CdS semiconductor nanoparticles embedded in AlMCM-41 by solid-state reaction

Sohrabnezhad, Sh.; Pourahmad, Afshin

doi:10.1016/j.jallcom.2010.06.065

Cited by 13 publications

(2 citation statements)

References 33 publications

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“…Several methods have been used to synthesize metal sulfide nanoparticles, including solvothermal synthesis [ 32 ], microwave [ 33 ], ultrasonic irradiation [ 34 ], and thermolysis of single-source precursors in high boiling point solvents that act as surface passivating agents [ 35 , 36 , 37 , 38 ]. For the synthesis of CuS nanocrystals, different synthetic techniques have also been used [ 39 , 40 , 41 , 42 ] to produce nanoparticles with varying morphologies such as nanotubes [ 43 ], nanowires [ 44 ], and nanoplatelets [ 45 ], among others [ 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Synthesis, Optical and Structural Properties of Copper Sulfide Nanocrystals from Single Molecule Precursors

Ajibade

Botha

2017

Nanomaterials

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We report the synthesis and structural studies of copper sulfide nanocrystals from copper (II) dithiocarbamate single molecule precursors. The precursors were thermolysed in hexadecylamine (HDA) to prepare HDA-capped CuS nanocrystals. The optical properties of the nanocrystals studied using UV–visible and photoluminescence spectroscopy showed absorption band edges at 287 nm that are blue shifted, and the photoluminescence spectra show emission curves that are red-shifted with respect to the absorption band edges. These shifts are as a result of the small crystallite sizes of the nanoparticles leading to quantum size effects. The structural studies were carried out using powder X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and atomic force microscopy. The XRD patterns indicates that the CuS nanocrystals are in hexagonal covellite crystalline phases with estimated particles sizes of 17.3–18.6 nm. The TEM images showed particles with almost spherical or rod shapes, with average crystallite sizes of 3–9.8 nm. SEM images showed morphology with ball-like microspheres on the surfaces, and EDS spectra confirmed the presence of CuS nanoparticles.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Synthesis, Optical and Structural Properties of Copper Sulfide Nanocrystals from Single Molecule Precursors

Ajibade

Botha

2017

Nanomaterials

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“…Mesoporous silica materials, such as MCM-41, SBA-15 and KIT-6 are considered as ideal hosts for loading metal oxide particles due to its high surface area, large pore volume and uniform pore size distribution [13][14][15][16][17][18][19]. Moreover, mesoporous silica materials show some advantages such as low cost, wide availability and stability [20].…”

Section: Introductionmentioning

confidence: 99%