Increased optical nonlinearities of graphene nanohybrids covalently functionalized by axially-coordinated porphyrins

被引:118
作者
Wang, Aijian [1 ]
Long, Lingliang [2 ]
Zhao, Wei [1 ]
Song, Yinglin [3 ]
Humphrey, Mark G. [4 ]
Cifuentes, Marie P. [4 ]
Wu, Xingzhi [3 ]
Fu, Yongsheng [1 ]
Zhang, Dongdong [2 ]
Li, Xiufen [2 ]
Zhang, Chi [1 ,2 ,4 ]
机构
[1] Nanjing Univ Sci & Technol, Mol Mat Res Ctr, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China
[2] Jiangsu Univ, China Australia Joint Res Ctr Funct Mol Mat, Sci Res Acad, Zhenjiang 212013, Peoples R China
[3] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[4] Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia
基金
中国国家自然科学基金;
关键词
WALLED CARBON NANOTUBES; REVERSE SATURABLE ABSORPTION; HETEROTHIOMETALLIC CLUSTERS; PHOSPHORUS(V) PORPHYRINS; PHTHALOCYANINE MOIETIES; LIMITING PROPERTIES; ELECTRON-TRANSFER; HYBRID MATERIAL; GRAPHITE OXIDE; EXCITED-STATE;
D O I
10.1016/j.carbon.2012.11.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two graphene oxide (GO)-based nanohybrid materials possessing covalent linkages to axially-coordinated tetraphenylporphyrin (TPP), GO-TPP, were prepared and were characterized by Fourier transform infrared (FT-IR), Ultraviolet-visible (UV-Vis) absorption, steady state fluorescence, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), thermogravimetric analysis (TGA), elemental analysis and Raman spectroscopic techniques. The nonlinear optical properties and optical limiting performance of GO, GO-TPP nanohybrids and the free porphyrins dihydroxotin(IV) tetraphenylporphyrin (SnTPP) and the phosphorus-cored porphyrin (PTPP) were investigated using nanosecond and picosecond Z-scan measurements at 532 nm. At the identical mass concentration of 0.2 mg mL(-1), GO-TPP nanohybrids exhibited enhanced nonlinear optical properties and optical limiting performance, ascribed to a combination of nonlinear scattering and/or two-photon absorption with reverse saturable absorption, and the photo-induced electron or energy transfer from the electron-donor porphyrin moiety to the acceptor graphene. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:327 / 338
页数:12
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