Decoration of CdS nanoparticles on MWCNT's by simple solution chemistry

Baviskar, Prashant K.; Chavan, Padmakar G.; Kalyankar, Namdev V.; Sankapal, Babasaheb R.

doi:10.1016/j.apsusc.2012.04.081

Cited by 16 publications

(2 citation statements)

References 28 publications

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“…Nanostructures and nanomaterials have attracted research interest in recent years owing to their demonstrated unique and superior properties over their conventional bulk materials 1,2 . Due to their tunable optoelectronic, magnetic and chemical properties, nanostructured materials have been explored for potential applications in energy generation, optoelectronics, catalysis, and biomedicine.…”

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confidence: 99%

Enhanced Field Emission Properties of Au/SnSe Nano-heterostructure: A Combined Experimental and Theoretical Investigation

Rondiya

Jadhav

Chavan

et al. 2020

Sci Rep

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We report the field emission properties of two-dimensional SnSe nanosheets (NSs) and Au/SnSe nanoheterostructure (NHS) prepared by a simple and economical route of one-pot colloidal and sputtering technique. Field Emission Scanning Electron Microscope (FESEM) analysis reveal surface protrusions and morphology modification of the SnSe NSs by Au deposition. By decorating the SnSe NSs with Au nanoparticles, significant improvement in field emission characteristics were observed. A significant reduction in the turn-on field from 2.25 V/µm for the SnSe NSs to 1.25 V/µm for the Au/SnSe NHS was observed. Emission current density of 300 µA/cm 2 has been achieved at an applied field of 4.00 and 1.91 V/µm for SnSe NSs and Au/SnSe NHS, respectively. Analysis of the emission current as a function of time also demonstrated the robustness of the present Au/SnSe NHS. Consistent with the experimental data, our complementary first-principles DFT calculations predict lower work function for the Au/SnSe NHS compared to the SnSe NSs as the primary origin for improved field emission. The present study has evidently provided a rational heterostructure strategy for improving various field emission related applications via surface and electronic modifications of the nanostructures.

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confidence: 99%

Enhanced Field Emission Properties of Au/SnSe Nano-heterostructure: A Combined Experimental and Theoretical Investigation

Rondiya

Jadhav

Chavan

et al. 2020

Sci Rep

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“…7,8 Fabrication of CdS/CNTs nanohybrids forming efficient photoelectrochemical systems were reported, 9 while also used as antimicrobial agents. 10 The most common synthetic procedure for the preparation of CdS/CNTs hybrids is through a liquid phase deposition process, where Cd 2+ ions are stabilized onto the surface of either oxidized 11 or pristine CNTs in the presence of surfactants [12][13][14] or polymers [15][16][17] and subsequently reduced by sulfide anions. To this end, oxidized CNTs were initially functionalized at their tips with poly(amidoamine) (PAMAM) dendrons ending to an ethylenediamine core, which then served as template for the encapsulation and stabilization of monodispersed CdS nanoparticles with controllable size.…”

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confidence: 99%

Immobilized CdS Nanoparticles on Poly(amidoamine)-Functionalized MWCNTs

Chronopoulos

Karousis

Tagmatarchis

2013

ECS J. Solid State Sci. Technol.

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The successful deposition of CdS nanoparticles onto poly(amidoamine)-functionalized MWCNTs was achieved. Initially, tert-butoxycarbonyl-protected amino-terminated aryl units were covalently attached onto the sidewalls of MWCNTs. Then, the bottom-up growth of 2nd generation carboxyl-terminated poly(amidoamine) dendron, covalently attached onto aryl-modified MWCNTs, was achieved. Finally, Cd2+cations, stabilized onto poly(amidoamine)-modified MWCNTs, were reduced in the presence of sulfide anions resulting to the formation of CdS nanoparticles deposited onto MWCNTs. The CdS/MWCNTs nanohybrid material was fully characterized with complementary spectroscopic and thermal techniques. Transmission electron microscopy imaging allowed to directly observing medium-sized CdS nanoparticles of around 20 nm in diameter decorating the skeleton of functionalized MWCNTs, while photoluminescence studies revealed quantitative quenching of the characteristic emission of CdS in the CdS/MWCNTs hybrid, thus suggesting the presence of interesting intrahybrid energy and/or electron transfer phenomena.

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Multi-Walled Carbon Nanotubes

Kukovecz

Kozma

2013

Springer Handbook of Nanomaterials

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a b s t r a c tThermal conductivity of individual multiwalled carbon nanotubes (MWCNT) is measured using a pulsed photothermal reflectance technique. Intrinsic thermal conductivity of individual MWCNT with a diameter 150 nm and length 2 mm at room temperature is extracted to be 2586 W/mK. Individual MWCNT is surrounded by SiO 2 , so parallel resistor model is applied in which SiO 2 supportive is treated as a conducting channel that transports heat in parallel with MWCNT.

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Decoration of CdS nanoparticles on MWCNT's by simple solution chemistry

Cited by 16 publications

References 28 publications

Enhanced Field Emission Properties of Au/SnSe Nano-heterostructure: A Combined Experimental and Theoretical Investigation

Enhanced Field Emission Properties of Au/SnSe Nano-heterostructure: A Combined Experimental and Theoretical Investigation

Immobilized CdS Nanoparticles on Poly(amidoamine)-Functionalized MWCNTs

Multi-Walled Carbon Nanotubes

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