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

Journal Article


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.

UOW Authors


  •   Bo, Guyue (external author)
  •   Cheng, Ningyan (external author)
  •   Dou, Shi
  •   Du, Yi
  •   Feng, Haifeng (external author)
  •   Ren, Long (external author)
  •   Xu, Xun

Publication Date


  • 2021

Citation


  • Bo, G., Yu, H., Ren, L., Cheng, N., Feng, H., Xu, X., . . . Du, Y. (2021). Gallium-Indium-Tin Liquid Metal Nanodroplet-Based Anisotropic Conductive Adhesives for Flexible Integrated Electronics. ACS Applied Nano Materials, 4(1), 550-557. doi:10.1021/acsanm.0c02870

Scopus Eid


  • 2-s2.0-85099773140

Start Page


  • 550

End Page


  • 557

Volume


  • 4

Issue


  • 1

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.

UOW Authors


  •   Bo, Guyue (external author)
  •   Cheng, Ningyan (external author)
  •   Dou, Shi
  •   Du, Yi
  •   Feng, Haifeng (external author)
  •   Ren, Long (external author)
  •   Xu, Xun

Publication Date


  • 2021

Citation


  • Bo, G., Yu, H., Ren, L., Cheng, N., Feng, H., Xu, X., . . . Du, Y. (2021). Gallium-Indium-Tin Liquid Metal Nanodroplet-Based Anisotropic Conductive Adhesives for Flexible Integrated Electronics. ACS Applied Nano Materials, 4(1), 550-557. doi:10.1021/acsanm.0c02870

Scopus Eid


  • 2-s2.0-85099773140

Start Page


  • 550

End Page


  • 557

Volume


  • 4

Issue


  • 1