| METALS AND METAL MATRIX COMPOSITES |
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| Flexible Transparent Conductive Film Based on Silk Fibroin and Silver Nanowires and Its Photoelectric Applications |
| XU Chuan1, YANGUAN Fusheng1, KONG Lingqing1, OUYANG Xinhua2, LIN Naibo1, LIU Xiangyang3
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1 Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials,Xiamen University, Xiamen 361005, China;
2 College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
3 Department of Physics, National University of Singapore, Singapore 117542 |
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Abstract Silk fibroin has excellent biocompatibility and can be used in fields such as biomedicine and tissue engineering. In order to explore the application of silk fibroin in different cross-cutting fields, we synthesized silver nanowires with a high aspect ratio, which were spin-coated on a glass substrate. Then, casted the regenerated silk fibroin solution, flexible conductive film with excellent sheet resistance and good light transmittance was obtained after drying. To explore the application in the field of optoelectronics, a simple organic solar cell was prepared by replacing the traditional ITO-glass substrate with the silver nanowires-silk fibroin (Ag-SF) film. The silver nanowires form a fully contacted grid, which are firmly coated with silk fibroin, the structure of Ag-SF film is not destroyed by the introduction of the silver nanowires. The transmissions of Ag-SF film at 550 nm decrease from 97% to 81% as the numbers of spin coatings of the silver nanowires solution increase. The square resistances of Ag-SF film decrease from the highest 33.6 Ω/sq to 6.0 Ω/sq with the increase of the numbers of spin coatings of the nano-silver wire solution. The photoelectric conversion efficiency of the organic solar cell is 4.78%, the open-circuit voltage is 0.67 V, and the short-circuit current is 15.22 mA/cm2.
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Published: 28 January 2021
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| Fund:The National Natural Science Foundation of China (51773171, 21705135), the Fujian Provincial Department of Science and Technology (2017J06019), NUS AcRF Tier 1 (R144-000-416-114), 111 Project (B16029), Science and Technology Project of Xiamen City (3502Z20183012), Science and Technology Planning Project of Guangdong Province (2018B030331001). |
About author:: Chuan Xustudied for master’s degree in College of Materials at Xiamen University from September 2017 to June 2020. The research focuses on silk fibroin based flexible electroluminescent device.
Naibo Linis currently an assistant professor at Xiamen University, in China. Based on the understanding of the correlation between the multi-level structure and properties of silk, optical materials are assembled into silk protein materials. By adjusting the interaction between additives and materials, silk materials are endowed with special optical properties, which are applied in biomedical field. As the first or corresponding author, he has published more than 20 papers, including Chem. Soc. Rev, Adv. Funct. Mater., iScience, Small, Nano-Micro Lett., Chem. Eng. J., etc. He has written chapters in two books published by Wiley-VCH and Woodhead Publishing, respectively. 11 patents are authorized. As principal investigator, he is awarded from Natural Science Foundation for distinguished young scholars in Fujian Province, and National Na-tural Science Foundation of China, etc. |
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2021, Vol. 35 
