Lap joining of graphene flakes by current-assisted CO2 laser irradiation

Xiaohui Ye, Ting Huang, Zhe Lin, Minlin Zhong, Lin Li, Yinzhou Yan, Hongwei Zhu

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


A novel approach utilizing current-assisted CO2 laser irradiation was used to join two monolayer graphene flakes. Two partially overlapped graphene flakes were irradiated with a continuous wave CO2 laser, together with a current at a constant voltage of 30 V. Raman spectrometer and transmission electron microscope (TEM) analyses showed the joining signal at a laser power density of 8 W/cm2 with an irradiation time of 30 s and a current of 25 mA (30 V) for 5 min. The joining mechanism of graphene flakes was also investigated. We provide a novel route to realize large-area graphene joint for potential applications.

Original languageEnglish
Pages (from-to)329-335
Number of pages7
Publication statusPublished - 2013 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)


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