Impact of carbon nanotube geometrical volume on nonlinear absorption and scattering properties

Nair, Vijayakumar Sadasivan; Pusala, Aditya; Hatamimoslehabadi, Maryam; Yelleswarapu, Chandra S.

doi:10.1016/j.optmat.2017.08.020

Cited by 7 publications

(3 citation statements)

References 52 publications

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“…24 Additionally, CNTs show π-plasmon absorbance bands in UV-Vis spectrum in the range of 155 to 310 nm (4.0-8.0 eV), which they are associated with collective excitations of π electrons. 25 The π-plasmon bands were key features in some studies and applications of CNTs such as nonlinear optical properties of CNTs, 26 determination of nanotube diameter, 27 and measurement of sensitivity for optical sensors. 28 In this report, π-plasmon renewable recycled thin film was fabricated from carboxylic functionalized multiwall CNTs coupled with polycaprolactone grafted pectin (PGP).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, CNTs show π‐plasmon absorbance bands in UV‐Vis spectrum in the range of 155 to 310 nm (4.0‐8.0 eV), which they are associated with collective excitations of π electrons . The π‐plasmon bands were key features in some studies and applications of CNTs such as nonlinear optical properties of CNTs, determination of nanotube diameter, and measurement of sensitivity for optical sensors …”

Section: Introductionmentioning

confidence: 99%

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π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Fares

2018

Polymers for Advanced Techs

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π‐Plasmon absorbance films of carboxylic functionalized multiwall carbon nanotubes (CNTs) coupled with renewable and recycled polycaprolactone grafted pectin (PGP) platforms as successful alternative for ordinary nondegradable platforms were investigated. Characterization of the synthesized carboxylic functionalized CNTs was performed using 1H NMR and attenuated total reflectance Fourier transform infrared for structural identification, thermogravimetric analysis and derivative thermogravimetric analysis for thermal stability, and X‐ray powder diffraction for crystal structure, whereas the characterization of prepared PGP was done by means of attenuated total reflectance Fourier transform infrared for chemical structure, differential scanning calorimetry for melting endotherms of polycaprolactone and high crystalline structure of PGP, and thermogravimetric analysis and derivative thermogravimetric analysis for thermal stability of PGP. Fabrication of water‐dispersed carboxylic functionalized CNTs coupled with PGP films was performed by casting technique in the presence of Ca2+ as cross‐linker. The thin films were tested for π‐plasmon absorbance using UV‐Vis spectrometry. Different fractions of carboxylic functionalized CNTs and PGP films demonstrated π‐plasmon absorbance broad peaks at λmax = 232 nm, which corresponded to 5.36 eV. The fabrication of novel films from renewable recycled PGP platform and advanced carboxylic functionalized CNTs properties will be the key features for many of next forthcoming technologies. The PGP considered as environment‐friendly and easily degradable platforms will be a successful alternative for conventional nondegradable electronic platforms, and water‐dispersed carboxylic functionalized CNTs with advanced properties will be finding accelerating executive applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Fares

2018

Polymers for Advanced Techs

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“…Plasmonic nanomaterials exhibit strong light-matter interaction that can be controlled by the size, shape, and material composition of nanoparticles (NPs) [1,2]. In these systems incident light induces localized surface plasmon resonances (LSPR) on NPs, leading to fascinating and unique properties that have found applications in fields of medicine, biology, chemistry, photonics, and biomedical imaging and sensing [3][4][5][6][7][8][9][10][11][12]. In recent years, the rapid development of nanoscience and nanotechnology has enabled the synthesis of NPs from a wide variety of materials that include the fabrication of multi-nanoparticle structures and arrays [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Plasmon enhancement of third-order nonlinear optical absorption of gold nanoparticles dispersed in planar oriented nematic liquid crystals

Wang

Sun

et al. 2023

Nanotechnology

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We report structural and nonlinear optical properties of 20 nm gold (Au) nanoparticles (NPs) that are dispersed in planar degenerate (non-oriented) and planar oriented nematic liquid crystals (4′-Pentyl-4-biphenylcarbonitrile-5CB). Taking advantage of elastic forces in the planar oriented nematic liquid crystal, we aligned AuNPs parallel to the 5CB director axis. In the case of planar degenerate, 5CB is not aligned and has no preferred orientation, forcing the AuNPs to disperse randomly. Results show that the linear optical absorption coefficient for the planar oriented 5CB/AuNPs mixture is larger than the corresponding planar degenerate sample. The nonlinear absorption coefficients are greatly enhanced in planar oriented samples at relatively high concentrations which can be attributed to plasmon coupling between the aligned AuNPs. This study demonstrates the utility of liquid crystals for developing the assembly of NPs with enhanced optical properties which may offer important insight and technological advancement for novel applications, including photonic nanomaterials and optoelectronic devices.

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Laser fabrication of composite layers from biopolymers with branched 3D networks of single-walled carbon nanotubes for cardiovascular implants

Gerasimenko

Kurilova

Savelyev

et al. 2021

Composite Structures

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Impact of carbon nanotube geometrical volume on nonlinear absorption and scattering properties

Cited by 7 publications

References 52 publications

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Plasmon enhancement of third-order nonlinear optical absorption of gold nanoparticles dispersed in planar oriented nematic liquid crystals

Laser fabrication of composite layers from biopolymers with branched 3D networks of single-walled carbon nanotubes for cardiovascular implants

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