Perng T.P. – TechConnect Briefs

Visible Light Emission from Si-related Nanostructures and the Effect of Ambient Atmosphere on Photoluminescence

Tsai M.-Y., Chi C.-C., Perng T.P., National Tsing Hua University, TW

Two different types of visible light emission were observed from the Si-related nanostructures prepared by vapor condensation in an Ar-5%O2 atmosphere at various working pressures (1, 30, 50, and 100 torr). The specimen prepared at [...]

Field Emission of Nanostructured AlQ3 Amorphous Film and the Heat Treatment Effect

Cho C-P, Perng T.P., National Tsing Hua University, TW

There has been a particular interest in tris-(8-hydroxyquinoline) aluminum (AlQ3)-based devices for the development of large-area displays due to the unique properties such as excellent flexibility, high photoconductivity, and nonlinear optical behavior. It is then [...]

Desorption of Surfactant and Sintering of Surface Modified PdxNi1-x Nanoparticles

Wang K-W, Chung S-R, Hung W-H, Perng T.P., National Tsing Hua University, TW

A series of PdxNi1-x nanoparticles in a diameter of 10 nm were prepared by wet chemical reduction. The surface was modified with 1 wt% stearic acid (SA) or polyethylene glycol (PEG). Desorption of the surfactant [...]

Electrochemical Storage of Hydrogen in Carbon Nanotubes

Chung S-R, Wang K-W, Perng T.P., National Tsing Hua University, TW

The electrochemical hydrogenation property of carbon nanotubes (CNTs) was investigated. A slurry consisting of CNTs and a binder was pasted on a Ni foam to form an electrode. The discharge capacity was tested in an [...]

Compositional Inhomogeneity of Pd70Ag30 Alloy Nanoparticles

Wang K-W, Chung S-R, Jang L-Y, Lee J-F, Perng T.P., National Tsing Hua University, TW

The compositional inhomogeneity of Pd70Ag30 nanoparticles with the size of 6-7nm was studied by X-ray absorption near edge structure (XANES). The composition of the as-prepared nanoparticles by chemical reduction is inhomogeneous across the diameter due [...]