Synthesis and structural, spectroscopic and nonlinear optical measurements of graphene oxide and its composites with metal and metal free porphyrins

Krishna, M. Bala Murali; Venkatramaiah, N.; Venkatesan, R.; Rao, D. Narayana

doi:10.1039/c1jm14822b

Cited by 160 publications

(54 citation statements)

References 33 publications

(29 reference statements)

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“…Free base and metallotetraphenylporphyrins can be covalently bound to GO via amides 20,21 and esters, 22,23 or deposited by molecular beam 24 to yield photonic materials. Cationic porphyrins electrostatically associate with GO and rGO, and GO can be appended with polyethylene glycols to make biocompatible materials.…”

Section: Introductionmentioning

confidence: 99%

Self-Organization of Zr(IV) Porphyrinoids on Graphene Oxide Surfaces by Axial Metal Coordination

et al. 2013

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The protruding oxophilic central metal ion of ZrIV porphyrinoids facilitates axial coordination to the oxygen bearing functional groups on graphene oxide (GO) surfaces to result in new supramolecular photonic materials with high dye loading especially on edges and large defects. The reaction proceeds at room temperature with GO dispersed in tetrahydrofuran and GO films on glass. Since the ZrIV serves as a conduit, the photophysical properties of the dye sensitized GO derive from both the axially bound chromophores and the GO substrate. Self-organization of metalloporphyrinoids on GO mediated by axial coordination of group (IV) metal ions allows for direct sensitization of graphene and graphenic materials without requiring covalent chemistries with poorly conducting linkers.

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Section: Introductionmentioning

confidence: 99%

Self-Organization of Zr(IV) Porphyrinoids on Graphene Oxide Surfaces by Axial Metal Coordination

et al. 2013

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“…1-3 A number of reports on the nonlinear optical response of graphene and its various derivatives are available in literature. [4][5][6][7][8][9][10][11] Pristine graphene is known to be a hydrophobic material with very low solubility in most solvents because of the high interlayer attraction energies and the absence of functional groups. 12 Solubility can be improved by attaching functional groups to the carbon backbone.…”

mentioning

confidence: 99%

White light Z-scan measurements of ultrafast optical nonlinearity in reduced graphene oxide nanosheets in the 400–700 nm region

Perumbilavil

Sankar

Rose

et al. 2015

Applied Physics Letters

291

111

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Wavelength dispersion of optical power limiting is an important factor to be considered while designing potential optical limiters for laser safety applications. We report the observation of broadband, ultrafast optical limiting in reduced graphene oxide (rGO), measured by a single open aperture Z-scan using a white light continuum (WLC) source. WLC Z-scan is fast when the nonlinearity is to be measured over broad wavelength ranges, and it obviates the need for an ultrafast tunable laser making it cost-economic compared to conventional Z-scan. The nonlinearity arises from nondegenerate two-photon absorption, owing mostly to the crystallinity and extended π conjugation of rGO.

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“…Because of its extensive π electron delocalization, polypyrrole displays excellent NLO properties. However, the poor solubility of polypyrrole and its derivatives occurred to be the most dominating obstacle, as we all known, porphyrins exhibit outstanding NLO activities due to their macrocyclic 4 and PPy/Tpp(OH) 4 nanohybrid at 532 nm with 4 ns pulse laser irradiation [42], the results were shown in Figure 9 and Figure 10 respectively.…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 69%

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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Synthesis and structural, spectroscopic and nonlinear optical measurements of graphene oxide and its composites with metal and metal free porphyrins

Cited by 160 publications

References 33 publications

Self-Organization of Zr(IV) Porphyrinoids on Graphene Oxide Surfaces by Axial Metal Coordination

Self-Organization of Zr(IV) Porphyrinoids on Graphene Oxide Surfaces by Axial Metal Coordination

White light Z-scan measurements of ultrafast optical nonlinearity in reduced graphene oxide nanosheets in the 400–700 nm region

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

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