologyDepartment of Physics, Sharif University of TechnologyAbstract Silver nanowires (AgNWs) with a low diameter, high aspect ratio, stable suspension, and easy synthesis have recently attracted the optoelectronic industry as a low-cost alternative to indium tin oxide transparent conductive films. However, silver nanowires are not chemically stable, and their conductivity diminishes over time due to reactions with atmospheric components. This is a bottleneck for their wide industrial applications. In this study, we aim to address this issue by synthesizing silver nanowires with an average diameter of approximately 65 nm and a length of approximately 13 µm. The prepared Ag nanowires are then applied to fabricate transparent, flexible, and chemically stable conductive films. The fabrication includes spraying of silver nanowires suspension on a glass substrate followed by Dr. blade coating of polystyrene (PS) solution and delamination of the PS-AgNWs film. The resulting film exhibits an optimum sheet resistance of 24 Ω/□ and transmittance of 84%. To further enhance the stability of the transparent conductive film, the facial and scalable double pulse electrodeposition method is used for coating of gold on the exposed surface of the AgNWs embedded in PS. The final transparent film with gold coating demonstrates a remarkable stability under harsh conditions including long exposure to UV light and nitric acid solution. After 100 min of UV/Ozone treatment, the increase in sheet resistance of the optimal PS-AgNW@Au sample is 15.6 times lower than the samples without gold coating. In addition, the change in sheet resistance after 2000 bending cycles in the optimal PS-AgNW@Au electrode is measured and it showed an increase of only 22% of its initial sheet resistance indicating its good flexibility. The proposed electrode performs an excellent chemical stability, good conductivity, transparency, and flexibility that makes it a potential candidate for various optoelectronic devices.https://doi.org/10.1038/s41598-023-44674-7 |
| spellingShingle | Mostafa Gholami Fariba Tajabadi Nima Taghavinia Alireza Moshfegh Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires Scientific Reports |
| title | Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires |
| title_full | Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires |
| title_fullStr | Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires |
| title_full_unstemmed | Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires |
| title_short | Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires |
| title_sort | chemically stable flexible transparent electrode gold electrodeposited on embedded silver nanowires |
| url | https://doi.org/10.1038/s41598-023-44674-7 |
| work_keys_str_mv | AT mostafagholami chemicallystableflexibletransparentelectrodegoldelectrodepositedonembeddedsilvernanowires AT faribatajabadi chemicallystableflexibletransparentelectrodegoldelectrodepositedonembeddedsilvernanowires AT nimataghavinia chemicallystableflexibletransparentelectrodegoldelectrodepositedonembeddedsilvernanowires AT alirezamoshfegh chemicallystableflexibletransparentelectrodegoldelectrodepositedonembeddedsilvernanowires |