The synthesis of a composite material based on graphitic carbon nitride by pyrolytic decomposition at 550 °C mechanical mixture thiourea with the addition aluminum powder in amount 5–30 wt.% has been studied. According to scanning results means electron microscopy, energy dispersive X-ray spectroscopy, and diffractometry synthesized consists nitride, sulfide, residual metallic hydroxide. excess...

Au nanocluster and PEDOT: PSS blend in the electricalPerformance of Hybrid silicon solar cell. Report Title Poly( 3,4-ethyllenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS), a P-type organic polymer is frequently employed in the fabrication of heterojuction p-n solar cell devices due to its proper HOMO-LUMO band gap as well as its tunable conductivity. Addition of small volume percentage...

A gas-phase, room-temperature, plasmaless isotropic etching system has been used for bulk and thin lm silicon etching. A computer controlled multi-chambered etcher is used to provide precisely metered pulses of xenon di uoride (XeF2) gas to the etch chamber. Etch rates as high as 15 microns per minute have been observed. The etch appears to have in nite selectivity to many common thin lms, incl...

It was shown that elastic waves propagating out-of-plane in a two-dimensional phononic crystal can experience full-band-gaps for nonzero values of the wave-vector component parallel to the rods. By further inserting a rod defect, it is demonstrated that modes propagating along the rod defect can be localized within the band-gaps of the phononic crystal. Such waveguide modes are exhibited for a ...

A simple and versatile approach was developed to generate hierarchical assemblies of ultra-small gold nanocluster thin films using the combination of galvanic reaction and a block copolymer coordinated with gold complex. Variation of the temperature allows effective control over the optical response of these stimuli-responsive organic-nanocluster hybrid structures.

The lifetime of Er3+ in silicon-rich silicon oxide has been reported with quite widely varying values ranging from 9 ms to 2 ms. In this work, we consider the direct impact of silicon nanoclusters on the erbium radiative lifetime, and show that it is a function of the silicon nanocluster size, and also the erbium proximity to the nanocluster.

In this work, visible electroluminescence (EL) from aluminum nitride (AlN) thin film containing aluminum nanocrystals (nc-Al) prepared by a radio frequency sputtering technique is reported. The yellow EL shows a spectrum peaked at 565 nm. A linear relationship between the EL and the current transport in the nc-Al/AlN nanocomposite thin film is observed, and both the current transport and the EL...