Sounds of Synthesis: Acoustic Real‐Time Analysis of Laser‐Induced Graphene
Abstract
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. Here a method is presented to enable analysis of LIG in real‐time during the synthesis using a microphone attached to the laser writing head, followed by a simple acoustic signal processing scheme. It is 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 13, 2022
- Source ID
- 10.1002/adfm.202110198
Entities
People
- Bing Deng
- Carter Kittrell
- Duy X. Luong
- Jacob L. Beckham
- James Tour
- John T. Li
- Victor D. Li
- Weiyin Chen
Organizations
- Air Force Office of Scientific Research
- Rice University