Influence of Mn/S molar ratio on the microstructure and optical properties of MnS nanocrystals synthesized by wet chemical technique

Veeramanikandasamy, T.; Rajendran, K.; Sambath, K.

doi:10.1007/s10854-014-2029-5

Cited by 9 publications

(6 citation statements)

References 27 publications

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“…[ 29 ] Nano MnS formed by a mild synthetic route exhibited a blue color caused by Mn 2+ 3d‐configuration. [ 43 ] Dhandayuthapani et al. [ 44 ] tuned the morphology of metastable MnS films and hence its optical properties; they found sex sub emitted bands, the first one at 360 nm corresponding to wurtzite phase (γ‐MnS), while the other five bands (377, 410, 459, 494, and 506) nm related to zinc blende (β‐MnS) phase of lowest energy Mn 2+ d–d transitions of 6 A 1 (S) → 4 E( 4 D), 6 A 1 (S) → 4 T 2 ( 4 D), 6 A 1 (S) → 4 A 1 , 4 E 4 G, 6 A 1 (S) → 4 T 2 ( 4 G), and 6 A 1 (S) → 4 T 1 ( 4 G), respectively.…”

Section: Resultsmentioning

confidence: 99%

Influence of Synthesis Temperature on the Phases Developed and Optical Properties of Manganese Sulfide and Zinc Sulfide

Mohamed

Farag

Ahmed

2021

Crystal Research and Technology

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Nano MnS and ZnS samples are prepared through a simple thermolysis procedure. The effect of synthesis temperature on the different phases formed and their percentages, and on the lattice parameters and crystallite size of MnS and ZnS is examined using Rietveld analysis for X‐ray diffraction patterns. The minimum synthesis temperature at which MnS can be formed by the present simple procedure is 250 °C, while ZnS can be prepared at a lower temperature of 200 °C. For manganese sulfide, traces of Mn3O4 phase appear at 300 °C and increase with temperature, while ZnS resists oxidation until 500 °C; pure ZnO forms at 700 °C. The MnS and ZnS samples, obtained at all temperatures, are found to be biphasic; cubic and hexagonal. The nano nature of the samples and the particle morphology are investigated by high‐resolution transmission electron microscopy. Fourier‐transform infrared spectroscopy is applied to follow the characteristic vibration bands in both systems. The values of the different energy gaps depend on the crystallite size, phases’ percentages, and the preparation temperature. The photoluminescence intensity and the emitted colors from MnS and ZnS depend on the synthesis temperature.

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Section: Resultsmentioning

confidence: 99%

Influence of Synthesis Temperature on the Phases Developed and Optical Properties of Manganese Sulfide and Zinc Sulfide

Mohamed

Farag

Ahmed

2021

Crystal Research and Technology

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“…Complicated view of the UV-vis absorbance spectra similar to presented in Fig. 4a was treated in [11] as formation of β-and γ-MnS/citrate NPs where two absorbance peaks about 206÷232 nm and 263÷265 nm as well as the broad absorption extending up to 800 nm were observed. However we take into account that the peaks positions are close to λmax.…”

Section: Mns/citrate Nps Synthesis 231 Series Amentioning

confidence: 95%

“…High-temperature solvothermal reaction seems to be effective for fabricating various structures of the MnS NPs, in particular, nanorods, mono-and branched wires, hollow spheres and cubes, porous networks, coral shaped and floral-like [5][6][7][8][9] nanostructures. However less data are available about a chemical bath deposition in aqua media at ambient temperatures [11,12]. Short a list of substances is known as capping agents for MnS NPs, namely, L-сysteine [2, 10 and 13], citrateions [11], EDTA [14], palmitoyl piperidinium chloride and stearoyl piperidinium chloride [15] and starch even [12].…”

Section: Introductionmentioning

confidence: 99%

“…However less data are available about a chemical bath deposition in aqua media at ambient temperatures [11,12]. Short a list of substances is known as capping agents for MnS NPs, namely, L-сysteine [2, 10 and 13], citrateions [11], EDTA [14], palmitoyl piperidinium chloride and stearoyl piperidinium chloride [15] and starch even [12]. Multipod γ-MnS microcrystals have been synthesized by the solvothermal method with thiosemicarbazide both as sulphur source and stabilizer [8].…”

Section: Introductionmentioning

confidence: 99%

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Influence of various capping agents on optical properties and stability of MnS nanoparticles

Pylypko

Krupko

Fochuk

2022

Phys. Chem. Solid St.

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Two thiols (L-cysteine and thioglycolic acid) as well as citrate-anion were employed as coordinating reagents to control the MnS nanoparticles nucleation and growth at various pH in aqueous media. The obtained colloids were characterized by means of UV–visible spectroscopy and atomic force microscopy. Mass fraction of elements was estimated by Energy Dispersive X– ray. Effect of the nanoparticles forming ions (Mn2+ and S2-) molar ratio as well as the capping agents nature and content (the ligands coordination number c. n. = 2; 4 and 6) on UV–vis absorbance spectra was studied. It was determined that Mn2+– ions amount and the coordination number of the stabilizers needed for effective capping of the MnS nanoparticles are close in the three studied cases. Possibility of Mn(OH)2 formation as an additional product of S2-- and Mn2+– ions interaction in aqueous medium is discussed.

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“…Further, a considerable effort has been made by researchers to modify the crystalline phases and surface morphologies of MnS [11,12]. Veeramanikandasamy et al had modified the microstructure and optical properties of MnS using different Mn/S ratio [13]. Further, Shi et al had studied the effect of hydrothermal annealing on the structure, morphology and optical properties of MnS films [14].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Atomic and Physical Properties of Biofield Energy Treated Manganese Sulfide Powder

Trivedi¹

2015

AJPA

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Manganese sulfide (MnS) is known for its wide applications in solar cell, opto-electronic devices, and photochemical industries. The present study was designed to evaluate the effect of biofield energy treatment on the atomic and physical properties of MnS. The MnS powder sample was equally divided into two parts, referred as to be control and to be treated. The treated part was subjected to Mr. Trivedi's biofield energy treatment. After that, both control and treated samples were investigated using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, and electron spin resonance (ESR) spectroscopy. The XRD data revealed that the biofield energy treatment has altered the lattice parameter, unit cell volume, density, and molecular weight of the treated MnS sample as compared to the control. The crystallite size on various planes was significantly changed from -50.0% to 33.3% in treated sample as compared to the control. The FT-IR analysis exhibited that the absorption band attributed to Mn-S stretching vibration was reduced from (634 cm -1 ) to 613 cm -1 in treated MnS as compared to the control. Besides, the ESR study revealed that g-factor was reduced by 3.3% in the treated sample as compared to the control. Therefore, the biofield energy treated MnS could be applied for the use in solar cell and semiconductor applications.

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Influence of Mn/S molar ratio on the microstructure and optical properties of MnS nanocrystals synthesized by wet chemical technique

Cited by 9 publications

References 27 publications

Influence of Synthesis Temperature on the Phases Developed and Optical Properties of Manganese Sulfide and Zinc Sulfide

Influence of Synthesis Temperature on the Phases Developed and Optical Properties of Manganese Sulfide and Zinc Sulfide

Influence of various capping agents on optical properties and stability of MnS nanoparticles

Characterization of Atomic and Physical Properties of Biofield Energy Treated Manganese Sulfide Powder

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