Open AccessRapid growth of large area graphene on glass from olive oil by laser irradiation
Author(s) -
Yihe Huang,
M. Sepioni,
David Whitehead,
Zhu Liu,
Wei Guo,
Xiangli Zhong,
Heng Gu,
Li Lin
Publication year - 2020
Publication title -
nanotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.926
H-Index - 203
eISSN - 1361-6528
pISSN - 0957-4484
DOI - 10.1088/1361-6528/ab7ef6
Subject(s) - materials science , graphene , sheet resistance , chemical vapor deposition , irradiation , transmittance , laser , substrate (aquarium) , optoelectronics , femtosecond , electrical resistivity and conductivity , composite material , optics , layer (electronics) , nanotechnology , oceanography , physics , electrical engineering , engineering , geology , nuclear physics
Although homogeneous, high quality graphene can be fabricated on a Cu or Ni sheet using the traditional chemical vapour deposition method at high temperatures (over 1000 °C) under specific atmospheric conditions, their transfer to another substrate is difficult. In this paper a novel method of rapidly (i.e. 3–6 s of laser irradiation) producing a large area (>3 cm 2 ) graphene film from olive oil on a glass surface (pre-coated with a 5–28 nm thick Ni film) with defocused, large area continuous laser irradiation is described. The turbostratic graphene film (6 layers) grown in such a way has shown high electrical conductivity (sheet resistance of around 20 Ω sq −1 ) and an optical transmittance of 40–50%. With femtosecond laser patterning, 70% optical transparency was demonstrated. Continuous large area graphene was formed at relatively lower temperatures (<250 °C) and without the need for specific atmospheric conditions. The basic process characteristics and mechanisms involved are discussed.