For the design of electronic devices with larger integration, lower power, and higher speed, the novel nano-electronic devices should be suggested. Therefore, there is a need for the journal to focus on nanoelectronic devices exclusively. Overall nanotechnology sciences are known as a new and modern subject in the current century, hence have high topicality.
The journal articles will be accessed freely online. It covers all fields of sciences as listed below:
A tissue equivalent nanocomposite based on polyamide6 and polyethylene filled with different parts of CNT (1-4%) was prepared. Electrical conductivity measurements showed that by adding only 3% CNT to PA6/PE blend, itreaches to percolation threshold. The electrical conductivity of the nanocomposite with 3% CNT reaches to 3 × 10^6 S/cm which is in the range of semi-conductive materials. SEM studies of conductive PA6/PE/CNT nanocomposite showed two distinct, co-continuous morphologies for PA and PE phases. TEM observation confirmed the co-continuous morphology for PA6/PE/CNT nanocomposite and selective localization of CNTs in PA phase and at the interface of two phases. Due to high aspect ratio of CNTs, they are in contact with each other inside the continuous PA phase and formed a conductive network which could provide electrical properties in nanocomposite. Consequently, low percolation threshold of PA6/PE/CNT nanocomposite is resulted from formation of double percolation structure in co-continuous phases of PE and PA and in CNT networks in PA phase of nanocomposite.
The presence of Arsenic in aquatic environments is one of the biggest and most important human concerns that can cause skin, kidney, lung and lung cancer. Arsenic is dissolved through human activities and natural processes and the washing of rocks in groundwater. Deposition techniques, sedimentation and ion exchange, membrane filtration and surface absorption have been used to remove arsenic from aqueous environments, among which adsorption is a method with economical efficiency for water purification. In this study, the removal of arsenic from aqueous humorous media was carried out using SBA-15 operating hybrid agent nano-adsorbents. SBA-15 adsorbents were synthesized and functional during the process. The nano-adsorption structure and the presence of functional groups were confirmed by a Fourier transform infrared spectrometer and a scanning electron microscope image. Effective factors such as adsorbent type, optimum absorbent amount, contact time and optimum pH were analyzed and analyzed. The results showed that the maximum amount of arsenic removal after 5 minutes was possible using 0.3 g of amine SBA-15 nano-adsorbent at an optimum pH of 7, and it was also found that the adsorption process was followed by the Langmuir and Frendlich temperature equilibrium model.
In recent years, the noble metal nanoparticles have attracted a lot of attention due to their unique structural, optical, electronic and catalytic properties. According to these features, they are used in technology as sensors, nanoelectronic devices, and biosensors. Among the various measuring techniques using the biological sensors, the use of resonant superficial surface plasmon has high reliability and efficiency. In this paper, an imaging method using nanoscale spheres, which is inexpensive, inherently parallel and high-effective, is used to construct this type of sensor. With this technique, we created a coherent and periodic array of circular gold nanoparticles that have a high absorption peak compared to the other noble metals on a glass bed. We used 600nm polystyrene to form a layer of nano-sized spheres. To make a mask of the spheres, a self-organizing device was used with nanoscale spheres creating a single coherent layer. To enhance the quality of these biosensors, various parameters related to the polystyrene layer, such as the speed of the blade of the convective self-organizing device, as well as the volume of polystyrene and its diluent, were investigated.
The electronic and conductivity properties of hollow carbon nanospheres (HCNSs) were investigated in this work via scanning tunnelling microscopy (STM) and scanning tunnelling spectroscopy (STS) technique. Study and estimation of the Quantum behaviour and differential conductance (dI/dV) measurements of HCNSs was the most important task. The hollow carbon nanospheres used herein are synthesized by chemical vapour deposition (CVD) method from HgO/C nanocomposite with core-shell structures. the local currents images on the surface of HCNSs was recorded by STM and to measure the differential conductance by STS technique, Perform a current-voltage sweep (I-V curve) and take the mathematical derivative was used. The Differential conductance measurements of the synthesized hollow carbon nanospheres from CVD method was carried out using an improved method. The HCNSs I-V curve follows from the quantum behaviour and it was observed that the HCNSs has a good conductivity for many applications such as electronic devices and electrode materials.
