Papers – Page 72 – TechConnect Briefs

The study of anti-reflection coatings doped with Ag nanoparticles utilized in solar cells

Zhan S., Zhang Q., Fan X.H.J., Zhang Q., Ji R., Wang Y., Miao T., Sun Q., Sun X., Hao Y., Sun Q., Sun X., Northwest University, CN

As solar energy is a renewable,clean energy sources,it has been focused rearchers attention for a long time.In this study ,We expect to enhance the transimittance of anti-reflection(AR) films which are used in solar cells.First,The Ag [...]

Ti-based nanocrystallites formation by high-energy milling

Kwon H., Jung S., Cho S.W., Kil D.S., Kim J., Roh K.M., Lim J.W., Korea Institute of Geoscience and Mineral Resources, KR

There are many researches for the solid-solution to prepare the materials with the properties which pure materials do not have. However, basically, it was difficult to synthesize the solid-solution phase because of high activation energy [...]

Enhancement of Ferromagnetism in Amine/Organic Acid Capped Au-Nanoparticles by Yttrium-Oxide Inclusion

Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Urbano R.R., Rettori C., Rettori D., Universidade Estadual de Campinas (UNICAMP), BR

In this work we report on the enhancement of the ferromagnetism of amine/organic acid capped Au nanoparticles (AuNPs) by incorporation of yttrium-oxide (Y2O3). The magnetization measurements displayed a ferromagnetic (FM) loop with a coercive field [...]

Magnetic properties of metallic AuPdO nanoparticles confined in ordered mesoporous silica SBA-15 channels

Iwamoto W., Lesseux G.G., Dias B.F., Teixeira-Neto A.A., Teixeira-Neto E., Teixeira-Neto A.A., Teixeira-Neto E., Urbano R.R., Rettori C., Universidade Estadual de Campinas (UNICAMP), BR

Materials consisting of metallic AuPdO nanoparticles (AuPdO-NPs) supported on mesoporous silica SBA-15 channels (AuPdO-NPs/SBA15, Figure 1) have become composite compounds of great interest due to their catalytic applications [1]. In this work we report on [...]

Influence of Nanoclay’s Incorporation On Mechanical and Thermogravimetric Properties of ER/MWCNT Composites

Stimoniaris A.Z., Zois H., Kanapitsas A., Delides C.G., Technological Educational Institute Of Lamia, GR

In this work polymer nanocomposite systems based on epoxy resin (ER), reinforced with amine-modified multi-walled carbon nanotubes (MWCNTs) and/or nanoclays were studied. Thermogravimetric/Differential Thermal Analysis (TGA/DTA) and Dynamic Mechanical Analysis (DMA) techniques were carried out. [...]

Photon up-conversion and magnetic properties of rare earths-doped NaYF4 nanoparticles

García-Flores A.F., Lesseux G.G., Iwamoto W., Urbano R.R., Rettori C., Universidade Federal do ABC, BR

In this work we have investigated Yb/Er and Yb/Tm co-doped NaYF4 nanoparticles (NPs) as well as Yb and Er single doped ones by means of luminescence, high resolution transmission electron microscopy (HRTEM), X-ray powder diffraction [...]

Polarization insensitive and wide-angle plasmonically induced transparency by planar metamaterial

Chen S., Cheng H., Duan X., Yang H., Cheng H., Li J., Liu W., Liu W., Gu C., Tian J., Nankai University, CN

We present the design, characterization and experimental demonstration of a polarization insensitive and wide-angle plasmonically induced transparency (PIT) planar metamaterial (MM) in the near infrared regime. A four-level plasmonic model is proposed to explain and [...]

Synthesis of hollow silica particles with tunables ize,shell thickness,and morphology

Kim J., Lee J., Chang H., Choi J.W., Jang H-D, Kim J., Korea Institute of Geoscience and Mineral Resources, KR

Here, we provide simple methods to modify the particle size, shell thickness, and the morphology of hollow silica particles (HSPs). To synthesize the HSPs, we adopted polystyrene (PS) particles as a sacrificial template. Size tune [...]

An emerging method for the separation and characterisation of manufactured nanoparticles in complex environmental samples

Chekli L., Phuntsho S., Kandasamy J., Shon H., University of Technology Sydney, AU

Manufactured nanoparticles (MNPs) are increasingly released to the environment. In spite of this growth, information about the fate and toxicity of nanoparticles in the environment is limited, partly due to the lack of techniques capable [...]

Health Monitoring of Carbon/Carbon Composites Monitored by Ultrasonic TOF Technique

Won S., Korea Institute of Materials Science, KR

Carbon/carbon (C/C) composites reinforced with carbon nanotube are tested for their application to primary aircraft structures using ultrasonic testing. Ultrasonic testing is the most widely used and most powerful procedure for inspecting composites. Composites are [...]