Chinese Optics Letters, 2015, 13 (2): 021601, Published Online: Sep. 25, 2018  

Few-layer graphene film fabricated by femtosecond pulse laser deposition without catalytic layers Download: 1102次

Author Affiliations
Strong-field and Ultrafast Photonics Lab, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
Abstract
The films of few-layer graphene are formed through laser exfoliation of a highly ordered pyrolytic graphite (HOPG), without a catalytic layer for the growth process. The femtosecond (fs) laser exfoliation process is investigated at different laser fluences and substrate temperature. For fs laser exfoliation of HOPG, the few-layer graphene is obtained at 473 K under an optimal laser fluence. The formation of few-layer graphene is explained by removal of intact graphite sheets occurred by an optimal laser fluence ablation. The new insights may facilitate the controllable synthesis of large area few-layer graphene.

Xiangming Dong, Shibing Liu, Haiying Song, Peng Gu, Xiaoli Li. Few-layer graphene film fabricated by femtosecond pulse laser deposition without catalytic layers[J]. Chinese Optics Letters, 2015, 13(2): 021601.

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