<i>In situ</i>synthesis and optical limiting response of poly(<i>N</i>-vinylcarbazole) functionalized single-walled carbon nanotubes

Li, Peipei; Niu, Lijuan; Chen, Yu; Wang, Jun; Liu, Ying; Zhang, Jinjuan; Blau, Werner J.

doi:10.1088/0957-4484/22/1/015204

Cited by 14 publications

(5 citation statements)

References 37 publications

(46 reference statements)

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“…[72] The porphyrin moieties assist homogeneous dispersion of the MWCNT nanohybrids in DMF, which further improves the optical limiting behavior of the MWCNT dispersions. [73] From Figure 4, the observed strong fluorescence quenching for the MWCNT-TPP and MWCNT-ZnTPP hybrids implies strong interaction and photoinduced energy and/or electron transfer between the photoexcited singlet porphyrin and the MWCNTs. This photoinduced energy and/or electron transfer may produce charge-separated excited states and results in an increased optical limiting performance, [47,74] which has been verified by the Z scan of the control samples.…”

Section: Resultsmentioning

confidence: 94%

“…In addition, it is widely accepted that porphyrins in solution exhibit optical limiting around λ =532 nm due to a RSA mechanism that originates from excited‐state absorption (ESA) 72. The porphyrin moieties assist homogeneous dispersion of the MWCNT nanohybrids in DMF, which further improves the optical limiting behavior of the MWCNT dispersions 73. From Figure 4, the observed strong fluorescence quenching for the MWCNT–TPP and MWCNT–ZnTPP hybrids implies strong interaction and photoinduced energy and/or electron transfer between the photoexcited singlet porphyrin and the MWCNTs.…”

Section: Resultsmentioning

confidence: 99%

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Facile Synthesis and Enhanced Nonlinear Optical Properties of Porphyrin‐Functionalized Multi‐Walled Carbon Nanotubes

Wang

Fang

Long

et al. 2013

Chemistry A European J

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Two multi-walled carbon nanotube (MWCNT)-based nanohybrids, MWCNT-ZnTPP and MWCNT-TPP (TPP=5-[4-{2-(4-formylphenoxy)- ethyloxy}phenyl]-10,15,20-triphenylporphyrin, ZnTPP=5-[4-{(4-formylphenyl)ethynyl}phenyl]-10,15,20-triphenylporphinatozinc(II)), were prepared directly from pristine MWCNTs through 1,3-dipolar cycloaddition reactions. Covalent 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-porphyrin composite materials. Z-scan studies reveal that these MWCNT-porphyrin 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.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Facile Synthesis and Enhanced Nonlinear Optical Properties of Porphyrin‐Functionalized Multi‐Walled Carbon Nanotubes

Wang

Fang

Long

et al. 2013

Chemistry A European J

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“…Poly( N -vinylcarbazole)-grafted MWNTs hybrid materials ( 531 , Chart ) , were also synthesized with different percentages of polymer content in the hybrid material (determining the n value). Hybrid 531a is obtained with 79% in weight of polymer, 531b with 90% in weight, and 531c with 96% in weight.…”

Section: Carbon-based Materialsmentioning

confidence: 99%

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

2016

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The control of luminous radiation has extremely important implications for modern and future technologies as well as in medicine. In this Review, we detail chemical structures and their relevant photophysical features for various groups of materials, including organic dyes such as metalloporphyrins and metallophthalocyanines (and derivatives), other common organic materials, mixed metal complexes and clusters, fullerenes, dendrimeric nanocomposites, polymeric materials (organic and/or inorganic), inorganic semiconductors, and other nanoscopic materials, utilized or potentially useful for the realization of devices able to filter in a smart way an external radiation. The concept of smart is referred to the characteristic of those materials that are capable to filter the radiation in a dynamic way without the need of an ancillary system for the activation of the required transmission change. In particular, this Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting. All known mechanisms of optical limiting have been analyzed and discussed for the different types of materials.

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“…The strategy has been applied to versatile nanohybrids, including the preparation of a nanohybrid of covalently functionalized MWNTs with poly(N-vinyl carbazole) (PVK) via RAFT polymerization, 68 the facile preparation of PVK and MWNTs solution and conjugated polymer network nanocomposite lm, 69 and the in situ synthesis of PVK-functionalized SWNTs with enhanced optical limiting properties. 70 More recently, this strategy has been extended to graphene-based hybrid systems. [71][72][73][74][75] 3 Hybrid of functional PPAs/CNTs as template…”

Section: Recognition Of the Role Of Donor-acceptor Interactions Betwementioning

confidence: 99%

Functional polyacetylenes: hybrids with carbon nanotubes

2013

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Functional polyacetylenes (PAs) have attracted great interest and a series of tutorial reviews dealing with the recent progress in the related fields can be found in the literature. The investigation of the hybrids of functional PAs and inorganic nanostructures is a newly asserted and developing area. In this review, we summarise the related works on the hybrids of functional PAs and carbon nanotubes (CNTs) reported in the last decade. The effects of the structural parameters such as the polymer mainchain, functional pendants and the linker between them on the solvating power towards CNTs are explored step-by-step. Concerning the mechanisms of dispersing CNTs into solvents, a novel factor, or donor-acceptor interaction, has been singled out, thus providing a novel concept to design functional polymers for the fabrication of CNT-based processable hybrids. The strong solvating power of properly designed functional PAs facilitates the non-harmful surface functionalization of CNTs and permits using the hybrids of PAs/CNTs as templates to derive multi-component nanocomposites. Different nanostructures including Ag nanoparticles, ZnO nanocrystallites, CdS nanorods and g-Fe 3 O 4 nanoparticles are successfully incorporated into the functional PAs/CNTs hybrid systems, which show efficient charge transfer, charge carrier transport, enhanced solvatochromism, and superparamagnetic properties. Rationally functionalized PAs demonstrate good biocompatibility and their hybrids with CNTs can be used as active additives to reinforce the bending strength and modulus of chitosan rods. Finally, a brief outlook of the promising directions in this promising research area is contributed. Jing Zhi Sun received his B.S. degree and PhD degree from the Department of Chemistry at Jilin University in 1986 and 1999, respectively. He conducted his postdoctoral research at Zhejiang University (ZJU) and jointed ZJU in 2001 as an assistant professor, then became a full professor in 2006. His current research interests include conjugated polymers, polymer hybrids and bioelectronics based on aggregation-induced emission luminogens.

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In situsynthesis and optical limiting response of poly(N-vinylcarbazole) functionalized single-walled carbon nanotubes

Cited by 14 publications

References 37 publications

Facile Synthesis and Enhanced Nonlinear Optical Properties of Porphyrin‐Functionalized Multi‐Walled Carbon Nanotubes

Facile Synthesis and Enhanced Nonlinear Optical Properties of Porphyrin‐Functionalized Multi‐Walled Carbon Nanotubes

Nonlinear Optical Materials for the Smart Filtering of Optical Radiation

Functional polyacetylenes: hybrids with carbon nanotubes

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