Broadband optical absorption of amorphous carbon/Ag nanocomposite films and its potential for solar harvesting applications

Zoubos, H; Κουτσοκέρας, Λουκάς; Anagnostopoulos, D. F.; Lidorikis, Elefterios; Kalogirou, Soteris A.; Wildes, A.; Kelires, P. C.; Patsalas, P.

doi:10.1016/j.solmat.2013.06.019

Cited by 42 publications

(25 citation statements)

References 54 publications

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“…Figure 8 presents the tptical absorbance spectra of DLC:Cu films. The absorbance spectra of DLC:Cu films containing 11.43 at.% Cu are similar to the absorbance spectra of conventional undoped DLC films [23][24][25][26], i.e., absorbance maximum is seen in near ultraviolet range (at~240 nm) and the absorbance decreases with the wavelength. The increase in Cu amount up to 22.48 at.% results in a substantial decrease of the light absorbance in the lower wavelengths range and absorption maximum mentioned above in this study is barely seen.…”

Section: Resultssupporting

confidence: 57%

Hydrogen-Free Diamond Like Carbon Films with Embedded Cu Nanoparticles: Structure, Composition and Reverse Saturable Absorption Effect

et al. 2020

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In the present research, hydrogen-free diamond like carbon films with embedded copper nanoparticles (DLC:Cu) were grown by simultaneous DC magnetron sputtering of the graphite and copper targets. X-ray photoelectron spectroscopy was used to define the composition of the samples. Atomic force microscopy studies of diamond, like carbon films containing different amount of copper, revealed wide range of the surface morphologies as well as sizes and shapes of the embedded copper nanoclusters. Raman scattering spectra of all the DLC:Cu films investigated were typical for diamond-like carbon (including samples containing more than 60 at.% of copper). sp3/sp2 carbon bond ratio in the films decreased with the increase of the Cu amount in the films. According to the optical absorbance measurements, the surface plasmon resonance related absorption peak of DLC:Cu films was only detected in the films containing 28.45 at.% Cu. For the diamond like carbon films containing more than 40 at.% Cu, a further increase of Cu amount in the nanocomposite resulted in minor changes of the absorbance spectra. Some correlation between the changes of the samples surface morphology as well as phase structure and optical absorbance spectra of the films was found. In all cases, reverse-saturable absorption of the DLC:Cu films was observed. For some DLC:Cu films damage of the sample occurred at higher light fluences that can be related to the heating that is caused by the surface plasmon resonance effect.

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Section: Resultssupporting

confidence: 57%

Hydrogen-Free Diamond Like Carbon Films with Embedded Cu Nanoparticles: Structure, Composition and Reverse Saturable Absorption Effect

et al. 2020

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“…It has already been implemented for the reshaping of plasmonic nanoparticles, [8][9][10][11] alloying at the nanoscale 12 and nanomanipulation in optical tweezers. [21][22][23][24] At the very heart of these applications lie the light-matter interactions, in the form of coherent surface plasmon oscillations excited by the incident light at specific frequencies with high selectivity on the metal nanostructure's size and shape. 10 In this work we show that it is possible to overcome these limitations and substantially improve the control of bottom-up nano-patterning.…”

Section: Introductionmentioning

confidence: 99%

Selective modification of nanoparticle arrays by laser-induced self assembly (MONA-LISA): putting control into bottom-up plasmonic nanostructuring

et al. 2016

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Nano-structuring of metals is one of the greatest challenges for the future of plasmonic and photonic devices. Such a technological challenge calls for the development of ultra-fast, high-throughput and low-cost fabrication techniques. Laser processing, accounts for the aforementioned properties, representing an unrivalled tool towards the anticipated arrival of modules based in metallic nanostructures, with an extra advantage: the ease of scalability. In the present work we take advantage of the ability to tune the laser wavelength to either match the absorption spectral profile of the metal or to be resonant with the plasma oscillation frequency, and demonstrate the utilization of different optical absorption mechanisms that are size-selective and enable the fabrication of pre-determined patterns of metal nanostructures. Thus, we overcome the greatest challenge of Laser Induced Self Assembly by combining simultaneously large-scale character with atomic-scale precision. The proposed process can serve as a platform that will stimulate further progress towards the engineering of plasmonic devices.

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“…Also, the C-Ag thin films present a high interest thanks to the prospect of various applications such as catalysts, optical filters, and photographic processes for biology and medicine [30,31]. The incorporation of silver into carbon films offers the possibility to provide coatings that are hemocompatible and antibacterial [32][33][34][35].…”

Section: Binary Composites Deposited By Tva Technologymentioning

confidence: 99%

DLC Thin Films and Carbon Nanocomposite Growth by Thermionic Vacuum Arc (TVA) Technology

Vladoiu¹,

Poroşnicu²,

Mandes³

et al. 2016

Diamond and Carbon Composites and Nanocomposites

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The aim of this chapter is to report the results on synthesis DLC thin films and carbon nanocomposites by the versatile nanofabrication method based on plasma entitled thermionic vacuum Arc TVA . TV" technology is based on the localized ignition of the arc plasma in vacuum conditions. "mong thin film coating methods by vacuum deposition techniques with high purity, low roughness, and good adhesion on the substrates, TVA is one of the major suitable methods to become a powerful coating technology. Two or three different TV" discharges can be ignited simultaneously in the same chamber for multi-material processing using TV" and separate power supplies. These TV" discharges are localized and do not interfere with each other. Simultaneous two or three TV" discharges were already used for the production of alloy/composite of various materials. This is due to the high versatility concerning the configuration of experimental arrangements, taking into account the number of electron guns, symmetry of the electrodes, relative position of the anode versus cathode, and also the huge opportunity to combine the materials to be deposited bi-and multi-layers, nanocomposites, or alloys in order to have specific applications. This chapter presents the comparative results concerning the surface-free energy information processing, the reflective index, the hardness, and the morphology to provide a coherent description of the diamond-like carbon films and carbon nanocomposites synthesized by thermionic vacuum arc TV" and related configurations where Me = "g, "l, Cu, Ni, and Ti: binary composites CMe, C-Si and ternary composites C+Si+Me . The results include reports on the distribution in size, surface, geometry, and dispersion of the nanosized constituents, tailoring and understanding the role of interfaces between structurally or chemically dissimilar phases on bulk properties, as well as the study of physical properties of nanocomposites structural, chemical, mechanical, tribological . The results presented

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Broadband optical absorption of amorphous carbon/Ag nanocomposite films and its potential for solar harvesting applications

Cited by 42 publications

References 54 publications

Hydrogen-Free Diamond Like Carbon Films with Embedded Cu Nanoparticles: Structure, Composition and Reverse Saturable Absorption Effect

Hydrogen-Free Diamond Like Carbon Films with Embedded Cu Nanoparticles: Structure, Composition and Reverse Saturable Absorption Effect

Selective modification of nanoparticle arrays by laser-induced self assembly (MONA-LISA): putting control into bottom-up plasmonic nanostructuring

DLC Thin Films and Carbon Nanocomposite Growth by Thermionic Vacuum Arc (TVA) Technology

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