Structure and Photoluminescence of Composites Based on CDS Enclosed in Magadiite

Chen, Yufeng; Yu, Gensheng; Li, Fēi; Wei, Junchao

doi:10.1346/ccmn.2013.0610103

Cited by 11 publications

(4 citation statements)

References 44 publications

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“…The packs positions in EDX analysis were illustrated at (2 -4) keV; and that confirmed the CdS thin films are growing successfully at low temperature in ranged 225 o C to 275 o C using CVD process. These results are in good agreement with that reported in literatures [37,38]. The maximum percentage of summation weight for Cd and S atoms is obtained at 275 o C and equal to 94.466% with less error in %, which shown in Table 3.…”

Section: Sem-edx Analysissupporting

confidence: 92%

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

et al. 2021

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Thin films of nanometer sized cadmium sulfide were directly prepared by aerosol-assisted chemical vapor deposition (AA-CVD) method, cadmium ethyl xanthate complex was used as precursor material at 225 o C, 250 o C and 275 o C. The thermal decomposition of complex was characterized by thermal analysis, (thermogravimetric analysis (TGA) and a differential scanning calorimetry (DSC)). The prepared CdS thin films have been characterized by XRD and SEM-EDX analysis. TGA curves ensured that the rapid decomposition of [Cd(S2COEt)2] gives a CdS in single step between 150 o C and 200 o C. XRD patterns confirmed that the CdS particles crystalized as a hexagonal crystallographic phase at low temperatures. The grain size of particles increased with increasing the preparation temperatures from 225 o C to 275 o C,. The spherical CdS nanoparticals were observed in SEM analysis.

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Section: Sem-edx Analysissupporting

confidence: 92%

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

et al. 2021

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“…The violet emission peak at~388À398 nm may be attributed to the zinc interstitial ions (Wageh et al, 2013) or the recombination of electrons with the holes (Zhang et al, 2007;Lu et al, 2012), while the weak peak at 466 nm may arise from the surface states (Denzler et al, 1998;Wang et al, 2002;Chai et al, 2007). The spectrum of pure CdS contains a broad peak at~557À587 nm ascribed to the bandgap of CdS (Wei et al, 2005;Chen et al, 2013). In the spectrum of the ternary ZnCdS-n (n=2, 3) composite, the peaks at~388À398 and 466 nm originating from ZnS decreased markedly, while the broad peak at~557À587 nm attributed to CdS shifted to~499À528 in the ZnCdS-2 and tõ 536À550 nm in the ZnCdS-3 compounds.…”

Section: Uv-visable Spectra and Photoluminescence Spectramentioning

confidence: 99%

“…However, very few studies have been performed on ternary II-VI semiconductor nanoparticles incorporated in a layered host matrix. Therefore, we proposed an approach to enclose ternary Zn 1Àx Cd x S nanoparticles in layered Na-octosilicate, based on our previous successful experiments with other II-VI semiconductor nanoparticles incorporated in layered silicates (Chen et al, 2010(Chen et al, , 2012(Chen et al, , 2013.…”

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confidence: 99%

Synthesis and optical properties of composites based on ternary Zn_1–xCd_xS nanoparticles enclosed in a layered octosilicate

Chen

et al. 2014

Clay miner.

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AB ST R ACT : In order to improve the optical properties and enhance the stability of Zn 1Àx Cd x S nanoparticles, which are important optoelectrical materials, the ternary Zn 1Àx Cd x S nanoparticles were enclosed in a layered octosilicate by a three-step process, namely (i) protonation of Naoctosilicate, (ii) ion-exchange in order to introduce Zn and Cd ions into the interlayer space, and (iii) addition of S 2À to form Zn 1Àx Cd x S particles in the interlayer space of the octosilicate. The basal spacing (~10 Å ) of the final ZnCdS-Oct-n (n = 1, 2, 3, 4) composites noticeably increased in comparison with that of the precursor H-Oct (7.5 Å ). This may be attributed to the incorporation of larger size Zn 1Àx Cd x S particles into the interlayer space of H-Oct. The UV-visible spectra of the composites suggested that the transmission band-edges gradually shifted to low energy with increasing molar ratio of Cd/Zn. Moreover, the transmission band-edges of the composites are between those of layered Octosilicate, ZnS, and CdS. TEM observation confirmed that the size of Zn 1Àx Cd x S nanoparticles enclosed in the layered silicate was about~3À5 nm.

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“…Recently, the intercalation of inorganic nanoparticles (e.g. ZnO, CuO, CdS and ZnS) into mag has been received increasing attention [30][31][32][33][34]. The intercalation of fluorescers into the layer space of mag has been less reported compared with montmorillonite [9,14,15,35].…”

Section: Introductionmentioning

confidence: 99%

Formation and optical properties of metal/10-hydroxybenzo[h]quinolone complexes in the interlayer spaces of magadiite by solid–solid reactions

et al. 2018

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Intercalation and in situ formation of three fluorescent complexes, Al(III)-, Cr(III)- and Cu(II)-10-hydroxybenzo[h]quinolone (M-HBQ, M = Al, Cr and Cu), in the interlayer spaces of magadiite (mag) were studied by solid–solid reactions between metal ions exchanged mags (M-mag, M = Al, Cr and Cu) and HBQ. Results show that the basal spacings of the intercalated composites increase after the intercalation of HBQ into M-mags. The amount of HBQ in the intercalated compounds is different due to the amount of metal ions and the diversification of coordination ability of metal ions, and the order of the coordination ability of these three metal ions is Cu2+ > Cr3+ > Al3+. The amount of the metal cations in the interlayer of mag is enough for the in situ complex formation of M-HBQ complexes. The slight shift of the absorption and luminescence bands of the complexes suggests the different microstructures, including molecular packing of the complexes in the interlayer spaces of mags, resulting that the host–guest interactions are formed. These findings show that the intercalation and in situ formation of M-HBQ complexes (M = Al, Cr and Cu) in the interlayer space of mag are successfully achieved in the current work.

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Structure and Photoluminescence of Composites Based on CDS Enclosed in Magadiite

Cited by 11 publications

References 44 publications

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

Synthesis and optical properties of composites based on ternary Zn_1–xCd_xS nanoparticles enclosed in a layered octosilicate

Formation and optical properties of metal/10-hydroxybenzo[h]quinolone complexes in the interlayer spaces of magadiite by solid–solid reactions

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Structure and Photoluminescence of Composites Based on CDS Enclosed in Magadiite

Cited by 11 publications

References 44 publications

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

Chemical Vapour Deposition of CdS Thin Films at Low Temperatures from Cadmium Ethyl Xanthate

Synthesis and optical properties of composites based on ternary Zn1–xCdxS nanoparticles enclosed in a layered octosilicate

Formation and optical properties of metal/10-hydroxybenzo[h]quinolone complexes in the interlayer spaces of magadiite by solid–solid reactions

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Synthesis and optical properties of composites based on ternary Zn_1–xCd_xS nanoparticles enclosed in a layered octosilicate