Gas phase fabrication of morphology-controlled ITO nanoparticles and their assembled conductive films

Jiang, Yilun; Chen, Jian; Du, Zhengyang; Liu, Fei; Qin, Yuyuan; Mao, Peng; Han, Mei

doi:10.1039/d2nr06381f

Cited by 3 publications

(3 citation statements)

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“…Next, a dielectric spacer layer (LiF or Al 2 O 3 ) was grown on the surface of the mirror. Finally, a novel gas-phase cluster beam technique was employed to produce Au nanoclusters on the top of the cavity (dielectric/mirror). ,,, Figure a,b shows the scanning electron microscopy (SEM) images of the cross-sectional view and top view of the fabricated structure, respectively. The SEM images clearly show the disorder in both the shape and position of the nanoclusters.…”

Section: Experimental Realization Of the Disordered Plasmonic Metasur...mentioning

confidence: 99%

Broadband and Spectrally Selective Photothermal Conversion through Nanocluster Assembly of Disordered Plasmonic Metasurfaces

et al. 2023

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Plasmonic metasurfaces have been realized for efficient light absorption, thereby leading to photothermal conversion through nonradiative decay of plasmonic modes. However, current plasmonic metasurfaces suffer from inaccessible spectral ranges, costly and time-consuming nanolithographic topdown techniques for fabrication, and difficulty of scale-up. Here, we demonstrate a new type of disordered metasurface created by densely packing plasmonic nanoclusters of ultrasmall size on a planar optical cavity. The system either operates as a broadband absorber or offers a reconfigurable absorption band right across the visible region, resulting in continuous wavelength-tunable photothermal conversion. We further present a method to measure the temperature of plasmonic metasurfaces via surface-enhanced Raman spectroscopy (SERS), by incorporating single-walled carbon nanotubes (SWCNTs) as an SERS probe within the metasurfaces. Our disordered plasmonic system, generated by a bottom-up process, offers excellent performance and compatibility with efficient photothermal conversion. Moreover, it also provides a novel platform for various hot-electron and energy-harvesting functionalities.

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Section: Experimental Realization Of the Disordered Plasmonic Metasur...mentioning

confidence: 99%

Broadband and Spectrally Selective Photothermal Conversion through Nanocluster Assembly of Disordered Plasmonic Metasurfaces

et al. 2023

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“…Gas-phase synthesis technology offers several advantages for the fabrication of complex nanoparticles with a controllable chemical composition and structure. It allows for size control and flexibility in material choice, making it possible to synthesize multi-element nanoparticles with independent control over core size and shell thickness [17]. Gas-phase methods also provide a more flexible choice of materials and avoid the use of solvents, which is advantageous for applications in catalysis and optoelectronics [18].…”

Section: Of 12mentioning

confidence: 99%

Ag Nanocluster Production through DC Magnetron Sputtering and Inert Gas Condensation: A Study of Structural, Kelvin Probe Force Microscopy, and Optical Properties

Musa,

Qamhieh,

Mahmoud

2023

Nanomaterials

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Silver nanoclusters are valuable for a variety of applications. A combination of direct current (DC) magnetron sputtering and inert gas condensation methods, employed within an ultra-high vacuum (UHV) system, was used to generate Ag nanoclusters with an average size of 4 nm. Various analytical techniques, including Scanning Probe Microscopy (SPM), X-ray Diffraction (XRD), Kelvin Probe Force Microscopy (KPFM), UV-visible absorption, and Photoluminescence, were employed to characterize the produced Ag nanoclusters. AFM topographic imaging revealed spherical nanoparticles with sizes ranging from 3 to 6 nm, corroborating data from a quadrupole mass filter (QMF). The XRD analysis verified the simple cubic structure of the Ag nanoclusters. The surface potential was assessed using KPFM, from which the work function was calculated with a reference highly ordered pyrolytic graphite (HOPG). The UV-visible absorption spectra displayed peaks within the 350–750 nm wavelength range, with a strong absorption feature at 475 nm. Additionally, lower excitation wavelengths resulted in a sharp peak emission at 370 nm, which became weaker and broader when higher excitation wavelengths were used.

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“…According to the type of conductive properties, the electric heating materials can be divided into intrinsic electric heating materials and electric heating composites. − The intrinsic electric heating materials consist of metal and metal oxide electric heating materials. Metal electric heating materials are mainly made of metals and precious metals, which show superior electrical conductivity but suffer from easy oxidation, short lifespan, fragility, low efficiency, and high cost. − Metal oxide electric heating materials, mainly composed of indium tin oxide (ITO), possess good electrical conductivity and transparency .…”

Section: Introductionmentioning

confidence: 99%

Superior Instant Heating and Electrothermal Performances of Interconnected Graphene-Expanded Graphite-Based Electric Heating Composite

Han,

Zhang,

Mei

et al. 2024

ACS Appl. Nano Mater.

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Electric heating composites play an important role in the rapid temperature response and electric-thermal conversion of instant electric heating tubes. However, the preparation of an electric heating composite with superior electrothermal performance and high-power density for high-temperature applications above 300 °C remains a challenge. Herein, a high-temperature electric heating composite was prepared with continuous fluffy three-dimensional interconnected graphene-expanded graphite hybrid conductive fillers (GGCF). A maximum temperature of 310 °C and a high heating rate of 450 °C•min −1 can be obtained in the PI electric heating film along with a high electrothermal radiation conversion efficiency of 44% and electrothermal conversion efficiency of 0.27 W•°C −1 . The corresponding steady-state temperature is 5.1 and 12.7 times higher than those with equivalent alone rGO and alone GP, respectively. Furthermore, the final Al electric heating tube can heat the flowing water to 100 °C within 6 s at a typical water flow rate of 380 mL•min −1 and 2000 W. The 2 h continuous heating demonstrates long-term stability with a power fluctuation below 3%. 770 cycles of heating and cooling verify the excellent heat shock resistance and repeatability. The superior electrothermal performance, instant heating function, long-term stability, and high safety of this electric heating composite show great potential in electric heating fields.

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Gas phase fabrication of morphology-controlled ITO nanoparticles and their assembled conductive films

Abstract: ITO nanoparticles were generated in the gas phase with a magnetron plasma gas aggregation cluster source. Their morphologies were modified by modulating the discharging power of magnetron sputtering. The shape...

Cited by 3 publications

References 58 publications

Broadband and Spectrally Selective Photothermal Conversion through Nanocluster Assembly of Disordered Plasmonic Metasurfaces

Broadband and Spectrally Selective Photothermal Conversion through Nanocluster Assembly of Disordered Plasmonic Metasurfaces

Ag Nanocluster Production through DC Magnetron Sputtering and Inert Gas Condensation: A Study of Structural, Kelvin Probe Force Microscopy, and Optical Properties

Superior Instant Heating and Electrothermal Performances of Interconnected Graphene-Expanded Graphite-Based Electric Heating Composite

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