Laser-Induced Graphene by Multiple Lasing: Toward Electronics on Cloth, Paper, and Food

Abstract

A simple and facile method for obtaining patterned graphene under ambient conditions on the surface of diverse materials ranging from renewable precursors such as food, cloth, paper, and cardboard to high-performance polymers like Kevlar or even on natural coal would be highly desirable. Here, we report a method of using multiple pulsed-laser scribing to convert a wide range of substrates into laser-induced graphene (LIG). With the increased versatility of the multiple lase process, highly conductive patterns can be achieved on the surface of a diverse number of substrates in ambient atmosphere. The use of a defocus method results in multiple lases in a single pass of the laser, further simplifying the procedure. This method can be implemented without increasing processing times when compared with laser induction of graphene on polyimide (Kapton) substrates as previously reported. In fact, any carbon precursor that can be converted into amorphous carbon can be converted into graphene using this multiple lase method. This may be a generally applicable technique for forming graphene on diverse substrates in applications such as flexible or even biodegradable and edible electronics.

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

“…Tour et al showed another example that commercial polyimide can be laser scribed into LSG by using a commercial CO 2 laser cutting machine ( Figure a) 225. Furthermore, they developed inert‐gas‐protected laser scribing and multiple laser scribing processes which enable the successful transformation from wood,226 cloth,227 bread into LSG (Figure 15b). Alshareef et al developed the LSG from natural lignin and used LSG as electrodes for high‐energy microsupercapacitors through a direct‐write lignin laser lithography technique 228.…”

A Highly Stretchable Microsupercapacitor Using Laser‐Induced Graphene/NiO/Co3O4 Electrodes on a Biodegradable Waterborne Polyurethane Substrate

“…[12] The I D /I G values of 0.79 and 0.64 are calculated from NiO/Co 3 O 4 /LIG and NiO/Co 3 O 4 -LIG-WPU, respectively, www.advmattechnol.de suggesting a relatively higher crystallized graphene without substantial structural defects was formed during the cocarbonization of gelatin-mediated ink and PI. [14] It is worth noting that the low-intensity peaks at low wavenumbers shows the evidence that the hybrid NiO/Co 3 O 4 nanoparticles existence, and the overall spectra is depicted in Figure S7 (Supporting Information). Whereas these characteristic peaks are not apparent after the transferring process since the mixed metal oxides were wrapped by the WPU thin layer.…”

“…[10,11] Laser direct writing, a noncontact, fast, and one-step fabrication technique does not need masks, postprocessing, or complicated external environments and is considered as an ideal candidate for fabricating MSCs. [14,15] The as-prepared LIG electrodes, with a large accessible area, could be subsequently assembled into MSCs. [14,15] The as-prepared LIG electrodes, with a large accessible area, could be subsequently assembled into MSCs.…”

Advances in Materials and Structures for Ingestible Electromechanical Medical Devices

“…[42] Graphene prepared using this technique can be integrated into energy storage devices such as supercapacitors (Figure 4). [42] Graphene prepared using this technique can be integrated into energy storage devices such as supercapacitors (Figure 4).…”