Polyaniline/carbon nanotube/CdS quantum dot composites with enhanced optical and electrical properties

Goswami, Mrinmoy; Ghosh, Ranajit; Maruyama, Toru; Meikap, Ajit Kumar

doi:10.1016/j.apsusc.2015.12.101

Cited by 12 publications

(7 citation statements)

References 27 publications

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“…Depending on the material microstructure, characteristics of incident beam can be affected when passing through it either by transmission, absorption or reflectance [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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Correlation between microstructures and optical properties of polyaniline/single‐walled carbon nanotubes composites

2018

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The polyaniline was doped with sulfonic acid and functionalized with single-walled carbon nanotubes. The effects of single-walled carbon nanotubes (SWCNTs) inserting and thermal annealing at T = 393 K, during 24 h are carried out by optical and structural study. Structural characterizations of D-polyaniline (PANI) or D-PANI/SWCNTs compounds at both pristine and annealed states were obtained by Fourier Transform infrared analysis and scanning and transmission electron microscopies. Optical parameters including absorption coefficient, optical transition type, energy gaps, skin depth, and extinction coefficient have been also elucidated from optical absorption measurements. Moreover, the characteristics of the localized states introduced either by SWCNTs adding and/or annealing temperature are carried out. By referring to the starting material, the direct (indirect) optical band gap was found to be reduced from 3.91 (3.75) to 2.35 (2.24) eV, after SWCNTs inserting and annealing. Moreover, new localized states having a band width of 390 meV are created at 1.25 eV. The SWCNTS dispersion quality on the organic matrix and the PANI self-crosslinking lead to the charge transfer and the resulting interpenetrating network can be used as active layers for organic solar cells. POLYM. COMPOS., 40: E821-E831, 2019.

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“…Depending on the material microstructure, characteristics of incident beam can be affected when passing through it either by transmission, absorption or reflectance [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…FIG.1. FTIR spectra in full wavenumber range(1) and in the range (900-1,200 cm −1 ) (2) of pure PANI in the pristine (a) and annealed (b) states and those of the PANI/SWCNTs composite at the pristine (c) and annealed (d) states.…”

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confidence: 99%

Correlation between microstructures and optical properties of polyaniline/single‐walled carbon nanotubes composites

2018

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“…Nano-metal catalyst refers to a nano-level solid catalyst with metal as the main active component, mainly noble metals and transition metal elements such as iron, cobalt, and nickel [40,41]. According to whether the active component is supported on the carrier, it can be divided into unsupported metal catalysts and supported metal catalysts.…”

Section: Nano-metal Catalystmentioning

confidence: 99%

Oxygen Reduction Reaction in the Field of Water Environment for Application of Nanomaterials

Xie

Alhassan

et al. 2020

Nanomaterials

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Water pollution has caused the ecosystem to be in a state of imbalance for a long time. It has become a major global ecological and environmental problem today. Solving the potential hidden dangers of pollutants and avoiding unauthorized access to resources has become the necessary condition and important task to ensure the sustainable development of human society. To solve such problems, this review summarizes the research progress of nanomaterials in the field of water aimed at the treatment of water pollution and the development and utilization of new energy. The paper also tries to seek scientific solutions to environmental degradation and to create better living environmental conditions from previously published cutting edge research. The main content in this review article includes four parts: advanced oxidation, catalytic adsorption, hydrogen, and oxygen production. Among a host of other things, this paper also summarizes the various ways by which composite nanomaterials have been combined for enhancing catalytic efficiency, reducing energy consumption, recycling, and ability to expand their scope of application. Hence, this paper provides a clear roadmap on the status, success, problems, and the way forward for future studies.

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“…52 PANI/CdS nanocomposites have biosensing applications. Goswami et al 53 developed polyaniline, carbon nanotube (CNT), and cadmium sulfide-based nanocomposite through in situ polymerization. Increased CdS quantum dot content in a nanocomposite enhanced the free-exciton transition.…”

Section: Polyaniline/inorganic Quantum Dotmentioning

confidence: 99%

“…Photoluminescence spectra of PANI-based nanocomposite 53. PANI: polyaniline; CNT: carbon nanotube; CdS: cadmium sulphide.…”

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confidence: 99%

Polyaniline and quantum dot-based nanostructures: Developments and perspectives

Kausar

2020

Journal of Plastic Film & Sheeting

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Quantum dots are 2–5 nm nanoparticles with exceptional optical, electronic, luminescence, and semiconducting properties. Polyaniline is an exclusive conjugated polymer. This article reviews recent efforts, scientific trials, and technological solicitations of the polyaniline/quantum dot-based nanocomposites. Polyaniline/quantum dot mixtures form a unique composition for advance materials and applications. Carbon dots, graphene quantum dots, and several inorganic quantum dots have been added to a conducting polymer. A functional quantum dot may develop electrostatic, van der Waal, and π–π stacking interactions with the conjugated polymer backbone. Uniform quantum dot dispersion in polyaniline may result in inimitable morphology, electrical conductivity, electrochemical properties, capacitance, and sensing features. Finally, this review expounds on the many applications for polyaniline/quantum dot nanocomposites including dye-sensitized solar cell, supercapacitor, electronics, gas sensor, biosensor, and bioimaging.

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Polyaniline/carbon nanotube/CdS quantum dot composites with enhanced optical and electrical properties

Cited by 12 publications

References 27 publications

Correlation between microstructures and optical properties of polyaniline/single‐walled carbon nanotubes composites

Correlation between microstructures and optical properties of polyaniline/single‐walled carbon nanotubes composites

Oxygen Reduction Reaction in the Field of Water Environment for Application of Nanomaterials

Polyaniline and quantum dot-based nanostructures: Developments and perspectives

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