We synthesize colloidal CdSe@CdS octapod nanocrystals decorated with Pt domains, resulting in a metal-semiconductor heterostructure. We devise a protocol to control the growth of Pt on the CdS surface, realizing both a selective tipping and a non-selective coverage. Ultrafast optical spectroscopy, particularly femtosecond transient absorption, is employed to correlate the dynamics of optical ex...

In this work, we present the synthesis and characterization of CdS nanoparticles suitable for semiconductor applications using a simple and manufacturable process. The solution based process was synthetized at room temperature using cadmium nitrate tetrahydrate (Cd (NO3)2 .4 H2O 0.1 M) and a Thioacetamide (C2H5NS (TA) 0.5 M) as source of cadmium and sulfur, respectively. The effect of the conce...

Solid solutions of CdS and CdSe of different compositions were prepared by s inter ing pressed pellets and vacuum evaporation. The bandgap of the mixtures varied monotonical ly with percent composition be tween that of CdS and CdSe. Studies of the photoassisted oxidation of sulfide with these electrodes wi th a 1M Na2S, 0.1M NaOH electrolyte showed that the flatband potentials (Vfb) of the mixt...

The article presents materials of the review international and domestic scientific papers devoted to technology synthesis research properties nanosized particles based on semiconductor material CdS, cadmium sulfide stabilized by biocompatible amino acid L-cysteine. mainly focuses results that reflect different methods nanoparticles materials, main stages their formation maturation, dependence s...

Semiconductor photocatalysis has been intensively studied in recent decades for a wide variety of application such as hydrogen production from water splitting and water and air treatment. The majority of photocatalysts are, however, wide band-gap semiconductors which are active only under UV irradiation. In order to effectively utilize visible solar radiation, this thesis investigates various t...

Photoelectrochemical (PEC) water splitting is a promising route for solar energy harvesting and storage, but it has been highly limited by the performance of the semiconductor photoelectrodes. Herein, we report a small molecular amine-mediated solvothermal method for synthesizing CdS nanorods. The obtained CdS nanorods are hydrophilic and can be easily dispersed in water. Furthermore, the small...

Solution-processed CdTe nanocrystals solar cells have attracted much attention due to their low cost, low material consumption, and potential for roll-to-roll production. Among all kinds of semiconductor materials, CdS exhibits the lowest lattice mismatch with CdTe, which permits high junction quality and high device performance. In this study, high quality CdS nanocrystals were prepared by a n...

Understanding the optical gain and mode-selection mechanisms in semiconductor nanowire (NW) lasers is key to the development of high-performance nanoscale oscillators, amplified semiconductor/plasmon lasers and single photon emitters, and so forth. Modification of semiconductor band structure/bandgap through electric field modulation, elemental doping, or alloying semiconductors has so far gain...

A set of interatomic pair potentials is developed for CdS and ZnS crystals. We show that a simple energy function, which has been used to describe the properties of CdSe [E. Rabani, J. Chem. Phys. 116, 258 (2002)], can be parametrized to accurately describe the lattice and elastic constants, and phonon dispersion relations of bulk CdS and ZnS in the wurtzite and rocksalt crystal structures. The...

Semiconductor Gel Networks In article number 2101628, Nadja C. Bigall and co-workers demonstrate that a single gold nanoparticle is able to quench the fluorescence of up 9 semiconductor nanorods in mixed, co-gelated gel networks. Upon varying particle ratio CdSe/CdS Au nanocrystals, spatial extent quenching, thus, travel distance photoexcited electrons changed within interconnected backbone.