P. H. Tjahjanti, Iswanto, E. Widodo, Sholeh Pamuji
Materials of thermoplastic polymer when they break is usually thrown away, or is recycled which requires a long process. The purpose of this study is splicing the broken thermoplastic polymer using hot gas hand welding with different variations of welding wire/electrodes. Materials of thermoplastic polymer used are Polyethylene (PE), Polypropylene (PP), and Polyvinyl chloride (PVC) by using welding wire like the three materials. The method is carried out by using hot gas hand welding, there are two materials that cannot be connected, namely PE with PVC welding wire, and PP with PVC welding wire. The permeable liquid penetrant test is PP with PE welding wire, and PVC with PE welding wire. The longest elongation is PE with PE welding wire is 15.96% and the best of bending result is PVC with PVC welding wire reach value 181.2 kgf/mm2. The microstructure was all described in Scanning Electron Microscopy (SEM) observations.
{"title":"Examination of Thermoplastic Polymers for Splicing and Bending","authors":"P. H. Tjahjanti, Iswanto, E. Widodo, Sholeh Pamuji","doi":"10.4028/p-8myjhn","DOIUrl":"https://doi.org/10.4028/p-8myjhn","url":null,"abstract":"Materials of thermoplastic polymer when they break is usually thrown away, or is recycled which requires a long process. The purpose of this study is splicing the broken thermoplastic polymer using hot gas hand welding with different variations of welding wire/electrodes. Materials of thermoplastic polymer used are Polyethylene (PE), Polypropylene (PP), and Polyvinyl chloride (PVC) by using welding wire like the three materials. The method is carried out by using hot gas hand welding, there are two materials that cannot be connected, namely PE with PVC welding wire, and PP with PVC welding wire. The permeable liquid penetrant test is PP with PE welding wire, and PVC with PE welding wire. The longest elongation is PE with PE welding wire is 15.96% and the best of bending result is PVC with PVC welding wire reach value 181.2 kgf/mm2. The microstructure was all described in Scanning Electron Microscopy (SEM) observations.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"46 1","pages":"87 - 97"},"PeriodicalIF":0.4,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85427614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. A. Pido, A. Munio, Leo Cristobal C. Ambolode II
This research investigated the Hydrogen doping of the single-walled carbon nanotube (HCNT) with encapsulated cellulose, (C6H10O5)2, and provide theoretical predictions on the properties of the resulting complex system. After full structural optimization, two different bond lengths and angles in the HCNT and (C6H10O5)2/HCNT system were calculated. Further, it was found that substitutional H atoms acted as charge acceptors and drove necessary rearrangements in the valence region. The (C6H10O5)2 caused some peaks at the valence band mainly caused by the p orbitals of the oxygen atoms. A bandgap decrease has been observed for the (C6H10O5)2/HCNT system. The results are consistent with the previous works which demonstrated the possibility of band gap engineering in CNTs.
{"title":"Ab Initio Calculations of the Atomic Structure, Stability, and Electronic Properties of (C6H10O5)2 Encapsulation into Hydrogen-Doped Carbon Nanotube","authors":"A. A. Pido, A. Munio, Leo Cristobal C. Ambolode II","doi":"10.4028/p-3uk80a","DOIUrl":"https://doi.org/10.4028/p-3uk80a","url":null,"abstract":"This research investigated the Hydrogen doping of the single-walled carbon nanotube (HCNT) with encapsulated cellulose, (C6H10O5)2, and provide theoretical predictions on the properties of the resulting complex system. After full structural optimization, two different bond lengths and angles in the HCNT and (C6H10O5)2/HCNT system were calculated. Further, it was found that substitutional H atoms acted as charge acceptors and drove necessary rearrangements in the valence region. The (C6H10O5)2 caused some peaks at the valence band mainly caused by the p orbitals of the oxygen atoms. A bandgap decrease has been observed for the (C6H10O5)2/HCNT system. The results are consistent with the previous works which demonstrated the possibility of band gap engineering in CNTs.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"48 1","pages":"53 - 62"},"PeriodicalIF":0.4,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82600006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Composite structures utilized in defence and aerospace applications might be subjected to impacts due to bird strike, tool dropping and bullet penetration. One of the approaches to this problem is to add nano tubes and nano particles to resin systems in order to improve bonding between fibres and matrix materials. Different nano-particles or nano-tubes of clays, alumina, silica, carbon and graphene have been analysed in composite systems in the literature so far because of the improved mechanical properties. In this study, the low velocity impact behaviour of the aramid fibre reinforced epoxy composite plates, containing two new nano-particles of TiC and ZrC which are not studied formerly, are searched experimentally. After the low velocity impact tests, it is concluded that plates containing titanium carbide nano-particles and zirconium nano-particles yielded 19 % and 4 % respectively less penetration in comparison with particle free plates. In other words, titanium carbide nano-particles contained plates showed more resistance against the impact by 19 % against to particle free plates. These results showed that TiC and ZrC nano particles might be also good contributors for the impact resistance of composite structure.
