Phys.org January 19, 2022
Laser-induced graphene (LIG) can be patterned on a variety of substrates using a laser scriber/cutter. The quality and morphology of LIG is currently analyzed using Raman spectroscopy and electron microscopy. Researchers at Rice University have developed a new method to analyze LIG in real-time during the synthesis using a microphone attached to the laser writing head, followed by a simple acoustic signal processing scheme. They demonstrated that it is possible to use the same energy input to simultaneously drive the conversion process and probe the formation of LIG in situ by applying Fourier and integral analyses, thus allowing rapid, high-throughput determination of the local quality and morphology of the produced LIG…read more. Video TECHNICAL ARTICLEÂ
Rice University researchers have discovered that sound can be used to analyze the properties of laser-induced graphene in real time… Credit: Brandon Martin/Rice University.