Defect-initiated formation mechanism of 3D carbon tracks on flexible transparent substrates by laser irradiation

Hayashi, Shuichiro; Du, Xiaohan; Rupp, Marco; Filsinger, Kai A.; Terakawa, Mitsuhiro; Arnold, Craig B.

doi:10.1016/j.optlastec.2024.110686

Optics & Laser Technology

2024

DOI: 10.1016/j.optlastec.2024.110686

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Defect-initiated formation mechanism of 3D carbon tracks on flexible transparent substrates by laser irradiation

Shuichiro Hayashi,

Xiaohan Du,

Marco Rupp

et al.

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2024

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Cited by 3 publications

References 39 publications

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Laser Upcycling of Hemoglobin Protein Biowaste into Engineered Graphene Aerogel Architectures for 3D Supercapacitors

Hayashi,

Rupp,

Liu

et al. 2024

Advanced Science

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Graphene aerogels (GAs) with engineered architectures are a promising material for applications ranging from filtration to energy storage/conversion. However, current preparation approaches involve the combination of multiple intrinsically‐different methodologies to achieve graphene‐synthesis and architecture‐engineering, complicating the entire procedure. Here, a novel approach to prepare GAs with engineered architectures based on the laser‐upcycling of protein biowaste, hemoglobin, is introduced. Laser scanning achieves graphene‐synthesis concurrently with architecture‐engineering through the localized graphitization of hemoglobin along the laser‐scan path, enabling the direct preparation of engineered GAs. The laser‐upcycled GAs are uniquely decorated with fibrous graphitic structures, which significantly improves the surface area. Such structural formation is attributable to the inherent iron content of hemoglobin which leads to the formation of iron‐based nanoparticles that catalyze the formation of nano‐structured graphene. By leveraging the high electrical conductivity and unique structural morphology, the laser‐upcycled GAs are applied as electrodes of symmetrical 3D supercapacitors. The fabricated supercapacitors exhibited a high specific capacitance (≈54.9 F g−1) and excellent cycle stability (≈94% retention), attributable to the laser‐engineered architecture facilitating ion diffusion even for thick electrodes. Not only does this study provide a novel approach to prepare GAs with engineered architectures but showcases the potential of laser‐upcycling in preparing advanced functional materials for future devices.

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Laser Upcycling of Hemoglobin Protein Biowaste into Engineered Graphene Aerogel Architectures for 3D Supercapacitors

Hayashi,

Rupp,

Liu

et al. 2024

Advanced Science

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Laser driven melt pool resonances through dynamically oscillating energy inputs

Rupp,

Schwarzkopf,

Döring

et al. 2024

Journal of Manufacturing Processes

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Direct writing of graphitic carbon/polydimethylsiloxane bimorph thermal microactuator via two-photon polymerization and laser-induced graphitization

YAMASHITA,

TANAKA,

CHEN

et al. 2024

Mechanical Engineering Journal

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Defect-initiated formation mechanism of 3D carbon tracks on flexible transparent substrates by laser irradiation

Cited by 3 publications

References 39 publications

Laser Upcycling of Hemoglobin Protein Biowaste into Engineered Graphene Aerogel Architectures for 3D Supercapacitors

Laser Upcycling of Hemoglobin Protein Biowaste into Engineered Graphene Aerogel Architectures for 3D Supercapacitors

Laser driven melt pool resonances through dynamically oscillating energy inputs

Direct writing of graphitic carbon/polydimethylsiloxane bimorph thermal microactuator via two-photon polymerization and laser-induced graphitization

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