Tag Archive for 'Indium'

Bottom-up nano- to micro-fabrication is crucial in modern electronics and optics. Conventional multi-scale array fabrication techniques, however, are facing challenges in reconciling the contradiction between the pursuit of better device performance and lowering the fabrication cost and/or energy consumption. Chang et al. introduce a facile mixed-metal array fabrication method based on guided self-assembly of polymerizing organometallic adducts derived from the passivating oxides of a ternary liquid metal to create mixed metal wires. Image credit: Julia Chang.

Researchers Demonstrate New Technique for Self-Assembling Electronics

Dec 5, 2024 by News Staff

The new proof-of-concept work, published in the journal Materials Horizons, paves the way for self-assembling more complex electronic devices without relying...

Xing et al. report printable metallic gels (pendular suspensions) consisting of an aqueous suspension of copper particles connected by bridges of liquid eutectic gallium indium alloy (EGaIn). Pendular suspensions rely on capillary forces to form networks between solid particles with a composition-dependent rheology, but prior studies have focused on insulating suspensions. Here, the rheology of a conductive solid-liquid-liquid suspension is tuned for 3D printing by varying the composition and the pH; the latter promotes metallic wetting. The dry printed parts have metallic electrical conductivity without requiring a sintering step. Drying at elevated temperatures can accelerate the removal of water while creating stress that drives shape change (i.e., 4D printing). As a demonstration, the authors print a conductive spider that lifts and assembles its own body from an initially flat shape. Such conductive inks are promising for printing metallic structures under ambient conditions. Image credit: Xing et al., doi: 10.1016/j.matt.2023.06.015.

Scientists Develop Metallic Gel for Conductive 3D and 4D Printing

Jul 6, 2023 by News Staff

Materials scientists at the North Carolina State University have connected copper particles with gallium indium alloy bridges to form a conductive printing...

High-precision mass measurements of neutron-deficient indium isotopes with ISOLTRAP: radioactive atoms were produced by nuclear reactions of 1.4 GeV protons impinging on a thick lanthanum carbide target; short-lived indium atoms diffusing from the target were selectively ionized using a two-step laser excitation scheme, provided by the ISOLDE RILIS, which excited one electron above the indium ionization potential (IP); the extracted ion beam was mass separated and injected into a radiofrequency quadrupole (RFQ) ion trap sitting on a high-voltage (HV) platform, where it was bunched and cooled; the beam was then processed by an MR-ToF MS to separate the indium ions from the isobaric contaminants; when the precision Penning trap was used for the mass measurement, further cooling and purification of the beam was achieved using a helium buffer-gas-filled preparation Penning trap; a position-sensitive microchannel plate (MCP) detector was used to record the time of flight and/or the position of the ion after ejection from the precision Penning trap; in the case of indium-99, for which the production yield was too low, the MR-ToF MS was used to perform the mass measurement. Image credit: Mougeot et al., doi: 10.1038/s41567-021-01326-9.

CERN Physicists Measure Masses of Exotic Indium Nuclei

Sep 27, 2021 by News Staff

The isotope tin-100 is of interest for nuclear structure due to its closed-shell proton and neutron configurations. It is also the heaviest nucleus comprising...

Due to the local terbium environment in TbInO3, a honeycomb lattice of terbium spins emerges in the crystal structure upon cooling. Image credit: Clark et al, doi: 10.1038/s41567-018-0407-2.

Signs of Exotic ‘Quantum Spin Liquid’ Observed in Unexpected Material

Jan 24, 2019 by News Staff

The perovskite-related metal oxide TbInO3 exhibits an exotic state of matter called quantum spin liquid, according to a team of researchers from the University...

$Gallium indium forms fractal patterns with the application of low voltage. Image credit: North Carolina State University.$

Voltage-Driven Liquid Metal Forms Snowflake-Like Fractals

Oct 31, 2017 by News Staff

A team of scientists at North Carolina State University has demonstrated that a gallium-based liquid metal alloy forms snowflake-like fractal patterns...

This image shows the liquid metal antenna. Image credit: Jacob Adams.

Scientists Create Liquid Metal Antenna

May 21, 2015 by News Staff

A group of researchers headed by Dr Jacob Adams of North Carolina State University’s Department of Electrical and Computer Engineering has created a...