Electron phonon interaction in K-doped (9,9) carbon nanotube

Upadhyay, Prashant; Nagar, A. K.

doi:10.1063/1.4810119

Cited by 2 publications

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“…It is also deleterious to aquatic species and eco-systems. [25][26][27] As aluminium lacks spectroscopic characteristics [28][29][30] and is a hard acid as per HSAB principle, fluorescence sensors containing harder O and N donor atoms along with suitable fluorophore as a part of the ligand framework, were effec-tive. [31][32][33][34] Easy preparation, high yield and high selectivity properties of imine-based chemosensors, have made them most popular fluorescence probes in detection of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Nanomolar Detection of Al(III) Ion by Hydrazones Carrying Benzothiazole and Substituted Phenol Groups

Behera

Manivannan

2017

ChemistrySelect

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Two new hydrazones L1H (2‐(2‐(2,3‐dihydroxy)benzylidenehydrazinyl)benzothiazole) and L2H (2‐((2‐(2‐hydroxy)(4‐N,N‐diethylamino))benzylidenehydrazinyl)benzothiazole) were synthesized using 2‐hydrazinylbenzothiazole and 2,3‐dihydroxybenzaldehyde or 4‐(diethylamino)‐2‐hydroxybenzaldehyde. The probe L1H showed an absorption peak at 340 nm while L2H at 375 nm, in MeOH/HEPES buffer (pH=7.3; 8:2, v/v). Upon gradual addition of AlCl3 to L1H, intensity of the peak at 340 nm decreased and a new band appeared with a peak at 400 nm. Similarly upon adding AlCl3 to L2H, new peaks at 405 and 420 nm grew in intensity with concomitant decrease in absorbance peak at 375 nm, having quasi isosbestic point at 395 nm. Both these probes are weakly emissive in nature. Incremental addition of AlCl3 to the MeOH/HEPES buffer solution of L1H gave turn‐on response having emission maximum at 480 nm and L2H at 450 nm with a shoulder at 468 nm. Turn‐On responses of L1H and L2H towards Al3+ ion were result of inhibition of PET process which in turn allowed chelation induced enhanced fluorescence (CHEF) effect becoming operational. Job's plot obtained from the titration experiments yielded 1:1 stoichiometry for Al3+ ion, hence the formulae [Al(L1)Cl2(H2O)] and [Al(L2)Cl2(H2O)] were assigned. Addition of Na2EDTA to [Al(L1)Cl2(H2O)] and [Al(L2)Cl2(H2O)] reproduced UV‐visible spectrum that is characteristic of free L1H/L2H.

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Section: Introductionmentioning

confidence: 99%

Nanomolar Detection of Al(III) Ion by Hydrazones Carrying Benzothiazole and Substituted Phenol Groups

Behera

Manivannan

2017

ChemistrySelect

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“…Electronphonon interaction in such a tube can be modeled by modified nonlinear Schrodinger equation which in dimensionless form reads [12] i ൬ ߲߰ ‫ݐ߲‬ ൰ Δψ 4gψ ቆ|ψ|…”

Section: Our Modelmentioning

confidence: 99%

“…We show that this MNLSE, unlike the conventional nonlinear Schrodinger equation, possesses static localized solutions at any dimensionality when the effective nonlinearity parameter is larger than a certain critical value which depends on the dimensionality of the system under study 6.7 . Self-trapped (polaron) states of quasiparticles (electrons or holes) and electron-phonon coupling in nanostructures were discussed in 8,9,10,11,12 . In this paper we study the existence of localized states in K-doped (10,10) Carbon Nanotube using numerical methods.…”

Section: Introductionmentioning

confidence: 99%

Electron Phonon Interaction in K-Doped (10,10) Carbon Nanotube

Upadhyay¹,

Nagar²

2013

Int. J. Mod. Phys. Conf. Ser.

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Depending on their strength, the electron-phonon interactions in systems involving electron moving in deformable lattice of atoms can become very important for the dynamics of such systems and may lead to some very interesting phenomena eg. quasiparicle self trapping. We consider Metallic Carbon Nanotube with an excess electron. We choose 2-dimensional hexagonal lattice to be periodic and to have a large extension in one direction and a small extension in the other direction. We study the Modified Nonlinear Schrodinger Equation in Carbon Nanotube (10,10) where the modified term arises due to interaction between excess electron field and lattice distortion and gives stabilization to the solution. This interaction symbolizes strength of nonlinearity in the system. We solved this equation numerically using cylindrical coordinates and found that solutions depend crucially on electron-phonon interaction coefficient.

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Electron phonon interaction in K-doped (9,9) carbon nanotube

Cited by 2 publications

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Nanomolar Detection of Al(III) Ion by Hydrazones Carrying Benzothiazole and Substituted Phenol Groups

Nanomolar Detection of Al(III) Ion by Hydrazones Carrying Benzothiazole and Substituted Phenol Groups

Electron Phonon Interaction in K-Doped (10,10) Carbon Nanotube

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