Ultrafast nonlinear optical response of carbon nanotubes functionalized with water soluble porphyrin

Gupta, Jyotsana; Vijayan, C.; Maurya, Sandeep Kumar; Goswami, Debabrata

doi:10.1016/j.optcom.2011.12.070

Cited by 18 publications

(5 citation statements)

References 45 publications

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“…For the GO sample, the absorption bands located at 1724 and 1616 cm -1 can be assigned to the stretching vibration of the C=O and C=C bonds, respectively; while the bands at 1396 and 1043 cm -1 are ascribed to the stretching vibration of the aromatic C-OH and C-O bonds, respectively [38]. The FTIR spectrum of MnTPPCl shows bands centered at 1596 and 1204 cm -1 , corresponding to the bending vibrations of the C=N and the C-N bonds, respectively [39][40][41]. Besides, the band at 1009 cm -1 attributed to the Mn-N vibration can also be observed [42].…”

Section: Structure and Morphologymentioning

confidence: 99%

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

Wang

et al. 2017

J. Porphyrins Phthalocyanines

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ABSTRACT:In this paper, graphene oxide (GO) sheets covalently functionalized with (5,10,15,20-tetraphenyl) porphinato manganese(III) (MnTPP) has been successfully synthesized and tested as a photocatalyst for hydrogen evolution from water under UV-vis light irradiation. The obtained sample was systematically characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis, Fourier transform infrared (FTIR), and Raman spectroscopy. The results show that the MnTPP moiety has been successfully grafted on the graphene oxide surface to form MnTPP modified GO (GO-MnTPP). The fluorescence quenching and photocurrent enhancement of GOMnTPP confirm that the rapid electrons transfer from photoexcited the MnTPP moiety to the GO sheets. The platinized GO-MnTPP exhibits enhanced photocatalytic activity for water reduction to produce hydrogen. Moreover, with the assistance of polyvinyl pyrrolidone (PVP), the photocatalytic activity is further improved because of aggregation prevention of the GO-MnTPP nanocomposite. This study provides a facile method to build porphyrin-graphene-based photocatalysts for solar energy conversion.

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Section: Structure and Morphologymentioning

confidence: 99%

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

Wang

et al. 2017

J. Porphyrins Phthalocyanines

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“…It is well-known that the depth/altitude of the valley/peak in the Z-scan curves was consisted to the extent of NLO activity [45], from Figure 9, it is no doubt that the depth of PPy/Tpp(OH) 4 nanohybrid was longer than the depth of Tpp(OH) 4 and the altitude of PPy, which proves that the nonlinearity of PPy was tremendously improved by the intervenation of Tpp(OH) 4 . Figure 10 exhibits the NLO refractive data for PPy, Tpp(OH) 4 and PPy/ Tpp(OH) 4 nanohybrid at 532 nm with 4 ns pulse laser irradiation under close-aperture configuration [46]. All materials displays a pre-focal transmittance maximun (peak) followed by a post-focal transmittance minimum (valley)…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 99%

A Polypyrrole Hybrid Material Self-Assembled with Porphyrin: Facial Synthesis and Enhanced Optical Limiting Properties

Wang¹,

Wang²,

Yang³

et al. 2017

MSCE

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Polypyrrole/porphyrin nanohybrid (PPy/Tpp(OH) 4 nanohybrid) have been synthesized through a self-assembled approach, and the as-synthesized PPy/Tpp(OH) 4 nanohybrid are characterized by Fourier-transform infrared, X-ray photoelectron spectroscopy, Raman spectroscopy, thermogravimetric analysis, Ultraviolet-visible absorption, scanning electron microscopy, and steady state fluorescence spectroscopic techniques. Formation of the PPy/Tpp(OH) 4 nanohybrid dramatically improved the solubility and processability of the PPy-based nano-material. The nonlinear optical (NLO) properties of PPy/Tpp(OH) 4 nanohybrid were measured by Z-scan at 532 nm with nanosecond laser pulse, the results indicating that PPy/Tpp(OH) 4 nanohybrid exhibits a enhanced NLO property in comparison with the benchmark PPy and Tpp(OH) 4 due to a combination of mechanisms.

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“…The obtained composites had larger TPA coefficients than MWNT. 17 The modification with phthalocyanines induced an increase on the TPA. Except for the intramolecular electron interaction, some external factors, such as photon subsystem should also be considered to explain the optical limiting behaviors of these composites in our work.…”

Section: Displays the Transmissionmentioning

confidence: 99%

Study on the preparation of multi-walled carbon nanotube/phthalocyanine composites and their optical limiting effects

Zhang

Liu

et al. 2013

Journal of Composite Materials

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In this article, multi-walled carbon nanotubes were noncovalently functionalized with different metal phthalocyanines by π–π stacking method. Multi-walled carbon nanotubes were dispersed by sonication into the phthalocyanines solution in chloroform or N, N-dimethyl formamide before refined purification by centrifugation. It could be observed that the metal phthalocyanine molecules adhered to the surface of multi-walled carbon nanotubes in the transmission electron microscopy images. These composites were characterized by thermo gravimetric analysis and UV/Vis absorption spectrum. The optical limiting responses of these composites in N, N-dimethyl formamide solution were studied by Q-switched Nd:YAG laser instrument with nanosecond pulse of 1064 nm and repetition rate of 10 Hz. It was noted that the optical limiting ability of these composites solution was stronger than that of multi-walled carbon nanotubes or phthalocyanine alone. In addition, carbon nanotube was commonly purified in concentrated nitric acid, which usually introduced carboxylic groups on the carbon nanotubes. Herein, the effect of introduced carboxylic groups in the nitric acid treatment on the π–π stacking was also studied based on thermogravimetric analysis of composite multi-walled carbon nanotube/copper phthlaocyanine.

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Ultrafast nonlinear optical response of carbon nanotubes functionalized with water soluble porphyrin

Cited by 18 publications

References 45 publications

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

A Polypyrrole Hybrid Material Self-Assembled with Porphyrin: Facial Synthesis and Enhanced Optical Limiting Properties

Study on the preparation of multi-walled carbon nanotube/phthalocyanine composites and their optical limiting effects

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