TY - JOUR
T1 - Facile synthesis and enhanced nonlinear optical properties of porphyrin-functionalized multi-walled carbon nanotubes
AU - Wang, Aijian
AU - Fang, Yu
AU - Long, Lingliang
AU - Song, Yinglin
AU - Yu, Wang
AU - Zhao, Wei
AU - Cifuentes, Marie P.
AU - Humphrey, Mark G.
AU - Zhang, Chi
PY - 2013/10/11
Y1 - 2013/10/11
N2 - Two multi-walled carbon nanotube (MWCNT)-based nanohy-brids, MWCNT-ZnTPP and MWCNT-TPP (TPP=5-[4-{2-(4-formylphenoxy)-ethyloxy}phenyl]-10, 15, 20-triphenylpor-phyrin, ZnTPP=5-[4-{(4-formylphen-yl)ethynyl}phenyl]-10, 15, 20-triphenyl-porphinatozinc(II)), were prepared directly from pristine MWCNTs through 1, 3-dipolar cycloaddition reactions. Co-valent attachment of the porphyrins to the surfaces of the MWCNTs was confirmed by Fourier transform infrared spectroscopy, ultraviolet/visible absorption, fluorescence, Raman, and X-ray photoelectron spectroscopy, elemental analysis, transmission electron microscopy, and thermogravimetric analysis. Attachment of the porphyrin moieties to the surface of the MWCNTs significantly improves the solubility and ease of processing of these MWCNT-por-phyrin composite materials. Z-scan studies reveal that these MWCNT-por-phyrin nanohybrids exhibit enhanced nonlinear optical properties under both nanosecond and picosecond laser pulses at λ=532 nm in comparison with free MWCNTs and the free porphyrin chromophores, whereas superior optical limiting performance was displayed by MWCNT-porphyrin composite materials rather than MWCNTs/ZnTPP and MWCNTs/TPP blends, which is consistent with a remarkable accumulation effect as a result of the covalent linkage between the porphyrin and the MWCNTs.
AB - Two multi-walled carbon nanotube (MWCNT)-based nanohy-brids, MWCNT-ZnTPP and MWCNT-TPP (TPP=5-[4-{2-(4-formylphenoxy)-ethyloxy}phenyl]-10, 15, 20-triphenylpor-phyrin, ZnTPP=5-[4-{(4-formylphen-yl)ethynyl}phenyl]-10, 15, 20-triphenyl-porphinatozinc(II)), were prepared directly from pristine MWCNTs through 1, 3-dipolar cycloaddition reactions. Co-valent attachment of the porphyrins to the surfaces of the MWCNTs was confirmed by Fourier transform infrared spectroscopy, ultraviolet/visible absorption, fluorescence, Raman, and X-ray photoelectron spectroscopy, elemental analysis, transmission electron microscopy, and thermogravimetric analysis. Attachment of the porphyrin moieties to the surface of the MWCNTs significantly improves the solubility and ease of processing of these MWCNT-por-phyrin composite materials. Z-scan studies reveal that these MWCNT-por-phyrin nanohybrids exhibit enhanced nonlinear optical properties under both nanosecond and picosecond laser pulses at λ=532 nm in comparison with free MWCNTs and the free porphyrin chromophores, whereas superior optical limiting performance was displayed by MWCNT-porphyrin composite materials rather than MWCNTs/ZnTPP and MWCNTs/TPP blends, which is consistent with a remarkable accumulation effect as a result of the covalent linkage between the porphyrin and the MWCNTs.
KW - Cycloaddition
KW - Nano-tubes
KW - Nonlinear optics
KW - Porphyri-noids
UR - http://www.scopus.com/inward/record.url?scp=84885584714&partnerID=8YFLogxK
U2 - 10.1002/chem.201302477
DO - 10.1002/chem.201302477
M3 - Article
SN - 0947-6539
VL - 19
SP - 14159
EP - 14170
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 42
ER -