Low temperature growth of CuS nanoparticles by reflux condensation method

Mageshwari, K.; Mali, Sawanta S.; Hemalatha, Thiagarajan; Ramakrishnan, S.; Patil, Pramod S.

doi:10.1016/j.progsolidstchem.2011.10.003

Cited by 49 publications

(31 citation statements)

References 30 publications

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“…Numerous research papers reporting synthesis of CuS in thin films [8][9][10][11][12][13][14][15][16][17][18], nanoparticles [19][20][21][22][23][24][25][26][27][28][29][30], micro-meter size morphologies [31,32], etc. forms have been reported.…”

Section: Introductionmentioning

confidence: 99%

Covellite CuS – Single crystal growth by chemical vapour transport (CVT) technique and characterization

Chaki

Tailor

Deshpande

2014

Materials Science in Semiconductor Processing

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Section: Introductionmentioning

confidence: 99%

Covellite CuS – Single crystal growth by chemical vapour transport (CVT) technique and characterization

Chaki

Tailor

Deshpande

2014

Materials Science in Semiconductor Processing

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“…Quantum confinement in the QDs results in discrete energy levels and an increase in the effective band gap. The band gap of CuS nanocrystals has been reported to be in the range between 1.25 and 2.81 eV (Mageshwari et al 2011;Nair et al 1998;Raevskaya et al 2004;Yildirim et al 2009). The band gap of PbS nanocrystals has been reported to be in the range 0.5-2.32 eV (Joshi et al 2004;Mukherjee et al 1994;Nanda et al 2002) and even as high as 5.2 eV (Thielsch et al 1998).…”

Section: Resultsmentioning

confidence: 99%

Silica-coated ZnS quantum dots as fluorescent probes for the sensitive detection of Pb2+ ions

Cao

et al. 2014

J Nanopart Res

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The silica-coated ZnS quantum dots (ZnS@SiO 2 QDs) were prepared via a simple and environmentally friendly process. The oil-soluble ZnS cores were successfully transferred to water by the coating of SiO 2 shells. The QDs exhibited satisfying dispersion and luminescent properties in water. The ZnS@SiO 2 QDs were directly used as fluorescent probes for heavy metal ions without the addition of any buffer solution. The luminescence of QDs was extremely sensitive to Pb 2? ions, and the fluorescence quenching was well described by the Stern-Volmer equation, with an even quenching constant for the Pb 2? ions samples concentration ranging from 10 -9 to 2.6 9 10 -4 M. An extended hypothesis based on the traditional cation exchange mechanism is proposed to analyze the most significant fluorescence quenching effect by Pb 2? ions. Studies show that ZnS@SiO 2 QDs have great potentials to be a sensor for Pb 2? analysis at low to high concentrations.

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“…The accelerating voltage and the applied current were 20 kV and 150 mA, respectively. 21 The diffraction peaks of these two samples are sharp and intense, indicating a highly crystalline nature. The electronic binding energy of the copper sulde was examined by X-ray photoelectron spectroscopy (XPS) on a PHI-5000 VersaProbe instrument.…”

Section: Characterizationmentioning

confidence: 92%

Preparation of monodispersed CuS nanocrystals in an oleic acid/paraffin system

Xie

et al. 2015

RSC Adv.

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Well-dispersed CuS nanocrystals were synthesized through a simple hot injection approach using cupric oxide and elemental sulfur as the precursors in an oleic acid/liquid paraffin system. The structural, morphological and optical properties of the as-prepared nanocrystal CuS samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet-visible and near-infrared spectrophotometry, and room-temperature photoluminescence (RT-PL). The band gap of the CuS samples were estimated from the ultraviolet-visible spectra. The formation mechanism of monodispersed CuS nanocrystals in an oleic acid/liquid paraffin system was proposed. The cleaning agents have an important influence on the final morphology of the CuS nanocrystals, and pure hexagonal covellite CuS NCs can be obtained by controlling the ratio of Cu 2+ : S 2À ¼ 1 : 1. The asprepared CuS nanocrystals with the narrow band gap reveal dramatically broad absorption bands in the visible-light and near-infrared (NIR) region, exhibiting promising applications in photovoltaic cells, electrochemical sensors and photocatalysts.

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Low temperature growth of CuS nanoparticles by reflux condensation method

Cited by 49 publications

References 30 publications

Covellite CuS – Single crystal growth by chemical vapour transport (CVT) technique and characterization

Covellite CuS – Single crystal growth by chemical vapour transport (CVT) technique and characterization

Silica-coated ZnS quantum dots as fluorescent probes for the sensitive detection of Pb2+ ions

Preparation of monodispersed CuS nanocrystals in an oleic acid/paraffin system

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