Abstract

We studied the thermal effect in the photoreduction process for the sub-micrometer thin graphene oxide (GO) films using femtosecond laser direct writing (FsLDW). For efficient photoreduction of GO films, various laser parameters, especially the repetition rate, were examined to identify the photothermal effect with different pulse-to-pulse spacing using a femtosecond laser having a 515-nm central wavelength. The linewidths of photoreduction were measured and the photoreduction degrees were characterized by the optical transmittance of the films. The results show that the heat accumulation due to the time interval between pulses dominantly affects the reduction degree and the linewidth.

© 2017 Optical Society of America

PDF Article
More Like This
Photoreduction of graphene oxides using a femtosecond laser: photothermal and photochemical contributions

Chin Huat Joel Lim, Low Munji, Hyub Lee, Vadakke Matham Murukeshan, and Young-Jin Kim
s1604 Conference on Lasers and Electro-Optics/Pacific Rim (CLEOPR) 2017

Femtosecond Laser Direct Writing of Graphene Oxide Film on Polydimethylsiloxane (PDMS) for Flexible and Stretchable Electronics

Truong-Son Dinh Le, Jianing An, and Young-Jin Kim
s1090 Conference on Lasers and Electro-Optics/Pacific Rim (CLEOPR) 2017

Graphene-based ultrathin optical components printed by femtosecond laser direct writing method

Hyub Lee, Mun Ji Low, Chin Huat Joel Lim, Vadakke Matham Murukeshan, and Young-Jin Kim
s1596 Conference on Lasers and Electro-Optics/Pacific Rim (CLEOPR) 2017

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription