Continuous copper film structures with broadband optical transparency

Liu, Zhengqi; Liu, Guiqiang; Liu, Xiaoshan; Huang, Shan; Liu, Mulin; Fu, Guolan; Gao, Huogui

doi:10.1016/j.matlet.2014.10.025

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…The authors mention thicknesses ranging from 30 to 100 nm. [92] The main advantage of this technique is the monocrystalline growth; thus, theoretically, lower losses for plasmon propagation can be presumed. One big disadvantage of this deposition is the substrate: GaAs, although having high transmittivity in the IR region, cannot be used in the visible part of the spectrum.…”

Section: Aluminum Thin Filmsmentioning

confidence: 99%

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Ultra-thin films for plasmonics: a technology overview

Malureanu

Lavrinenko

2015

Nanotechnology Reviews

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Ultra-thin films with low surface roughness that support surface plasmon-polaritons in the infra-red and visible ranges are needed in order to improve the performance of devices based on the manipulation of plasmon propagation. Increasing amount of efforts is made in order not only to improve the quality of the deposited layers but also to diminish their thickness and to find new materials that could be used in this field. In this review, we consider various thin films used in the field of plasmonics and metamaterials in the visible and IR range. We focus our presentation on technological issues of their deposition and reported characterization of film plasmonic performance.

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Section: Aluminum Thin Filmsmentioning

confidence: 99%

“…In addition, technologically, Cu is replacing aluminum as the material for interconnects. So far, initial experiments with copper-based structures have been reported [91,92], but definitely, deposition of thin copper layers is still at the beginning. Other metals have been addressed rather sporadically.…”

Section: Other Metalsmentioning

confidence: 99%

Ultra-thin films for plasmonics: a technology overview

Malureanu

Lavrinenko

2015

Nanotechnology Reviews

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“…Two-dimensional (2D) organic-inorganic hybrid structures have attracted attention due to their interesting structural and optical properties [1][2][3][4][5]. Copper is one of the most technologically important metals to form as 1D nanowires at the nanoscale [6] and/or 2D thin films [7].…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly method to synthesize and characterize 2D nanostructured (1,2-bis(diphenyl-phosphino)ethyl) tungsten tetracarbonyl methyl red/copper oxide di-layer thin films

2018

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Three-layer thicknesses (T 1 = 50, T 2 = 75 and T 3 = 100 nm) of 1,2-bis(diphenylphosphino)ethyl tungsten tetracarbonyl methyl red (DPE-W-MR) were deposited onto the CuO thin film (50 nm) to produce DPE-W-MR/CuO di-layer thin films by sol-gel spin-coating technique. The composition and the chemical structure of the as-prepared thin films were characterized using various techniques including elemental analysis, Fourier transform infrared spectroscopy, 1 H-NMR and X-ray diffraction (XRD). Scanning electron microscopy was used to investigate the size and shape of the CuO nanoparticles and the fabricated thin films. The films are crystalline as evidenced by the XRD pattern and DPE-W-MR has an orthorhombic crystal system. The crystallite size was calculated from an analysis of the line broadening features using the Scherrer formula; the average crystallite sizes of DPE-W-MR/CuO di-layer thin films are 52.92, 56.24 and 72.26 nm for T 1 , T 2 and T 3 , respectively. Thermogravimetric analysis and the thermal curve of DPE-W-MR complex were studied. Optical properties of DPE-W-MR/CuO di-layer thin films are discussed. The optical band gap energies of DPE-W-MR di-layer thin films/CuO decreased (2.25, 2.1 and 1.88 eV) as the film thickness increased (from T 1 to T 3). Based on the optical results and the quantum confinement effects, the DPE-W-MR/CuO di-layer thin films may be candidates as semiconductor materials for optoelectronic devices.

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