{"title":"Low Velocity Impact Behaviour of Composite Laminates Containing TiC and ZrC Nanoparticles in Resin System","authors":"Pelin Alabay, F. Elaldi","doi":"10.4028/p-ul755z","DOIUrl":"https://doi.org/10.4028/p-ul755z","url":null,"abstract":"Composite structures utilized in defence and aerospace applications might be subjected to impacts due to bird strike, tool dropping and bullet penetration. One of the approaches to this problem is to add nano tubes and nano particles to resin systems in order to improve bonding between fibres and matrix materials. Different nano-particles or nano-tubes of clays, alumina, silica, carbon and graphene have been analysed in composite systems in the literature so far because of the improved mechanical properties. In this study, the low velocity impact behaviour of the aramid fibre reinforced epoxy composite plates, containing two new nano-particles of TiC and ZrC which are not studied formerly, are searched experimentally. After the low velocity impact tests, it is concluded that plates containing titanium carbide nano-particles and zirconium nano-particles yielded 19 % and 4 % respectively less penetration in comparison with particle free plates. In other words, titanium carbide nano-particles contained plates showed more resistance against the impact by 19 % against to particle free plates. These results showed that TiC and ZrC nano particles might be also good contributors for the impact resistance of composite structure.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"79 1","pages":"25 - 35"},"PeriodicalIF":0.4,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83772098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohamed Kamal Khalaf, Ahmed Roshdy Elsakhry, Sameh H. Ismail, M. Abdel-Hamied, G. Mohamed
The most of limestone objects in museums, storehouses and archaeological sites suffered from fragility and weakness which lead to the degradation of these artifacts. The present paper aims to evaluate the use of some nanolime-silica core-shell for consolidation process of these weak limestone artifacts. Two concentrations (5% and 10% w/w) were prepared for consolidating the aged limestone cubic samples. After complete drying, the cubic stones were exposed to the accelerated heat aging. The evaluation of consolidation process for the treated and aged treated samples was performed by some analytical methods such as measurement of physical properties and compressive strength. While, the investigation of surface morphology was carried out by scanning electron microscope (SEM) and measurement of contact angle. The characterization process for the prepared core-shell showed the smoothness and spherical shape of the grains with approximate size of 72 nm. The results of physical properties revealed that the treated samples with 10% of nanolime-silica core-shell gave the lowest porosity (15.57%) and water absorption (6.26%). Additionally, the treated samples with 10% concentration of nanolime-silica core-shell gave the highest values of compressive strength (21.23 Cm2/ Kg) and contact angle (122.78°). Moreover, the investigation using SEM revealed that the smoothness and good penetration for the treated sample with 10% concentration of nanolime-silica core-shell. The results of the present study revealed that the efficiency of consolidation process was maximum using 10% concentration of nanolime-silica core-shell and hence it was applied for consolidation of an archaeological limestone octagonal column, Egypt.
