DataVXACS Applied Nano MaterialsPaper
journal article·2021-01-22Open access

Gallium–Indium–Tin Liquid Metal Nanodroplet-Based Anisotropic Conductive Adhesives for Flexible Integrated Electronics

Guyue Bo, Huiwu Yu, Long Ren, Ningyan Cheng, Haifeng Feng, Xun Xu, Shi Xue Dou, Hongqiang Wang, Yi Du

ACS Applied Nano Materials· Volume 4· Issue 1
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Source abstract

Abstract

Compared with traditional solder joint bonding, an anisotropic conductive adhesive (ACA) provides an efficient and simple method for the interconnection of small-scale electronics. The wider application of ACAs for nanoelectronics is still suppressed, however, by the lack of durable and cost-effective conductive components. Herein, a series of core–shell eutectic gallium–indium–tin liquid metal (LM) nanodroplets (NDs) with different diameters have been successfully synthesized and regulated by a combination of laser irradiation and sonication. Due to their high conductivity and good fluidity, these LM NDs were used as soft conductive filler micro/nanoparticles for fabricating ACAs. The as-prepared ND-based ACAs present satisfactory anisotropic conductivity when used to interconnect small-scale electronic circuits. Highly durable anisotropic electrical performance was also maintained in flexible packed devices, even under bending or twisting operation modes.
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Research context

Nanomaterials

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Nanomaterials and Printing Technologies · Electronic Packaging and Soldering Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Superconducting and Electronic Materials University of Wollongong, Wollongong, New South Wales 2500, Australia

School of Physics, Northwest University, Xi’an 710127 P. R. China

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070 P. R. China

State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi’an 710072, P. R. China

Funding

Australian Research Council · National Natural Science Foundation of China

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