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

被引：119

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

来源：

CARBON | 2013年 / 53卷

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

页码：327 / 338

页数：12

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