Based on the density functional theory (DFT) and using the two types of exchange and correlation (XC) potentials, the Perdew-Burke-Ernzerhof (PBE) functional form and the Engel–Vosko scheme of the generalized gradient approximation (GGA), the electronic and optical properties of the bulk and mono-layer Tungsten sulphoselenide WSxSe2-x (0< x < 2) are calculated. In both bulk and mono-layer cases, the energy gap decreases by increasing the density of the Se atom, so that the reduction in the mono-layer case is more observable than the bulk case. The static dielectric function of WS2 in the e1(w) as well as its optical conductivity is less than the other two compounds. In the mono-layer case along x direction, the first response to the incident photon belongs to WS2 in the infrared region, while the other two compounds respond in the edge of the visible area. The intensity of the WSSe response, unlike its bulk case, is less than the other compounds. Along z direction, the first response is observed in the visible area. The remarkable point is that the optical stability in the bulk case is more than that in the mono-layer case.
In this research, the TiO2 blocking layer of perovskite solar cells was made by two different methods, spincoating and spray pyrolysis. Optical properties of active layers were studied using diffused transmittance spectroscopy (DTS), and the photovoltaic properties of the solar cells such as Jsc , Voc , FF and the efficiency were measured. Due to the importance of transmission, the light from the blocking layer and the mesoporous TiO2 layer, the diffuse spectrum of these layers and also the importance of light absorption in the perovskite of the absorption spectra of this layer were investigated. Diffuse transmittance spectroscopy (DTS) was used to study the active layer from the view point of optics. Optical properties of the spin coating layer were not significantly different in the two methods, but after the deposited perovskite layer, it was observed that the optical properties of the perovskite layer in the range of visible light were different in both the spin coating and spray pyrolysis methods.
Journal Owner: Ashkan Horri
Editor in Chief: Ashkan Horri
For the design of electronic devices with larger integration, lower power, and higher speed, the novel nano-electronic devices should be suggested. Therefore, there is a need for the journal to focus on nanoelectronic devices exclusively. Overall nanotechnology sciences are known as a new and modern subject in the current century, hence have high topicality.
The journal articles will be accessed freely online. It covers all fields of sciences as listed below:
Nano-Electronics - Quantum-Electronic - Mesoscopic-physics - Molecular-Electronic - Nano-Materials - Bio-Nanoelectronic
A tissue equivalent nanocomposite based on polyamide6 and polyethylene filled with different parts of CNT (1-4%) was prepared. Electrical conductivity measurements showed that by adding only 3% CNT to PA6/PE blend, itreaches to percolation threshold. The electrical conductivity of the nanocomposite with 3% CNT reaches to 3 × 10^6 S/cm which is in the range of semi-conductive materials. SEM studies of conductive PA6/PE/CNT nanocomposite showed two distinct, co-continuous morphologies for PA and PE phases. TEM observation confirmed the co-continuous morphology for PA6/PE/CNT nanocomposite and selective localization of CNTs in PA phase and at the interface of two phases. Due to high aspect ratio of CNTs, they are in contact with each other inside the continuous PA phase and formed a conductive network which could provide electrical properties in nanocomposite. Consequently, low percolation threshold of PA6/PE/CNT nanocomposite is resulted from formation of double percolation structure in co-continuous phases of PE and PA and in CNT networks in PA phase of nanocomposite.
The presence of Arsenic in aquatic environments is one of the biggest and most important human concerns that can cause skin, kidney, lung and lung cancer. Arsenic is dissolved through human activities and natural processes and the washing of rocks in groundwater. Deposition techniques, sedimentation and ion exchange, membrane filtration and surface absorption have been used to remove arsenic from aqueous environments, among which adsorption is a method with economical efficiency for water purification. In this study, the removal of arsenic from aqueous humorous media was carried out using SBA-15 operating hybrid agent nano-adsorbents. SBA-15 adsorbents were synthesized and functional during the process. The nano-adsorption structure and the presence of functional groups were confirmed by a Fourier transform infrared spectrometer and a scanning electron microscope image. Effective factors such as adsorbent type, optimum absorbent amount, contact time and optimum pH were analyzed and analyzed. The results showed that the maximum amount of arsenic removal after 5 minutes was possible using 0.3 g of amine SBA-15 nano-adsorbent at an optimum pH of 7, and it was also found that the adsorption process was followed by the Langmuir and Frendlich temperature equilibrium model.
