High-Performance Flexible Transparent Electrodes Fabricated via Laser Nano-Welding of Silver Nanowires

Crystals

Yongman Pan¹  Jing He¹  Xi Li¹  Qian Li¹  Xiaohua Zhang¹  Yinzhou Yan¹  Liye Zhu¹  Tao Wang²  Xiaoxia Zhang²  Yue Wang² 

[1] Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China;Faculty of Science, Beijing University of Technology, Beijing 100124, China;

关键词: flexible transparent electrodes;    silver nanowires;    laser nano-welding;    organic electronics;   

DOI  :  10.3390/cryst11080996

来源: DOAJ

【 摘 要 】

Silver nanowires (Ag-NWs), which possess a high aspect ratio with superior electrical conductivity and transmittance, show great promise as flexible transparent electrodes (FTEs) for future electronics. Unfortunately, the fabrication of Ag-NW conductive networks with low conductivity and high transmittance is a major challenge due to the ohmic contact resistance between Ag-NWs. Here we report a facile method of fabricating high-performance Ag-NW electrodes on flexible substrates. A 532 nm nanosecond pulsed laser is employed to nano-weld the Ag-NW junctions through the energy confinement caused by localized surface plasmon resonance, reducing the sheet resistance and connecting the junctions with the substrate. Additionally, the thermal effect of the pulsed laser on organic substrates can be ignored due to the low energy input and high transparency of the substrate. The fabricated FTEs demonstrate a high transmittance (up to 85.9%) in the visible band, a low sheet resistance of 11.3 Ω/sq, high flexibility and strong durability. The applications of FTEs to 2D materials and LEDs are also explored. The present work points toward a promising new method for fabricating high-performance FTEs for future wearable electronic and optoelectronic devices.

【 授权许可】

Unknown