Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy materials

Wang, Lei; Jing, Liu

doi:10.1007/s11708-013-0271-9

Cited by 35 publications

(16 citation statements)

References 77 publications

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“…Moreover, the solidification of gallium remains an issue. Due to the relatively large supercooling degree of gallium, it requires a much lower temperature and longer time for complete solidification, which also present difficulties in creating freestanding gallium structures . In short, those intrinsic properties of gallium pose severe challenges for its wide applications in 3D printing.…”

Section: Introductionmentioning

confidence: 99%

Electrochemically Enabled Embedded Three-Dimensional Printing of Freestanding Gallium Wire-like Structures

Wang

Liu

et al. 2020

ACS Appl. Mater. Interfaces

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The ability to pattern planar and freestanding 3D metallic architectures would enable numerous applications, including flexible electronics, displays, sensors, and antennas. Low melting point metals, such as gallium, have recently drawn considerable attention especially in the fields of flexible and stretchable electronics and devices owing to its unique properties, such as excellent electrical conductivity and fluidity. However, the large surface tension, low viscosity, and large density pose great challenges to 3D printing of freestanding gallium structures in a large scale, which hinder its further applications. In this article, we first propose an electrochemically enabled embedded 3D printing (3e-3DP) method for creating planar and freestanding gallium wire-like structures assisted with supporting hydrogel. After an enhanced solidification process and the removal of hydrogel, various freestanding 2D and 3D wire-like structures are realized. By simply reassembling the gallium structure into soft elastomer, a gallium-based flexible conductor and a 3D-spiral pressure sensor are demonstrated. Above all, this study presents a brand-new and economical way for the fabrication of 2D and 3D freestanding gallium structures, which has great prospects in wide applications in flexible and stretchable electronics and devices.

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Section: Introductionmentioning

confidence: 99%

Electrochemically Enabled Embedded Three-Dimensional Printing of Freestanding Gallium Wire-like Structures

Wang

Liu

et al. 2020

ACS Appl. Mater. Interfaces

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“…Regarding the electronic inks, the liquid metal materials genome project as raised in ( Wang and Liu, 2013 ) would help find more liquid metal candidates with better properties in the future. Meanwhile, it is necessary to explore recyclable strategies in many aspects including reducing costs.…”

Section: Discussion and Prospectsmentioning

confidence: 99%

Pervasive liquid metal printed electronics: From concept incubation to industry

Chen

Jing

2021

iScience

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“…As to the newly liquid metal printing ink, the way to increase ink types lies in developing more and more low melting point alloys or liquid metal-based conductive composites. (Wang and Liu, 2013) has put forward the concept of liquid metal material genome initiative, which is aimed to discover advanced functional alloys with low melting point with the help of physical and chemical methods. Liquid metal family can be expanded through reorganization of existing elemental metals or alloys.…”

Section: Prospectmentioning

confidence: 99%

Advances in the Development of Liquid Metal-Based Printed Electronic Inks

Wang

Liu

2019

Front. Mater.

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As a newly emerging additive manufacturing technology, printed electronics based on the printing principle has received more and more attention. Compared to conventional electronics manufacturing, such technique has many advantages such as speediness, flexibility, personalized customization, and low cost. Currently, there are three kinds of typical conductive inks used in printed electronics-conductive carbon ink, conductive polymer, and metal conductive ink. However, the electrical conductivities of the conductive carbon ink and the conductive polymer are typically lower than 10 5 S/m, which impedes their application in high-sensitivity circuit fabrication. As to the metal conductive ink, post-treatments via long time curing process are often needed, which reduce the printing speed and improve the manufacturing costs. As an alternative, liquid metal is emerging as a new class of conductive ink and is thus becoming an important research focus. Such material has unique merits such as high electrical conductivity, simple preparation process, requesting no post-processing after printing, and so on. To further push forward the research on liquid metal-based printed electronics, this article strives to present an overview on the related research advancement in recent years. Properties of liquid metal such as oxidation, wettability, and conductivity are discussed. Liquid metal techniques including tapping mode electronic printing, atomized spray printing, microcontact printing, laser sintering method of liquid metal nanoparticles, transfer printing, masked deposition, liquid metal corrosion sculpture method, colorful liquid metal circuit fabrication method, and hybrid rolling and transfer printing method are systematically expounded. Prospective direction worth pursuing is outlined.

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Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy materials

Cited by 35 publications

References 77 publications

Electrochemically Enabled Embedded Three-Dimensional Printing of Freestanding Gallium Wire-like Structures

Electrochemically Enabled Embedded Three-Dimensional Printing of Freestanding Gallium Wire-like Structures

Pervasive liquid metal printed electronics: From concept incubation to industry

Advances in the Development of Liquid Metal-Based Printed Electronic Inks

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