Nano-Micro Letters, Volume. 16, Issue 1, 092(2024)

Flexible, Transparent and Conductive Metal Mesh Films with Ultra-High FoM for Stretchable Heating and Electromagnetic Interference Shielding

Zibo Chen1、†, Shaodian Yang1、†, Junhua Huang1, Yifan Gu1, Weibo Huang1, Shaoyong Liu1, Zhiqiang Lin2, Zhiping Zeng3, Yougen Hu2, Zimin Chen1, Boru Yang1、*, and Xuchun Gui1、**
Author Affiliations
  • 1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
  • 2Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 Guangdong, People’s Republic of China
  • 3School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
  • show less

    Despite the growing demand for transparent conductive films in smart and wearable electronics for electromagnetic interference (EMI) shielding, achieving a flexible EMI shielding film, while maintaining a high transmittance remains a significant challenge. Herein, a flexible, transparent, and conductive copper (Cu) metal mesh film for EMI shielding is fabricated by self-forming crackle template method and electroplating technique. The Cu mesh film shows an ultra-low sheet resistance (0.18 Ω □-1), high transmittance (85.8%@550 nm), and ultra-high figure of merit (> 13,000). It also has satisfactory stretchability and mechanical stability, with a resistance increases of only 1.3% after 1,000 bending cycles. As a stretchable heater (ε > 30%), the saturation temperature of the film can reach over 110 °C within 60 s at 1.00 V applied voltage. Moreover, the metal mesh film exhibits outstanding average EMI shielding effectiveness of 40.4 dB in the X-band at the thickness of 2.5 μm. As a demonstration, it is used as a transparent window for shielding the wireless communication electromagnetic waves. Therefore, the flexible and transparent conductive Cu mesh film proposed in this work provides a promising candidate for the next-generation EMI shielding applications.

    Tools

    Get Citation

    Copy Citation Text

    Zibo Chen, Shaodian Yang, Junhua Huang, Yifan Gu, Weibo Huang, Shaoyong Liu, Zhiqiang Lin, Zhiping Zeng, Yougen Hu, Zimin Chen, Boru Yang, Xuchun Gui. Flexible, Transparent and Conductive Metal Mesh Films with Ultra-High FoM for Stretchable Heating and Electromagnetic Interference Shielding[J]. Nano-Micro Letters, 2024, 16(1): 092

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Aug. 10, 2023

    Accepted: Nov. 21, 2023

    Published Online: Jan. 23, 2025

    The Author Email: Yang Boru (yangboru@mail.sysu.edu.cn), Gui Xuchun (guixch@mail.sysu.edu.cn)

    DOI:10.1007/s40820-023-01295-z

    Topics