영어로 읽는 과학기사 A Korean research team recently developed a technology for accurately analyzing the mechanical properties of nano structure. Analysts say that this achievement constitutes the development of a new foundational technology that allows for more reliable design, production and operation of super-quality nano devices.
The study was led by Profs. Jang Jae-il and Park Won-il of the Division of Materials Science & Engineering at Hanyang University, with participation from Dr. Choi In-suk of the Korea Institute of Science and Technology (KIST). It was conducted with the support of the Veteran Researcher Assistance Program (Core Research) implemented by the Ministry of Education, Science and Technology, and the National Research Foundation of Korea (Chairman Oh Se-jung). The study was published in the January issue (January 21) of 'Advanced Functional Materials.'
The research team led by Profs. Jang Jae-il and Park Won-il employed the most diverse (in terms of size and scope) range of nanowire in experimentations to date, developed technology that allows for the most accurate measurement of the mechanical properties of nanowire, and successfully established the size of nanowire that affects mechanical properties.
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▲ Silicone nanowire | Researchers around the world have conducted various research projects to find ways to analyze the mechanical properties of nano structure. But those studies have revealed major errors in inducing property values, which led to major discrepancies in analysis results.
The research team simultaneously conducted the atomic force microscopy (AFM) bending test, which is drawing keen attention as a nanomechanical test, and the nanoindentation test, thus analyzing the mechanical properties of nanowire. Afterwards, based on results that were generated under diverse experimental conditions and analytical methods, they discovered the method that could most accurately measure the mechanical properties of nanowire.
Also, the researchers conducted experiments on nanowire comprising an extensive scope of sizes, and thus systematically analyzed the "size effect of nanowire that affects mechanical properties," an issue that has been heatedly debated of late.
In explaining the significance of the study, Prof. Jang said, "By establishing a method for analyzing the mechanical properties of nanowire, we have taken a step closer to securing the credibility of next-generation nano devices that are based on nanowire."
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