A simple chemical route to synthesis the CuS nanocrystal powder at room temperature and phase transition

Palve, Balasaheb M.; Jadkar, Sandesh; Pathan, Habib M.

doi:10.1007/s10854-016-5318-3

Cited by 9 publications

(8 citation statements)

References 43 publications

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“…All powder were mixed and heated at 300°C (optimum temperature) with flowing N 2 in an electric oven. 11 The crystallite size increased as amount of Mg increased. The instrumental broadening was corrected by LaB 6 standard.…”

Section: Techniques and Preparationmentioning

confidence: 97%

“…24 Furthermore, the crystallite size diminished as the amount of sulfur increased in CuS samples in contrast to the result obtained in CuS nanocrystal prepared by a simple chemical route; as the amount of S increases in the sample, the sample exhibited better crystallinity. 11 The crystallite size increased as amount of Mg increased. A similar effect was observed in Mg-doped Sn 2 S 3 thin films where crystallite size enlarged from 28 to 33 nm as the amount of Mg-doped increased from 0% to 3%.…”

Section: Techniques and Preparationmentioning

confidence: 97%

“…11 Thus, the samples exhibited a blue shift due to the internal stress induced by the crystal structural defects. The optical band gap energy (E g ) may be got from intercepts of the tangent of the plot of (αhν) 2 vs hν with the abscissa axis.…”

Section: Optical Propertiesmentioning

confidence: 99%

“…8 It was found that the energy gap of CuS mesoporous hollow spheres is larger than the same composition with different morphology. 11 The energy gap of CuS prepared by wet chemical co-precipitation method became narrower as it doped with either Ni, Fe, Co, or Mn. Additionally, changing the copper to sulfur ratio used in the preparation of CuS affects its properties, for example, the energy gap of CuS is enhanced from 2.18 to 2.32 eV as Cu:S ratio was changed from 1:1 to 1:2.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, changing the copper to sulfur ratio used in the preparation of CuS affects its properties, for example, the energy gap of CuS is enhanced from 2.18 to 2.32 eV as Cu:S ratio was changed from 1:1 to 1:2. 11 The energy gap of CuS prepared by wet chemical co-precipitation method became narrower as it doped with either Ni, Fe, Co, or Mn. 12 Conversely, the energy gap of CuS prepared by a hydrothermal method using CTAB increased from 2.64 to 4.51 eV when doped with Ni.…”

Section: Introductionmentioning

confidence: 99%

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Role of Cu/S ratio and Mg doping on modification of structural and optical characteristics of nano CuS

Mohamed

Abdel-Kader

Almarashi

2019

Int J Applied Ceramic Tech

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Nano CuS with different Cu to S ratio and also Mg‐doped nano CuS are prepared using a thermolysis procedure under nitrogen flows. The effect of changing copper to sulfur ratio in preparation of CuS under flowing nitrogen and also Mg‐doped CuS on the lattice parameters and crystallite size is studied using X‐ray diffraction data by applying the Rietveld profile method. Scanning electron microscope mapping is used to verify the distribution of different elements over undoped and doped CuS samples. Fourier transforms infrared spectroscopy spectra confirm that the structure of CuS is not altered by doping or changing of the Cu to S ratio. In order to examine the effect of changes of Cu to S or Mg doping on the absorption behavior of nano CuS, ultraviolet spectroscopy is used. The energy gaps of different samples are determined using Tauc’s relation. The photoluminescence spectroscopy reveals that all samples exhibit violet and blue sub‐emissions except a CuS with Cu:S ratio 1:4 which also emits green sub‐emission.

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Section: Techniques and Preparationmentioning

confidence: 97%

Section: Techniques and Preparationmentioning

confidence: 97%

Section: Optical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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