Abstract Polyaniline (PANI) semiconductor polymer and cadmium sulfide nanoparticles (CdS NPs) was prepared by chemical oxidation method sol-gel respectively. (10-40) wt% content of CdS NPs added polyaniline conductive powder to PANI-CdS nanocomposites. The Fourier transform infrared analysis FT-IR spectra the samples revealed that effective groups peak locations referred confirming bond are wel...

Under microwave radiation, Ag(+)-doped CdS semiconductor nanocrystals with high photoluminescence quantum yield (approximately 58%) and a surprisingly large optical window (480 to 630 nm) are formed controllably using a center-doping strategy and are optimized through a green approach in pure water solution.

We report the synthesis and characterization of axial nanorod heterostructures composed of cadmium selenide (CdSe) and cadmium sulfide (CdS). The synthesis employs a solution-liquid-solid (SLS) mechanism with the assistance of bismuth nanocrystals adhered to a substrate (silicon or a III-V semiconductor). Transmission electron microscopy (TEM) and diffraction studies show that CdSe and CdS segm...

Abstract Ternary compounds such as Cu2GeS3(CGS) and Cu2SnS3(CTS) semiconductor materials have been considered lower defects environmentally friendly absorber layer for solar cells. In this work, the band offsets CGS/CdS CTS/CdS heterointerface are calculated by first-principles calculation method. The valence maximum (VBM) of CdS is below CGS (valence offset Δ E V =1.4 eV), conduction minimum (...

Semiconductor nanoparticles (NPs) are being actively explored for applications in medical diagnostics and therapy and numerous electronic devices including solar cells. In this paper we demonstrate the influence of the third generation rigid polyphenylenepyridyl dendrimers (PPPDs) of a different architecture on the formation of well-defined CdS NPs. A high temperature approach to the synthesis ...

The heterogeneous integration of GaAs HEMTs on a polyimide-covered AlN ceramic substrate was demonstrated using a fluidic self-assembly (FSA) technique. We used thin device blocks for the FSA, which have various advantages. In particular, they can reduce the drain-source capacitance Cds of the assembled HEMTs if the substrate has a low dielectric constant. This is a novel kind of semiconductor-...

A series of hybrid cadmium salt/cationic surfactant layered nanocomposites containing different concentrations of cadmium sulphide was prepared by exchanging chloride by sulphide ions in the layered precursor CdXx(OH)y(CnTA)z in a solid phase/gas reaction, resulting in a series of layered species exhibiting stoichiometries corresponding to CdSvXx(OH)y(CnTA)z, constituted by two-dimensional CdCl...

In this paper two unified, scalable and transportable parallel approaches to the numerical simulation of semiconductor devices are presented: Concurrent Device Simulation (CDS), and Spatial Device Decomposition (SDD). Both approaches have been developed and tested on the Parsytec Supercluster Model 64 which is a medium size transputer system. A series of examples illustrate the application of t...

BACKGROUND Semiconductor Quantum dots (QDs) have become quite popular thanks to their properties and wide use in biological and biomedical studies. However, these same properties entail new challenges in understanding, predicting, and managing potential adverse health effects following exposure. Cadmium and selenium, which are the major components of the majority of quantum dots, are known to b...