National Taiwan University

Improving production of GaN-based LEDs: Metalens takes ‘exceptional clear’ images of patterned sapphire substrate

By Lisa McDonald / July 23, 2021

Gallium nitride-based blue LEDs are typically grown on patterned sapphire substrates that are imaged using SEM and optical microscope systems to ensure the substrate has the correct structure. Researchers in Taiwan developed a new gallium nitride-based metalens that improves the clarity of substrate images.

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Other materials stories that may be of interest

By Lisa McDonald / March 31, 2021

Make quantum dots brighter, the secrets of printed electronics, and other materials stories that may be of interest for March 31, 2021.

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From mechanical behaviors to coloring mechanisms, modeling illuminates properties of ancient ceramics

By Jonathon Foreman / September 22, 2020

Modeling offers a way to learn about ancient ceramics without damaging the priceless items. Two recent articles in International Journal of Ceramic Engineering & Science illustrate how modeling provides insights into myriad properties, including mechanical behaviors and coloring mechanisms.

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Materials processing for advanced materials and sustainable development

By Eileen De Guire / July 1, 2016

Many excellent studies on material processing and characterization were included in the session “Powder Processing Innovation and Technologies for Advanced Materials and Sustainable Development” during the HTCMC-9, GFMAT 2016 conference in Toronto, Canada.

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Sensodyne sequel? Silica biomaterial may protect sensitive teeth better than bioglass

By April Gocha / January 20, 2015

A team led by researchers at National Taiwan University have generated and tested a gelatin-templated mesoporous silica biomaterial that shows good biocompatibility and longer-lasting effects to ease the pain of sensitive teeth.

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Other materials stories that may be of interest

By Jim Destefani / July 8, 2013

CMCs for power plant applications (Science Network Western Australia) Scientists at the School of Materials Science and Technology, China University of Geosciences (Beijing) and the School of Mechanical and Chemical Engineering,…

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