In recent years, the noble metal nanoparticles have attracted a lot of attention due to their unique structural, optical, electronic and catalytic properties. According to these features, they are used in technology as sensors, nanoelectronic devices, and biosensors. Among the various measuring techniques using the biological sensors, the use of resonant superficial surface plasmon has high reliability and efficiency. In this paper, an imaging method using nanoscale spheres, which is inexpensive, inherently parallel and high-effective, is used to construct this type of sensor. With this technique, we created a coherent and periodic array of circular gold nanoparticles that have a high absorption peak compared to the other noble metals on a glass bed. We used 600nm polystyrene to form a layer of nano-sized spheres. To make a mask of the spheres, a self-organizing device was used with nanoscale spheres creating a single coherent layer. To enhance the quality of these biosensors, various parameters related to the polystyrene layer, such as the speed of the blade of the convective self-organizing device, as well as the volume of polystyrene and its diluent, were investigated.
The electronic and conductivity properties of hollow carbon nanospheres (HCNSs) were investigated in this work via scanning tunnelling microscopy (STM) and scanning tunnelling spectroscopy (STS) technique. Study and estimation of the Quantum behaviour and differential conductance (dI/dV) measurements of HCNSs was the most important task. The hollow carbon nanospheres used herein are synthesized by chemical vapour deposition (CVD) method from HgO/C nanocomposite with core-shell structures. the local currents images on the surface of HCNSs was recorded by STM and to measure the differential conductance by STS technique, Perform a current-voltage sweep (I-V curve) and take the mathematical derivative was used. The Differential conductance measurements of the synthesized hollow carbon nanospheres from CVD method was carried out using an improved method. The HCNSs I-V curve follows from the quantum behaviour and it was observed that the HCNSs has a good conductivity for many applications such as electronic devices and electrode materials.
Based on the density functional theory (DFT) and using the two types of exchange and correlation (XC) potentials, the Perdew-Burke-Ernzerhof (PBE) functional form and the Engel–Vosko scheme of the generalized gradient approximation (GGA), the electronic and optical properties of the bulk and mono-layer Tungsten sulphoselenide WSxSe2-x (0< x < 2) are calculated. In both bulk and mono-layer cases, the energy gap decreases by increasing the density of the Se atom, so that the reduction in the mono-layer case is more observable than the bulk case. The static dielectric function of WS2 in the e1(w) as well as its optical conductivity is less than the other two compounds. In the mono-layer case along x direction, the first response to the incident photon belongs to WS2 in the infrared region, while the other two compounds respond in the edge of the visible area. The intensity of the WSSe response, unlike its bulk case, is less than the other compounds. Along z direction, the first response is observed in the visible area. The remarkable point is that the optical stability in the bulk case is more than that in the mono-layer case.
In this research, the TiO2 blocking layer of perovskite solar cells was made by two different methods, spincoating and spray pyrolysis. Optical properties of active layers were studied using diffused transmittance spectroscopy (DTS), and the photovoltaic properties of the solar cells such as Jsc , Voc , FF and the efficiency were measured. Due to the importance of transmission, the light from the blocking layer and the mesoporous TiO2 layer, the diffuse spectrum of these layers and also the importance of light absorption in the perovskite of the absorption spectra of this layer were investigated. Diffuse transmittance spectroscopy (DTS) was used to study the active layer from the view point of optics. Optical properties of the spin coating layer were not significantly different in the two methods, but after the deposited perovskite layer, it was observed that the optical properties of the perovskite layer in the range of visible light were different in both the spin coating and spray pyrolysis methods.