Since its discovery, laser-induced graphene (LIG) has attracted much interest because this technique, having all the advantages of a laser processing technology, is more convenient and cost-effective than other graphene production methods. This work offers a detailed analysis of LIG structures produced by UV and CO2 laser irradiation from polyimide performed with surface scanning Raman spectroscopy combined with microscopy techniques. Although UV LIG has a less ordered structure than that obtained by CO2 laser irradiation, our study indicates that UV LIG can be patterned with a resolution higher than that obtained with CO2 laser irradiation and a much smaller penetration depth into the substrate.
CO2 and UV Laser-Induced Graphene Based on Polymer Transformation: Advanced Characterizations by 2D Raman Mapping Combined with Microscopy Techniques
Botti S.;Bonfigli F.;Nigro V.;Rufoloni A.;Vannozzi A.
2025-01-01
Abstract
Since its discovery, laser-induced graphene (LIG) has attracted much interest because this technique, having all the advantages of a laser processing technology, is more convenient and cost-effective than other graphene production methods. This work offers a detailed analysis of LIG structures produced by UV and CO2 laser irradiation from polyimide performed with surface scanning Raman spectroscopy combined with microscopy techniques. Although UV LIG has a less ordered structure than that obtained by CO2 laser irradiation, our study indicates that UV LIG can be patterned with a resolution higher than that obtained with CO2 laser irradiation and a much smaller penetration depth into the substrate.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