{"title":"Evaluation of Nanolime-Silica Core-Shell for Consolidation of Egyptian Limestone Samples with Application on an Archaeological Object","authors":"Mohamed Kamal Khalaf, Ahmed Roshdy Elsakhry, Sameh H. Ismail, M. Abdel-Hamied, G. Mohamed","doi":"10.4028/p-ant5zg","DOIUrl":"https://doi.org/10.4028/p-ant5zg","url":null,"abstract":"The most of limestone objects in museums, storehouses and archaeological sites suffered from fragility and weakness which lead to the degradation of these artifacts. The present paper aims to evaluate the use of some nanolime-silica core-shell for consolidation process of these weak limestone artifacts. Two concentrations (5% and 10% w/w) were prepared for consolidating the aged limestone cubic samples. After complete drying, the cubic stones were exposed to the accelerated heat aging. The evaluation of consolidation process for the treated and aged treated samples was performed by some analytical methods such as measurement of physical properties and compressive strength. While, the investigation of surface morphology was carried out by scanning electron microscope (SEM) and measurement of contact angle. The characterization process for the prepared core-shell showed the smoothness and spherical shape of the grains with approximate size of 72 nm. The results of physical properties revealed that the treated samples with 10% of nanolime-silica core-shell gave the lowest porosity (15.57%) and water absorption (6.26%). Additionally, the treated samples with 10% concentration of nanolime-silica core-shell gave the highest values of compressive strength (21.23 Cm2/ Kg) and contact angle (122.78°). Moreover, the investigation using SEM revealed that the smoothness and good penetration for the treated sample with 10% concentration of nanolime-silica core-shell. The results of the present study revealed that the efficiency of consolidation process was maximum using 10% concentration of nanolime-silica core-shell and hence it was applied for consolidation of an archaeological limestone octagonal column, Egypt.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"2 1","pages":"91 - 102"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74611173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pratyangga Surya Dyaninggar, S. J. Santosa, B. Rusdiarso
Gold nanoparticles (AuNPs) have been successfully synthesized using L-Ascorbic Acid as a reducing agent and p-Aminobenzoic Acid as a capping agent. These AuNPs were used to detect and quantify Chromium(III) as a pollutant utilizing its unique characteristic called surface plasmon resonance (SPR). The change of SPR and color of AuNPs then was employed to determine the concentration of Cr(III) by using colorimetric and Digital Image Colorimetric methods. Digital Image Colorimetry allowed to development of an easier and cheaper way to detect and quantify Cr(III). AuNPs capped p-aminobenzoic acid (AuNPs-PABA) were synthesized at room temperature without using any heating method. Then synthesized AuNPs-PABA were characterized using UV-Visible spectrometer and Transmission Electron Microscope. This AuNPs-PABA then got contacted to Cr(III) and color-changing happened in AuNPs-PABA was analyzed using UV-Vis Spectrometer and captured for Digital Image Colorimetric. The result showed that Digital Image Colorimetric method has a very big potential to be developed for AuNPs-based detection and quantification of Cr(III) as confirmed by good linearity of AuNPs-PABA-Cr(III) respect with Difference Intensity of Red Color Component, wider dynamic range, and Lower Limit of Detection (LoD).
{"title":"Preliminary Research on the Analysis of Chromium(III) Based on Digital Image Processing Method Utilizing Gold Nanoparticles as Colorimetric Sensor","authors":"Pratyangga Surya Dyaninggar, S. J. Santosa, B. Rusdiarso","doi":"10.4028/p-t3ga7q","DOIUrl":"https://doi.org/10.4028/p-t3ga7q","url":null,"abstract":"Gold nanoparticles (AuNPs) have been successfully synthesized using L-Ascorbic Acid as a reducing agent and p-Aminobenzoic Acid as a capping agent. These AuNPs were used to detect and quantify Chromium(III) as a pollutant utilizing its unique characteristic called surface plasmon resonance (SPR). The change of SPR and color of AuNPs then was employed to determine the concentration of Cr(III) by using colorimetric and Digital Image Colorimetric methods. Digital Image Colorimetry allowed to development of an easier and cheaper way to detect and quantify Cr(III). AuNPs capped p-aminobenzoic acid (AuNPs-PABA) were synthesized at room temperature without using any heating method. Then synthesized AuNPs-PABA were characterized using UV-Visible spectrometer and Transmission Electron Microscope. This AuNPs-PABA then got contacted to Cr(III) and color-changing happened in AuNPs-PABA was analyzed using UV-Vis Spectrometer and captured for Digital Image Colorimetric. The result showed that Digital Image Colorimetric method has a very big potential to be developed for AuNPs-based detection and quantification of Cr(III) as confirmed by good linearity of AuNPs-PABA-Cr(III) respect with Difference Intensity of Red Color Component, wider dynamic range, and Lower Limit of Detection (LoD).","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"18 