Highly Stretchable LED Display Using Liquid Metal and Molybdenum-Barriered Multilayer Electrodes with Long-Term Reliability

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Electronic Materials Pub Date : 2024-12-20 DOI:10.1002/aelm.202400676

Masashi Miyakawa, Hiroshi Tsuji, Tatsuya Takei, Toshihiro Yamamoto, Yoshihide Fujisaki, Mitsuru Nakata

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引用次数: 0

Abstract

Promising freeform deformable displays require highly stretchable interconnection lines and reliable, low-resistance connections. To this end, a stretchable light-emitting diode (LED) display with a molybdenum-barriered multilayer electrode using liquid metal (LM) alloys with high reliability and stretchability under repeated deformations of 12 000 times and long-term stability over 300 days is introduced. The developed multilayer-stacked electrode shows consistent and stable stretchable electrical connections with long-term reliability, even under continuous mechanical deformation. Thus, the developed display with micro- or mini-LED components can be deformed, such as domes and twice folding like a handkerchief. Highly stretchable LM fine lines are developed by printing directly onto the acrylic adhesive layer, which enables high stretchability even under 100% uniaxial strain with a 100 µm narrow width. The stretchable display technology has successfully realized form-free displays that flexibly deform into 3D shapes for advanced wearable and freeform applications.

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来源期刊

Advanced Electronic Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.00

自引率

3.20%

发文量

433

期刊介绍： Advanced Electronic Materials is an interdisciplinary forum for peer-reviewed, high-quality, high-impact research in the fields of materials science, physics, and engineering of electronic and magnetic materials. It includes research on physics and physical properties of electronic and magnetic materials, spintronics, electronics, device physics and engineering, micro- and nano-electromechanical systems, and organic electronics, in addition to fundamental research.