An abnormal non-incubation effect in femtosecond laser processing of freestanding reduced graphene oxide paper

Ruyu Yan, Lan Jiang, Xin Li, Jie Hu, Xuesong Shi, Peng Ran, Xiaojie Li, Yongfeng Lu

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Femtosecond laser ablation of freestanding reduced graphene oxide (rGO) paper and its mechanisms were investigated. An abnormal phenomenon was discovered: the ablated area remained unchanged for the rGO paper with an increasing number of pulses, which was found to be a general feature for a large range of laser fluences. We also studied femtosecond laser ablation of graphene oxide paper and highly oriented pyrolytic graphite film for comparison. Experimental results indicated that the abnormal phenomenon was unique to the rGO paper. As revealed by a combination of SEM, TEM, XRD and Raman techniques, femtosecond laser nonthermal ablation through rolling up of rGO nanoflakes, induced by the distinctive multi-level layer-by-layer structures and the ultrafast energy relaxation of the rGO paper, were considered to be responsible for the non-incubation effect.

Original languageEnglish (US)
Article number185302
JournalJournal of Physics D: Applied Physics
Volume50
Issue number18
DOIs
StatePublished - Apr 13 2017

Keywords

  • femtosecond laser ablation
  • non-incubation effect
  • reduced graphene oxide paper

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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