1","pages":"15 - 22"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88519130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The oxygen functional group limits the performance of graphene oxide (GO). By raising the Carbon/Oxygen (C/O) ratio, reducing the oxygen functional group may enhance thermal stability. The effects of the (C/O) ratio of graphene derivatives on the structure-properties relationship in metallocene linear low-density polyethylene (PE), homo polypropylene (PP), and blends thereof were investigated in this research. Using reduced graphene oxide (rGO) and pristine graphene (G), the oxygen functional groups were reduced. The effect of raising the C/O ratio of GO, rGO, and G blending with PE and PP synthesized by solution blending is discussed. Solvent processing was used to synthesise these nanocomposites, with dimethylformamide) DMF (and o-xylene served as the solvents for graphene flakes and polymers, respectively, before the two components were combined to form a well-mixed initial state. Wide-angle X-ray diffraction was used to investigate the crystallisation of the nanocomposites (WAXD). X-ray photoelectron spectroscopy (XPS), ultraviolet visible spectroscopy (UVVS), and Raman spectroscopy were used to characterise the chemical structures, with the latter being used to calculate the intensity ratio of D and G band (ID/IG) value for pure graphene specimens. The C/O ratio was calculated as , 4.9 and 2.2 for the G, rGO and GO respectively. While the (ID/IG (increased with increasing the C/O ratio, the ID/IG values were calculated as 0.285, 1.137 and 1.726 for pure GO, rGO and G samples. Differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) were used to determine the melting temperature ( ), crystallization temperature ( ) as well as a range of degradation temperatures.
{"title":"The Effect of Carbon/Oxygen Ratio upon Structure-Property Relationships in Polymer/Graphene Nanocomposites","authors":"H. Aldosari","doi":"10.4028/p-72519w","DOIUrl":"https://doi.org/10.4028/p-72519w","url":null,"abstract":"The oxygen functional group limits the performance of graphene oxide (GO). By raising the Carbon/Oxygen (C/O) ratio, reducing the oxygen functional group may enhance thermal stability. The effects of the (C/O) ratio of graphene derivatives on the structure-properties relationship in metallocene linear low-density polyethylene (PE), homo polypropylene (PP), and blends thereof were investigated in this research. Using reduced graphene oxide (rGO) and pristine graphene (G), the oxygen functional groups were reduced. The effect of raising the C/O ratio of GO, rGO, and G blending with PE and PP synthesized by solution blending is discussed. Solvent processing was used to synthesise these nanocomposites, with dimethylformamide) DMF (and o-xylene served as the solvents for graphene flakes and polymers, respectively, before the two components were combined to form a well-mixed initial state. Wide-angle X-ray diffraction was used to investigate the crystallisation of the nanocomposites (WAXD). X-ray photoelectron spectroscopy (XPS), ultraviolet visible spectroscopy (UVVS), and Raman spectroscopy were used to characterise the chemical structures, with the latter being used to calculate the intensity ratio of D and G band (ID/IG) value for pure graphene specimens. The C/O ratio was calculated as , 4.9 and 2.2 for the G, rGO and GO respectively. While the (ID/IG (increased with increasing the C/O ratio, the ID/IG values were calculated as 0.285, 1.137 and 1.726 for pure GO, rGO and G samples. Differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) were used to determine the melting temperature ( ), crystallization temperature ( ) as well as a range of degradation temperatures.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"23 1","pages":"59 - 78"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78638359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ni’matil Mabarroh, Taufikuddin Alfansuri, N. Istiqomah, Rivaldo Marsel Tumbelaka, E. Suharyadi
The giant magnetoresistance (GMR) thin film with spin valve (SV) structure of Ta (2 nm)/Ir20Mn80(10 nm)/Co90Fe10(3 nm)/Cu (2.2 nm)/Co84Fe10B4(10 nm)/Ta (5 nm)] fabricated by RF magnetron sputtering method with a magnetoresistance (MR) of 6% was used in this work. Green synthesis of Fe3O4 magnetic nanoparticles (MNPs) using Moringa Oleifera (MO) leaf extract have been successfully conducted using the coprecipitation method. Fe3O4 MNPs demonstrated the inverse cubic spinel structure with the average crystallite size of 13.8 nm and decreased to 11.8 nm for Fe3O4/PEG. Fe3O4, as a magnetic label, integrated with a Wheatstone bridge-GMR sensor provides access to GMR-based biosensors. The induced-field increase leads the signal (ΔV) to increase with increasing nanoparticle concentration. It was discovered that a sensor can distinguish different types of magnetic labels. The sensitivity for Fe3O4 and MO-green synthesized Fe3O4 magnetic label was 0.04 and 0.1 mV/g/L, respectively. The GMR sensor performed the highest sensitivity on the MO-green synthesized Fe3O4 label. Thus, the SV thin film as a sensor and the green-synthesized Fe3O4 nanoparticles as a superior magnetic label are an excellent combination for biosensor application.
