Influence of different solvents on the structural, optical and morphological properties of CdS nanoparticles

Oliveira, Jéssica; Milao, T. M.; Araújo, V. D.; Moreira, Mário L.; Longo, Elson; Bernardi, Maria Inês Basso

doi:10.1016/j.jallcom.2011.03.171

Cited by 59 publications

(41 citation statements)

References 24 publications

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“…Normally Cd-S stretching frequency has been found in the lower wave number region, i.e. below 700 cm −1 [15]. In our CdS nanoparticles, a medium strong absorption peak at 651.62 cm −1 belonging to Cd-S stretching has been observed.…”

Section: Fourier Transform Infrared Analysissupporting

confidence: 45%

“…Oliveira et al [15] has also reported wurtzite CdS nanoparticles (yellow to orange color) having an absorption edge between 400 nm to 470 nm. The position of the absorption edge has been observed to be blue shifted, by 53 nm relative to the fundamental absorption edge of bulk wurtzite CdS (513.6 nm) [6].…”

Section: Optical Characterizationmentioning

confidence: 93%

“…Therefore, more extensive studies on the nanoforms of CdS semiconductor and their various properties have been carried out. A variety of chemical routes to synthesize CdS nanoforms have been employed [6,9,[14][15][16][17][18][19][20][21][22]. However, the co-precipitation technique is an important bottomup approach for the synthesis of nanoparticles.…”

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confidence: 99%

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Stable phase CdS nanoparticles for optoelectronics: a study on surface morphology, structural and optical characterization

Kumar

Sharma

2016

Materials Science-Poland

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This work presents a study on the surface morphology, structure and optical behavior of stable phase cadmium sulphide (CdS) nanoparticles synthesized via co-precipitation technique. Scanning electron microscopy (SEM) analysis has been employed to study a cluster formation in the aggregated nanoparticles. An image analysis approach using ImageJ has been used to measure the size of nanoparticles from the SEM micrographs. Fourier transform infrared spectroscopic (FT-IR) analysis identified absorption peaks of Cd-S stretching along with moisture content. X-ray diffraction (XRD) analysis showed that CdS nanoparticles crystallized in wurtzite structure with a preferential orientation along (0 0 2) plane. The particle size, microstrain and lattice constants have been evaluated using XRD data. The lattice parameters of these nanoparticles were found to be shorter than the bulk value which led to lattice contraction. The optical absorption study showed a blue shift in the fundamental absorption edge indicating a quantum size effect.

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Section: Fourier Transform Infrared Analysissupporting

confidence: 45%

Section: Optical Characterizationmentioning

confidence: 93%

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Stable phase CdS nanoparticles for optoelectronics: a study on surface morphology, structural and optical characterization

Kumar

Sharma

2016

Materials Science-Poland

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“…Seven separate diffraction peaks can be seen at the 2θ values of 24.98, 26.5, 28.14, 31.8, 43.8, 48.2 and 51.9°. It was observed that varying the solvent during synthesis of nano CdS presented preferential growth in different crystalline directions [18]. Similarly it can be believed that a less pronounced preferential growth occurred in the nanocomposite film samples of this study.…”

Section: Results and Discussion 31 Fourier Transform-infrared Spectsupporting

confidence: 69%

Influence of cadmium sulfide nanoparticles on structural and electrical properties of polyvinyl alcohol films

Koteswararao¹,

Abhishek²,

Satyanarayana³

et al. 2016

Express Polym. Lett.

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Abstract. Cadmium sulfide (CdS) nanoparticles have been synthesized by hydrothermal method and dispersed in poly vinyl alcohol (PVA) matrix in varying amounts by weight. Subsequently, PVA/CdS nanocomposites have been synthesized with the objective of investigating the effect of CdS nanoparticles on structural and electrical properties of PVA films. Structural properties were analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. Differential scanning calorimetry (DSC) was used to investigate thermal properties of PVA/CdS nanocomposites. Electrical properties were measured by using high frequency LCR meter and were found to be strongly dependent on frequency and nano CdS content. Dielectric constant decreased with increase in frequency and with increase in nanofiller concentration. AC conductivity and dielectric loss increased with frequency and decreased with increase in nano CdS content.

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“…The microwave-heating method has recently attracted the attention due to its very short reaction time, its production of small particles with narrow particle size distribution and its low energy consumption compared with conventional methods (Avansi et al, 2011;Oliveira et al, 2011;Zhang et al, 2011;Zou et al, 2012;Robles-Nuñez et al, 2012). Within this context, this work aims, via the microwave-assisted method, to perform the synthesis of pure zinc oxide and zinc oxide doped with manganese.…”

Section: Introductionmentioning

confidence: 99%

Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion

et al. 2014

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Wurtzite-type Zn1−xMnxO (x = 0, 0.03, 0.05, 0.07) nanostructures were successfully synthesised using a simple microwave-assisted hydrothermal route and their catalytic properties were investigated in the cellulose conversion. The morphology of the nanocatalysts is dopant-dependent. Pure ZnO presented multi-plate morphology with a flower-like shape of nanometric sizes, while the Zn0.97Mn0.03O sample is formed by nanoplates with the presence of spherical nanoparticles; the Zn0.95Mn0.05O and Zn0.93Mn0.07O samples are mainly formed by nanorods with the presence of a small quantity of spherical nanoparticles. The catalyst without Mn did not show any catalytic activity in the cellulose conversion. The Mn doping promoted an increase in the density of weak acid sites which, according to the catalytic results, favoured promotion of the reaction.

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Influence of different solvents on the structural, optical and morphological properties of CdS nanoparticles

Cited by 59 publications

References 24 publications

Stable phase CdS nanoparticles for optoelectronics: a study on surface morphology, structural and optical characterization

Stable phase CdS nanoparticles for optoelectronics: a study on surface morphology, structural and optical characterization

Influence of cadmium sulfide nanoparticles on structural and electrical properties of polyvinyl alcohol films

Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion

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