A comparative study of amorphous silicon carbide and silicon rich oxide for light emission applications

Vivaldo, Israel; Moreno, Mario; Torres, Alfonso; Ambrosio, Roberto; Rosales, Pedro; Carlos, Netzahualcoyotl; Calleja, W.; Monfil, K.; Benítez, Alfredo

doi:10.1016/j.jlumin.2017.05.048

Cited by 17 publications

(7 citation statements)

References 35 publications

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“…The increase from 12 to 15 W in deposition power did not induce an increase in the photoluminescence intensity; however, there was a shift in the emission band (as the peak is located at 2.34 eV). These results are consistent in agreement with some previous studies [20,21].…”

Section: Results and Analysissupporting

confidence: 94%

“…increase from 12 to 15 W in deposition power did not induce an increase in the photoluminescence intensity; however, there was a shift in the emission band (as the peak is located at 2.34 eV). These results are consistent in agreement with some previous studies [20,21]. The PL results showed significant changes in the intensity as a function of silane rate; however, no trend could be identified.…”

Section: Results and Analysissupporting

confidence: 93%

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Enhanced Photoluminescence of Hydrogenated Amorphous Silicon Carbide Thin Films by Means of a Fast Thermal Annealing Process

Vivaldo

Ambrosio

López³

et al. 2020

Materials

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In this paper, the photoluminescence (PL) of hydrogenated amorphous silicon carbide (a-Si1−xCx:H) thin films obtained by Plasma Enhancement Chemical Vapor Deposition (PECVD) is reported. Strong PL is obtained after a fast annealing process for 60 s at temperatures of 200, 400, 600, and 800 °C. The thin films are characterized using Fourier Transform Infrared spectroscopy (FTIR), PL spectroscopy, and Energy-Dispersive X-ray Spectroscopy (EDS). According to the results of the structural characterization, it is deduced that a structural rearrangement of the amorphous matrix is carried out during the fast annealing process, which results in different degrees of oxidation on the a-Si1−xCx:H films. The PL peak position shifts towards higher energies as the temperature increases. The sample deposited with a silane/methane flux ratio of 37.5 at an Radio Frequency (RF) power of 6 W experiences an increase in PL intensity of more than nine times, with a displacement in the peak position from 2.5 eV to 2.87 eV, at 800 °C. From the PL analysis, we observe two emission bands: one centered in the near infrared and other in the visible range (with a blue peak). This study opens the possibility to use such thin films in the development of optoelectronics devices, with potential for application in solar cells.

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Section: Results and Analysissupporting

confidence: 94%

Section: Results and Analysissupporting

confidence: 93%

Enhanced Photoluminescence of Hydrogenated Amorphous Silicon Carbide Thin Films by Means of a Fast Thermal Annealing Process

Vivaldo

Ambrosio

López³

et al. 2020

Materials

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“…Consequently, several fillers can be used to be incorporated into polymer-based nanocomposites. Silicon carbide (SiC) is one of the main filler for advanced high power and high temperature electronic applications 15,16 . Silicon carbide has innovated in the development of structural ceramics with high performance in the production of materials that request a low coefficient of thermal expansion and high thermal conduction characteristics 17 .…”

Section: Introductionmentioning

confidence: 99%

Poly (Methyl Methacrylate)-SiC Nanocomposites Prepared Through in Situ Polymerization

et al. 2018

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In this study, polymeric nanocomposites based on poly(methyl methacrylate) (PMMA) and silicon carbide (SiC) nanoparticles were prepared by radical mass polymerization in the presence of filler. Nanoparticles of SiC with and without surface treatment with organosilane were obtained .The nanocomposites were characterized by X-ray fluorescence (XRF), infrared spectroscopy (FTIR), thermogravimetry (TGA) and Field Emission Gun Scanning Electron Microscopy (FEG SEM) with an energy dispersive x-ray spectroscopy (EDS) detector. The produced nanocomposites showed welldispersed SiC incorporation in the PMMA matrix. The results pointed that the surface treatment on SiC fillers was successful on enhancing the interaction between the organic matrix and the inorganic filler.

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“…In this method, PMMA was selected as a polymer while SiC was selected as filler for the incorporation into the polymer. SiC is a popular filler used in advanced high‐power, high‐temperature electronic uses 48,49 . SiC has pioneered the growth of high‐performance structural ceramics for the production of materials with high thermal expansion and less coefficient, and greater thermal conduction properties 50 .…”

Section: Different Types Of Polymeric Nanocomposite and Their Synthesismentioning

confidence: 99%

Advances in polymeric nanocomposites for automotive applications: A review

Shah

Bhaliya

Patel³

et al. 2022

Polymers for Advanced Techs

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The relevance of polymer nanocomposites (PNCs) in the automobile industry has been booming for the last few decades because this kind of material can fulfill the need for lightweight vehicles, and that leads to low gasoline intake and drain gas emission. This review covers the fundamental aspects of polymer-based nanocomposites and their application in the automotive sector. Following an introduction that comprises the need for PNCs and their rewards over traditional materials for instance, excellent thermal and mechanical strength, eco-friendliness, affordable corrosion resistance, low density, and so on. In addition, the review also covers how these composites can be useful in automotive sector applications. Apart from this, the second section covers the different synthetic approaches (solution casting, melt blending, electrodeposition, electrospinning, in-situ polymerization, and others) for the manufacturing of PNCs and their characterizations using scanning electron microscopy, transmission electron microscopy, Fourier transform electron microscopy, X-ray diffraction spectroscopy, energy dispersive X-ray analysis, and other techniques. Afterward, the applications of PNCs in different parts of vehicles such as automotive coatings, tires, glasses, and inner parts of the vehicles, extra will be discussed. Finally, discussions related to key areas of PNCs and future perspectives are explained.

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A comparative study of amorphous silicon carbide and silicon rich oxide for light emission applications

Cited by 17 publications

References 35 publications

Enhanced Photoluminescence of Hydrogenated Amorphous Silicon Carbide Thin Films by Means of a Fast Thermal Annealing Process

Enhanced Photoluminescence of Hydrogenated Amorphous Silicon Carbide Thin Films by Means of a Fast Thermal Annealing Process

Poly (Methyl Methacrylate)-SiC Nanocomposites Prepared Through in Situ Polymerization

Advances in polymeric nanocomposites for automotive applications: A review

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