title: Enhanced nonlinear optical properties of graphene-oligothiophene hybrid material.
abstract: The nonlinear optical and optical limiting properties of an oligothiophene (6THIOP) covalently functionalized graphene hybrid material (Graphene-6THIOP) were investigated by using Z-scan technique with a 5 ns Q-switched pulsed laser at 532 nm. Results show that the hybrid material of Graphene-6THIOP exhibits enhanced nonlinear optical and optical limiting properties in comparison to individual 6THIOP, graphene moiety and C60. The enhanced nonlinear optical properties of Graphene-6THIOP should be attributed to the combination of the observed nonlinear scattering with the possible photoinduced electron or energy transfer mechanism between 6THIOP moiety and graphene.
authors.affiliation: The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School, Nankai University, Tianjin 300457, China.
authors.forename: Xiao-Liang
authors.initials: XL
authors.lastname: Zhang
authors.forename: Xin
authors.initials: X
authors.lastname: Zhao
authors.forename: Zhi-Bo
authors.initials: ZB
authors.lastname: Liu
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Liu
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Chen
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Tian
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008027:Light; D008420:Manufactured Materials / Q000032:analysis*; D008422:Materials Testing; D017711:Nonlinear Dynamics; D012031:Refractometry; D012542:Scattering, Radiation; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D013876:Thiophenes; D006108:Graphite