TY - JOUR
T1 - Increased optical nonlinearities of graphene nanohybrids covalently functionalized by axially-coordinated porphyrins
AU - Wang, Aijian
AU - Long, Lingliang
AU - Zhao, Wei
AU - Song, Yinglin
AU - Humphrey, Mark G.
AU - Cifuentes, Marie P.
AU - Wu, Xingzhi
AU - Fu, Yongsheng
AU - Zhang, Dongdong
AU - Li, Xiufen
AU - Zhang, Chi
PY - 2013/3
Y1 - 2013/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84871268808&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2012.11.019
DO - 10.1016/j.carbon.2012.11.019
M3 - Article
SN - 0008-6223
VL - 53
SP - 327
EP - 338
JO - Carbon
JF - Carbon
ER -