文献类型：期刊文献

英文题名：Graphene oxide covalently functionalized with zinc phthalocyanine for broadband optical limiting

作者：Zhu, Jinhui[1];Li, Yongxi[1];Chen, Yu[1];Wang, Jun[2];Zhang, Bin[1];Zhang, Jinjuan[1];Blau, Werner J.[3,4]

机构：[1]E China Univ Sci & Technol, Dept Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China;[3]Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland;[4]Trinity Coll Dublin, CRANN, Dublin 2, Ireland

年份：2011

卷号：49

期号：6

起止页码：1900

外文期刊名：CARBON

收录：;EI(收录号：20110913702880);WOS:【SCI-EXPANDED(收录号:WOS:000288689900012)】；

基金：The authors are grateful for the financial support of the National Natural Science Foundation of China (20676034 and 20876046), the Ministry of Education of China (309013), the Fundamental Research Funds for the Central Universities, the Shanghai Municipal Educational Commission for the Shuguang fellowship (08GG10) and the Shanghai Eastern Scholarship. This work is also supported in part by the starting grant of the 100-Talent Program of SIOM, Chinese Academy of Sciences (1108221-JR0).

语种：英文

外文关键词：Graphene - Zinc compounds - Light absorption

摘要：A soluble graphene oxide (GO) covalently functionalized with zinc phthalocyanine (PcZn), GO-PcZn, was synthesized by an amidation reaction. The formation of an amido bond between PcZn and GO has been confirmed by X-ray photoelectron and Fourier transform infrared spectroscopy. At the same level of linear extinction coefficient, GO-PcZn exhibited much larger nonlinear optical extinction coefficients and broadband optical limiting performance than GO at both 532 and 1064 nm, indicating a remarkable accumulation effect as a result of the covalent link between GO and PcZn. (C) 2011 Elsevier Ltd. All rights reserved.