Entries with tag elastic electronic material.

US Researchers Improve Graphene’s Stretchability

North Carolina State University and University of Texas researchers have developed a technique to make graphene more useful in a wider range of applications by making it more stretchable. This would enable graphene—a one-atom thick layer of the mineral graphite known for being conductive and strong—to be used in flexible or stretchable electronics and nanocomposite materials, which are new materials made from combining known substances. After applying a single layer of graphene to an elastic polymer substrate, the researchers stretched the material and examined it. They saw that, when the elastic returned to its original length, the graphene monolayer buckled. These ridges, which look similar to the bellows of an accordion, made the graphene more stretchable. They also studied how much graphene can be deformed by stretching before the interface between the materials fails, according to NCSU associate professor Yong Zhu. The scientists published their work in Advanced Functional Materials. (EurekAlert)(North Carolina State University)(Advanced Functional Materials)

Researchers Develop Stretchy Electronic Material

An international research team has developed a material that can be used to create electronics capable of stretching to more than double their original size. Scientists from Northwestern University’s McCormick School of Engineering, the Korea Advanced Institute of Science and Technology, Dalian University of Technology in China, and the University of Illinois at Urbana-Champaign created the new material by combining a porous polymer (porous polydimethylsiloxane) and a liquid metal (eutectic gallium-indium). This combination lets electricity flow consistently through the device, even when it is being stretched. Loss of conductivity is a common problem with existing stretchable electronics. The researchers said the new material is four times stretchier than conventional elastic electronics materials. They noted that healthcare and other applications could use stretchy devices. They published their research in Nature Communications. (EurekAlert)(Northwestern University)(Nature Communications)

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