Bis(hexylmethyldithio-/diselenocarbamato)cadmium(II)/zinc(II) (M(E2CNMenHex)2 [M = Zn, Cd; E S, Se]) have been used as single-source precursors for the preparation of TOPO-capped CdS, CdSe, ZnS, and ZnSe nanoparticles. The are stable long periods time pyrolyse cleanly to give high yields nanocrystals. nanoparticles were quality, close monodispersed, showed quantum confinement with characteristic band edge luminescence in their emission spectra. broad diffraction XRD pattern diffuse rings...

In this work, we report the synthesis of CdSe/CdS, CdSe/ZnS, and CdSe/ZnSe core/shell CdSe/CdS alloy nanoparticles using bis(hexyl(methyl)dithio-/-diselenocarbamato)cadmium(II)/zinc(II) compounds as single-source precursors. We compare optical properties in relation to those parent organically capped binary nanoparticles. also CdSe alloys particles structures. The absorption spectra show red shifts 0.020, 0.038, 0.046 eV, respectively, with respect Photoluminescence (λexc = 400 nm) (622 nm),...

Recent advances in nanotechnology could facilitate the production of cheaper solar cells. This review describes synthetic routes to various nanostructured materials that are potentially useful photovoltaic applications. We have focused on based earth abundant elements and/or those held lower toxicity. Methods synthesize binary chalcogenides with variable stoichiometries such as iron sulfide, copper and nickel sulfide described detail. Other important cadmium telluride lead also covered....

Pure CdS and Cu-doped thin films were deposited using the spray pyrolysis technique characterized XRD, XPS, AFM, UV-VIS spectroscopy two probe DC-conductivity measurements. 2%, 4% 6% Cu-content was used for doping. The particle size found to decrease from 28 nm 25.4 upon Cu-doping. influence of Cu-doping on stress dislocation per unit volume has been estimated XRD data. AFM images annealed show changes in morphology with increase surface roughness 25 31 Cu-6% Reflectance transmission...

Abstract Nickel sulfide is regarded as a material with tremendous potential for energy storage and conversion applications. However, it exists in variety of stable compositions obtaining pure phase challenge. This study demonstrates potentially scalable, solvent free selective synthesis uncapped α-NiS, β-NiS α-β-NiS composites using nickel alkyl (ethyl, octyl) xanthate precursors. Phase transformation morphology were observed by powder-X-ray diffraction (p-XRD), transmission electron...

Cashew nut shells, agro-waste generated from cashew factories, are rich in valuable bio-based green and renewable materials.

In the present study, effects of metallic doping on photoelectron\chemical properties zinc oxide thin films have been studied. All deposited using spray pyrolysis technique at a constant level 3 wt% whereby Cu, Ni, and Pb were used as dopants. The structure all was studied by X-ray diffraction which showed grain size doped to be 50 nm. energy band gap estimated optical transmission spectroscopy. Pb-doped ZnO photoelectrodes applied for photoelectrochemical (PEC) H2 generation from H2O. leads...

CuInSe2 quantum dots are reported here for the first time. The highly crystalline nanoparticles of and also CuSe were prepared by reaction in tri-n-octylphosphine oxide (TOPO), producing TOPO-capped particles that close to monodisperse. Transmission electron microscopy shows spherical, with clear lattice fringes (see Figure).

TOPO (tri-n-octylphosphine oxide) capped Mn-doped ZnS and CdS nanoparticles have been prepared from bis(diethyldithiocarbamato)zinc(II) or bis(methylhexyldithiocarbamato)cadmium(II) manganese dichloride. The obtained all show quantum size effects in their optical spectra with respect to the parent ZnS.

CdS nanoparticles capped with tri-n-octylphosphine oxide (TOPO) have been synthesised by a single-source route using cadmium ethylxanthate as precursor. The obtained show quantum size effects in the optical absorption spectra and photoluminescence shows an emission maximum that is characteristically red shifted relation to band edge. X-ray diffraction (XRD) pattern material be hexagonal calculated particle (from Scherrer equation) of 3.9 nm. particles confirmed transmission electron...

Inorganic cesium lead bromoiodide based planar perovskite solar cells with ZnO electron transport layers are deposited using one step spin coating.

The development of cost-effective, functional materials that can be efficiently used for sustainable energy generation is highly desirable. Herein, a new molecular precursor bismuth (tris(selenobenzoato)bismuth(III), [Bi(SeOCPh)3]), has been to prepare selectively Bi or Bi2Se3 nanosheets via colloidal route by the judicious control reaction parameters. formation mechanism was investigated, and it observed trioctylphosphine (TOP) plays crucial role in Bi. Employing vapor deposition method...

Cadmium complexes of N,N-diethyl-N′-benzoylthiourea and N,N-diethyl-N′-benzoylselenourea have been used as single-source precursors for the synthesis HDA capped CdS CdSe nanoparticles in a predominantly cubic phase, respectively. Both types particles show quantum confinement effects close to band edge luminescence. The particle morphology obtained from thermolysis bis[N,N-diethyl-N′-(benzoylthioureato)]cadmium(II) bis[N,N-diethyl-N′-(benzoylselenoureato)]cadmium(II) was found be independent...

The pyridine adduct of a cadmium piperidine dithiocarbamate complex was used to deposit CdS thin films and for the synthesis nanoparticles.

Tris-(piperidinedithiocarbamato)iron(III) (1) and tris-(tetrahydroquinolinedithiocarbamato)iron(iii) (2) complexes have been synthesized their single-crystal X-ray structures were determined. Thermogravimetric analysis (TGA) of the showed decomposition to iron sulfide. Both then used as single-source precursors for deposition sulfide thin films by aerosol-assisted chemical vapour (AACVD). Energy-dispersive (EDX) spectroscopy confirmed formation films. The addition tert-butyl thiol almost...

The properties of untreated sugar cane bagasse (SCB) and soft wood (SW) their respective celluloses were investigated. indicated improved crystallinity index values decreased concentration lignin hemicellulose compared to counterparts. Three degradation models, Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (OFW), Kissinger (KGR) methods employed determine apparent activation energy values. Generally, the thermal processes both sugarcane included dehydration, cellulose, whereas degraded...

Abstract The development of cost‐effective and easily accessible bifunctional materials, which can be effectively used for energy storage generation, is highly desirable. Herein, a new molecular precursor [ tris (morpholinodithiocarbamato)Co(III)] has been synthesized the X‐ray crystal structure complex determined. was to prepare oleylamine (OLA)‐capped cobalt sulfide nanoplatelets, using facile hot injection method at two different temperatures (200 °C 260 °C). characterization samples...