{"title":"GMR Biosensor Based on Spin-Valve Thin Films for Green-Synthesized Magnetite (Fe3O4) Nanoparticles Label Detection","authors":"Ni’matil Mabarroh, Taufikuddin Alfansuri, N. Istiqomah, Rivaldo Marsel Tumbelaka, E. Suharyadi","doi":"10.4028/p-v5gmkk","DOIUrl":"https://doi.org/10.4028/p-v5gmkk","url":null,"abstract":"The giant magnetoresistance (GMR) thin film with spin valve (SV) structure of Ta (2 nm)/Ir20Mn80(10 nm)/Co90Fe10(3 nm)/Cu (2.2 nm)/Co84Fe10B4(10 nm)/Ta (5 nm)] fabricated by RF magnetron sputtering method with a magnetoresistance (MR) of 6% was used in this work. Green synthesis of Fe3O4 magnetic nanoparticles (MNPs) using Moringa Oleifera (MO) leaf extract have been successfully conducted using the coprecipitation method. Fe3O4 MNPs demonstrated the inverse cubic spinel structure with the average crystallite size of 13.8 nm and decreased to 11.8 nm for Fe3O4/PEG. Fe3O4, as a magnetic label, integrated with a Wheatstone bridge-GMR sensor provides access to GMR-based biosensors. The induced-field increase leads the signal (ΔV) to increase with increasing nanoparticle concentration. It was discovered that a sensor can distinguish different types of magnetic labels. The sensitivity for Fe3O4 and MO-green synthesized Fe3O4 magnetic label was 0.04 and 0.1 mV/g/L, respectively. The GMR sensor performed the highest sensitivity on the MO-green synthesized Fe3O4 label. Thus, the SV thin film as a sensor and the green-synthesized Fe3O4 nanoparticles as a superior magnetic label are an excellent combination for biosensor application.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"49 1","pages":"9 - 14"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84075931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flexible and transparent devices are expected to meet increasing consumer demands for upgrades in wearable devices, smart electronic and photonic applications. In this work, nano-manufacturing of a flexible and powerless silicon carbide nanowire network ultraviolet photodetector (SiCNW-network UVPD) prototype was investigated by a very cost-effective direct transfer method. Indeed, the powerless device exhibited a photo-to-dark current ratio (PDCR) of 15 with a responsivity of 5.92 mA/W at 254 nm wavelength exposure. The reliability and durability of the device was evaluated by bending tests. In fact, the PDCR of the device was still very good even after seventy-five bending cycles (~ 96 % of the rest state). In brief, our flexible, powerless SiCNW-network UVPD device with cost-effectiveness, good performance, and durability can provide feasible alternatives for new generation wearable optoelectronic products.
