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Synchronously improved reliability, figure of merit and adhesion of flexible copper nanowire networks by chitosan transition
| Content Provider | Scilit |
|---|---|
| Author | Sun, Yongtao Du, Chaoping Wu, Muying Zhao, Le Yu, Shihui Gong, Baoming Ding, Qian |
| Copyright Year | 2020 |
| Description | Journal: Nanotechnology Copper nanowires (CuNWs) are remarkable components that can replace indium tin oxide (ITO) as transparent electrodes due to their low cost, high conductivity and acceptable transmittance. However, a common coating method can cause poor electrical, optical and adhesively properties because of the creation of loosely connected junctions. In addition, the dissatisfactory thermal and environmental stabilities also limit the practical applications. These problems should be overcome in CuNW-based films for reliable transparent electrodes through material and engineering approaches. In this work, a novel transparent composite electrode composed of chitosan and CuNWs on flexible polyethylene terephthalate (PET) substrate, with synchronously strengthened adhesion, heightened transmittance, reduced resistivity, improved flexibility, enhanced thermal stability and increased environmental stability, is prepared without vacuum processing and high-temperature annealing. The effects of the number of CuNW network layers and chitosan concentration on the performance of chitosan/CuNWs composite transparent electrodes were studied. The resulting electrodes exhibit an excellent conductivity (sheet resistance: 15.6 Ω/sq.) and a superior optical transmittance (~87%) at 550 nm. Calculation of figure of merit (FOM) displays a high value of 168, which is the highest among all the reported CuNW-based transparent electrodes. Meanwhile, the sheet resistance does not show great change after 10 tape tests and 10000 bending cycles, suggesting good adhesion to PET substrate and outstanding mechanical flexibility. Moreover, the composite transparent electrodes show a good stability to resist long-term storage and thermal environment. |
| Related Links | https://iopscience.iop.org/article/10.1088/1361-6528/ab967b/pdf |
| ISSN | 09574484 |
| e-ISSN | 13616528 |
| DOI | 10.1088/1361-6528/ab967b |
| Journal | Nanotechnology |
| Issue Number | 37 |
| Volume Number | 31 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-05-26 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nanotechnology Transparent Electrodes |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering |
