ABSTRACT
Since the discovery of graphene in 2004, extensive studies regarding the synthesis of this promising material have been reported for widespread applications (Zhu et al. 2010). The production of graphenebased materials with various dimensions, quality and patterns is crucial for the market of graphene (Novoselov et al. 2012, Xiong et al. 2014). Significant advances in this field have been achieved, including growth by chemical vapor deposition, thermal or liquid phase exfoliation of graphite, and reduction of Graphene Oxide (GO) (Compton et al. 2010). GO is an electrical insulator which contains numerous Oxygen-Containing Groups (OCGs). Altering the OCGs of GO through chemical, thermal or photo reduction could restore its electrical properties and make it close to graphene (Chen et al. 2012). Among these reduction methods, photo-reduction, especially laser reduction, displays particular superiority because of its flexible, low-cost, eco-friendly and high-efficiency properties (Strong et al. 2012).