{"title":"Direct Transfer Manufacturing of Flexible Silicon Carbide Nanowire-Network Prototype Device","authors":"M. S. Onder, K. Teker","doi":"10.4028/p-d0o9il","DOIUrl":"https://doi.org/10.4028/p-d0o9il","url":null,"abstract":"Flexible and transparent devices are expected to meet increasing consumer demands for upgrades in wearable devices, smart electronic and photonic applications. In this work, nano-manufacturing of a flexible and powerless silicon carbide nanowire network ultraviolet photodetector (SiCNW-network UVPD) prototype was investigated by a very cost-effective direct transfer method. Indeed, the powerless device exhibited a photo-to-dark current ratio (PDCR) of 15 with a responsivity of 5.92 mA/W at 254 nm wavelength exposure. The reliability and durability of the device was evaluated by bending tests. In fact, the PDCR of the device was still very good even after seventy-five bending cycles (~ 96 % of the rest state). In brief, our flexible, powerless SiCNW-network UVPD device with cost-effectiveness, good performance, and durability can provide feasible alternatives for new generation wearable optoelectronic products.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"8 1","pages":"49 - 58"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88359880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Renewable energy source is a clean energy production source and can overcome climatic challenges caused by the excessive use of fossil fuels. The nanocrystalline material of composition Cu0.2Fe0.2(Ce0.6Gd0.4-xNdx)0.6O2-x has been synthesized by WOWS sol-gel process by varying Neodymium as such x= 0.0, 0.05. These samples were calcined at 500°C for 2 hours and the pellets were sintered at 750°C for 5 hours. X-Ray Diffraction technique confirms the cubic fluorite structure of the material. The doped material has showed high dielectric constant value and low dissipation factor and increased AC conductivity. AC conductivity obeys the Universal Dielectric Response. The material shows the potential for applications such as an electrode/electrolyte for fuel cells or also as a dielectric resonator.
{"title":"Study of Structural and Electrical Properties of CuFe-CGN for Renewable Energy Applications","authors":"Amna Siddique, M. Anis-Ur-Rehman","doi":"10.4028/p-co85a8","DOIUrl":"https://doi.org/10.4028/p-co85a8","url":null,"abstract":"Renewable energy source is a clean energy production source and can overcome climatic challenges caused by the excessive use of fossil fuels. The nanocrystalline material of composition Cu0.2Fe0.2(Ce0.6Gd0.4-xNdx)0.6O2-x has been synthesized by WOWS sol-gel process by varying Neodymium as such x= 0.0, 0.05. These samples were calcined at 500°C for 2 hours and the pellets were sintered at 750°C for 5 hours. X-Ray Diffraction technique confirms the cubic fluorite structure of the material. The doped material has showed high dielectric constant value and low dissipation factor and increased AC conductivity. AC conductivity obeys the Universal Dielectric Response. The material shows the potential for applications such as an electrode/electrolyte for fuel cells or also as a dielectric resonator.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"1 1","pages":"33 - 39"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89149218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, strain measurement can be analyzed in sub-10nm SiGe layer (~7 nm) grown on [100] Si substrate by chemical vapor deposition at the nanoscale level. The measurement technique is based on transmission electron microscopy (TEM), in which high-resolution transmission electron microscopy (HRTEM) image is combined with the image processing of geometric phase analysis (GPA) software. In this case, GPA analyzes the HRTEM images formed at the [011] zone axis to obtain information about strain maps along the [100] growth direction of the nanoscale SiGe region. The strain analyzed in the SiGe layer is within 1.6-2.9% with high precision and high spatial resolution.
{"title":"2D Strain Mapping in Sub-10nm SiGe Layer with High-Resolution Transmission Electron Microscopy and Geometric Phase Analysis","authors":"Vandang Hoang, Van Trung Trinh","doi":"10.4028/p-0xgppz","DOIUrl":"https://doi.org/10.4028/p-0xgppz","url":null,"abstract":"In this study, strain measurement can be analyzed in sub-10nm SiGe layer (~7 nm) grown on [100] Si substrate by chemical vapor deposition at the nanoscale level. The measurement technique is based on transmission electron microscopy (TEM), in which high-resolution transmission electron microscopy (HRTEM) image is combined with the image processing of geometric phase analysis (GPA) software. In this case, GPA analyzes the HRTEM images formed at the [011] zone axis to obtain information about strain maps along the [100] growth direction of the nanoscale SiGe region. The strain analyzed in the SiGe layer is within 1.6-2.9% with high precision and high spatial resolution.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"32 1","pages":"41 - 47"},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76782514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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