Langmuir±Blodgett (LB) multilayers of arachidic acid (AA) and octadecylamine (ODA) were used as templates in order to produce cadmium sul®de (CdS) nanoparticle arrays. Both atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) were used to characterize the ®lm. In the absence of ODA, the cadmium arachidate trilayers were highly crystalline with a lattice constant of 0.42 nm. ...

Improvement of polyvinyl alcohol stability against ultraviolet (UV) illumination is achieved by introducing cadmium sulfide (CdS) nanoparticles into the polymeric matrix. Enhancement of stability is analyzed by optical characterization methods. UV protection is achieved by diminishing the probability of photo-activated formation of defects in polymer. The sources of polymer protection are the l...

A reusable potassium ion biosensor was reported for the first time based on the reversible DNA structural change and the interaction between surface plasmons of Au nanoparticles (NPs) and the ECL emission of CdS nanocrystals (NCs).

In this paper, we present a simple method for preparation of graphene-ZnO nanocomposites (G-ZnO). The method is based on thermal treatment of the graphene oxide (GO)/ZnO paste which reduces the graphene oxide into the graphene and leads to the formation of the G-ZnO nanocomposite. The structure, morphology and optical properties of synthesized nanocomposites are characterized with XRD, FESEM, F...

Plasmonic nonmetal semiconductors with localized surface plasmon resonance (LSPR) effects possess extended light-response ranges and can act as highly efficient H2 generation photocatalysts. Herein, an LSPR-enhanced 0D/2D CdS/MoO3?x heterojunction has been synthesized by the growth of 0D CdS nanoparticles on 2D plasmonic MoO3?x elliptical nanosheets via a simple coprecipitation method. Taking a...

We report the use of random Au nanoislands to enhance the absorption of CdS photodetectors at wavelengths beyond its intrinsic absorption properties from visible to NIR spectrum enabling a high performance visible-NIR photodetector. The temperature dependent annealing method was employed to form random sized Au nanoparticles on CdS films. The hot electron induced NIR photo-detection shows high ...

An efficient photocatalyst consisting of CdS nanoparticle dispersed mesoporous silica-titania was prepared using amphiphilic triblock copolymer P123 as template and silica-titania sol–gel precursors. The CdS nanoparticle was incorporated into silica-titania mesoporous nanosturctures by post impregnation method. The synthesized catalyst has been characterized by FTIR, TEM, SEM, and EDAX analysis...

In our present work undoped CdS and Cu doped CdS thin films were deposited on glass substrate by chemical bath method. XRD analysis of the as-prepared sample indicated CdS:Cu nanorods to be mixture of two phases namely hexagonal and cubic. It has been observed that one particular plane (100) has preferentially grown as the maximum intense peak whereas the other two planes (101) and (102) have d...

Advances in the size1 and shape2 control of solution-grown nanocrystals have driven recent interest in the development of welldefined multicomponent nanostructures. Composition control, through the incorporation of two or more distinct nanostructured components, represents an effective approach to tailoring the chemical and physical properties of nanocrystals. The resulting hybrid structures of...

Metal−semiconductor nanohybrids (or heterostructures), such as Au−CdS, have become an important class of materials because of their role in photochemical hydrogen production and in other catalytic reactions. Here we report the results of photophysical studies of the interactions of these particles with ATTO dyes (ATTO 590 and 655), which are used as fluorescent probes in a wide range of spectro...