Effect of sulfur deficiency on the structural, optical and electronic properties of MnS nanostructures

Mohamed, Mohamed Bakr; Badawi, Ali; Farag, Noura M.

doi:10.1016/j.cplett.2021.138877

Cited by 24 publications

(9 citation statements)

References 44 publications

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“…34,35 The MnS displays the characteristic absorption peak of the Mn−S bond at 623.8 cm −1 . 36 These characteristic peaks are all reflected in MnS@Ni-MOF-5 (12 h), indicating the successful compounding of MnS and Ni-MOF.…”

Section: Resultsmentioning

confidence: 93%

“…The Fourier transform infrared (FTIR) spectra (Figure b) of all samples present an absorption peak at 3432.5 cm –1 , indicating the presence of H 2 O molecules. The Ni-MOF shows distinctive peaks at 1379.4 and 1583.6 cm –1 , which are related to the stretching vibration of the −COO– and CC bonds of the benzene ring, respectively, suggesting that H 2 BDC is coordinated to Ni 2+ in a bidentate mode. , The MnS displays the characteristic absorption peak of the Mn–S bond at 623.8 cm –1 . These characteristic peaks are all reflected in MnS@Ni-MOF-5 (12 h), indicating the successful compounding of MnS and Ni-MOF.…”

Section: Resultsmentioning

confidence: 97%

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Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Li,

Luo,

Han

et al. 2023

ACS Appl. Nano Mater.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 97%

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Li,

Luo,

Han

et al. 2023

ACS Appl. Nano Mater.

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“…[ 26–28 ] The peak at 510 nm is primarily caused by the donor–acceptor (D–A) recombination characterized by a relatively wide emission peak, whereas the peaks at 370 and 400 nm near the band edge emission belong to the radiative transition between conduction band (CB) and VB. [ 29,30 ] The 660 nm peak emerged when Mn 2+ ions are located at the undistorted tetrahedral crystal field, where Mn 2+ ( 4 T 1 → 6 A 1 ) transition on Tanabe‐Sugano energy diagram is occurred. [ 30,31 ] With the TAA sulfurization, the V S peak in TAA–MnS is significantly weakened compared with CT–MnS, indicating the greatly reduced concentration of V S in TAA–MnS.…”

Section: Resultsmentioning

confidence: 99%

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Yang,

Wang,

Che

et al. 2024

Solar RRL

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For the emerging Sb2(S,Se)3 solar cells, most high‐efficiency devices employ a standard structure based on the heterojunction of weak n‐type Sb2(S,Se)3 and heavily n‐doped cadmium sulfide (CdS), and the sunlight is incident from the n‐type CdS side in either superstrate or substrate structure. The weak carrier extraction ability of the n‐n heterojunction as well as the parasitic absorption and toxicity from CdS further limit the efficiency improvement and practical applications. Herein, for the first time we demonstrate a strategy of treating manganese sulfide (MnS) by thioacetamide to enhance its p‐type conductivity, and construct a solar cell with inverted structure by forming a heterojunction with n‐type Sb2(S,Se)3. This inverted structure well overcomes the light absorption loss and toxicity elements in the standard structure. We also reveal that this post‐treatment effectively passivates the sulfur vacancy defects of MnS and in turn enables greater band bending in the heterojunctions for suppressed non‐radiative recombination. Ultimately, the hole extraction ability of MnS shows essential improvement and enables a power conversion efficiency of 5.22% for the inverted‐Sb2(S,Se)3 solar cell. This study provides a proof‐of‐concept device structure for the preparation of high‐efficiency Sb2(S,Se)3 solar cells and offers new perspectives to achieve effective intrinsic doping of metal chalcogenides.This article is protected by copyright. All rights reserved.

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“…The methylene group C‐H ( b ) appeared at 1431 cm −1 [27]. The bands between 506 and 612 cm −1 are related to the Mn‐S ( s ) band of γ‐MnS or α‐MnS phase [28].…”

Section: Resultsmentioning

confidence: 99%

Designing a bacterial cellulose‐based hydrogel incorporated with manganese sulfide and graphene oxide for green extraction of acrylamide in bread samples

Sereshti,

Rezvani,

Soltani

et al. 2023

Separation Science Plus

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A novel nanocomposite based on bacterial cellulose (BC) modified by manganese sulfide (MnS) decorated graphene oxide (GO) was prepared. The hydrogel was characterized by Fourier transform infrared, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and adsorption/desorption techniques. The sorbent was employed for determining acrylamide in bread samples using micro‐solid‐phase extraction coupled with high‐performance liquid chromatography. The extraction efficiency of prepared sorbent was 1.4‐fold higher than that of BC. The important extraction factors including elution conditions (acetonitrile 300 μL, 5 min), sorbent composition and mass (50 mg), adsorption time (7 min), sample solution pH (8), and salt effect (3% w/v) were considered for optimization of the method. The analytical merit was validated by assessing the preconcentration factor (178–225), limit of detection (1.56 μg/kg), limit of quantification (5.15 μg/kg), linearity (5.15–500 μg/kg), and determination coefficient (0.9845). The adsorption isotherms and kinetic studies demonstrated that the adsorption process followed the Langmuir model and pseudo‐second‐order kinetics. The relative recoveries and relative standard deviations were 84%–106% and 2.4%–9.2%, respectively. This paper is the first report on the fabrication and use of BC doped with MnS‐GO composite for extraction of acrylamide in typical commercial bread samples.

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Effect of sulfur deficiency on the structural, optical and electronic properties of MnS nanostructures

Cited by 24 publications

References 44 publications

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Designing a bacterial cellulose‐based hydrogel incorporated with manganese sulfide and graphene oxide for green extraction of acrylamide in bread samples

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Effect of sulfur deficiency on the structural, optical and electronic properties of MnS nanostructures

Cited by 24 publications

References 44 publications

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb2(S,Se)3 Planar‐Heterojunction Solar Cells

Designing a bacterial cellulose‐based hydrogel incorporated with manganese sulfide and graphene oxide for green extraction of acrylamide in bread samples

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Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells