Research on femtosecond laser welding process of silver nanowire transparent electrodes
With the continuous development of flexible transparent electrodes, silver nanowires have been widely used due to their excellent optoelectronic properties and flexibility. However, their progress has been hindered by high contact resistance. In this study, femtosecond laser post-processing was appl...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423023372 |
| _version_ | 1797646618289242112 |
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| author | Cheng Chen Jiayue Zhou Hongxing Li Hongxia Lin Yong Peng Kehong Wang Xiaopeng Li |
| author_facet | Cheng Chen Jiayue Zhou Hongxing Li Hongxia Lin Yong Peng Kehong Wang Xiaopeng Li |
| author_sort | Cheng Chen |
| collection | DOAJ |
| description | With the continuous development of flexible transparent electrodes, silver nanowires have been widely used due to their excellent optoelectronic properties and flexibility. However, their progress has been hindered by high contact resistance. In this study, femtosecond laser post-processing was applied to the silver nanowire transparent electrodes, and the effect of laser power density on the welding of silver nanowires was investigated. The results showed that femtosecond laser could achieve welding between silver nanowires, but excessively high laser energy density could cause the melting of the nanowires. When the femtosecond laser energy density reached the critical energy density of approximately 2546 J·m−2, at which nanowires underwent spheroidization, the average sheet resistance of the silver nanowire electrodes was minimized to 18.89 Ω·sq−1, and the figure of merit (FoM) of the electrodes reached its maximum at 126.99, which was close to twice the initial value. Moreover, the non-uniformity factor (NUF) was also small, at 1.6%, indicating good conductivity and uniformity. Additionally, the influence of femtosecond laser irradiation on the transmittance of the silver nanowire transparent electrodes was insignificant, and the number of effective pulses had no obvious effect on the welding efficiency of the silver nanowires. |
| first_indexed | 2024-03-11T15:05:11Z |
| format | Article |
| id | doaj.art-d75a3aba143c4680ada9d3a775b00887 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:05:11Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d75a3aba143c4680ada9d3a775b008872023-10-30T06:04:58ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012691579168Research on femtosecond laser welding process of silver nanowire transparent electrodesCheng Chen0Jiayue Zhou1Hongxing Li2Hongxia Lin3Yong Peng4Kehong Wang5Xiaopeng Li6College of Materials Science and Technology, Nanjing University of Science and Technology, Nanjing 210014, ChinaCollege of Materials Science and Technology, Nanjing University of Science and Technology, Nanjing 210014, ChinaJiangsu Automation Research Institute, Lianyungang 222006, ChinaChina State Shipbuilding Corporation Huangpu Wenchong Shipbuilding Company Limited, Guangzhou 510715, ChinaCollege of Materials Science and Technology, Nanjing University of Science and Technology, Nanjing 210014, ChinaCollege of Materials Science and Technology, Nanjing University of Science and Technology, Nanjing 210014, ChinaCollege of Materials Science and Technology, Nanjing University of Science and Technology, Nanjing 210014, China; China State Shipbuilding Corporation Huangpu Wenchong Shipbuilding Company Limited, Guangzhou 510715, China; Corresponding author. No. 340 Building, School of Materials Science and Engineering, Nanjing University of Science and Technology, No. 200 Xiaolingwei Street, Xuanwu District, Nanjing 210094, Jiangsu, China.With the continuous development of flexible transparent electrodes, silver nanowires have been widely used due to their excellent optoelectronic properties and flexibility. However, their progress has been hindered by high contact resistance. In this study, femtosecond laser post-processing was applied to the silver nanowire transparent electrodes, and the effect of laser power density on the welding of silver nanowires was investigated. The results showed that femtosecond laser could achieve welding between silver nanowires, but excessively high laser energy density could cause the melting of the nanowires. When the femtosecond laser energy density reached the critical energy density of approximately 2546 J·m−2, at which nanowires underwent spheroidization, the average sheet resistance of the silver nanowire electrodes was minimized to 18.89 Ω·sq−1, and the figure of merit (FoM) of the electrodes reached its maximum at 126.99, which was close to twice the initial value. Moreover, the non-uniformity factor (NUF) was also small, at 1.6%, indicating good conductivity and uniformity. Additionally, the influence of femtosecond laser irradiation on the transmittance of the silver nanowire transparent electrodes was insignificant, and the number of effective pulses had no obvious effect on the welding efficiency of the silver nanowires.http://www.sciencedirect.com/science/article/pii/S2238785423023372Silver nanowiresFemtosecond laserEnergy densitySheet resistanceFoMEffective pulses |
| spellingShingle | Cheng Chen Jiayue Zhou Hongxing Li Hongxia Lin Yong Peng Kehong Wang Xiaopeng Li Research on femtosecond laser welding process of silver nanowire transparent electrodes Journal of Materials Research and Technology Silver nanowires Femtosecond laser Energy density Sheet resistance FoM Effective pulses |
| title | Research on femtosecond laser welding process of silver nanowire transparent electrodes |
| title_full | Research on femtosecond laser welding process of silver nanowire transparent electrodes |
| title_fullStr | Research on femtosecond laser welding process of silver nanowire transparent electrodes |
| title_full_unstemmed | Research on femtosecond laser welding process of silver nanowire transparent electrodes |
| title_short | Research on femtosecond laser welding process of silver nanowire transparent electrodes |
| title_sort | research on femtosecond laser welding process of silver nanowire transparent electrodes |
| topic | Silver nanowires Femtosecond laser Energy density Sheet resistance FoM Effective pulses |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423023372 |
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