A contemplating review on different synthesis methods of 2D-Molybdenum disulfide (MoS2) nanosheets

Karim, Syed Shujaat; Sudais, Abubakar; Shah, Muhammad Salman; Farrukh, Sarah; Ali, Subhan; Ahmed, Mubashir; Salahuddin, Zarrar; Fan, Xianfeng

doi:10.1016/j.fuel.2023.128923

Cited by 12 publications

(2 citation statements)

References 104 publications

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“…Two-dimensional (2D) Transition Metal dichalcogenides (MoS 2 , WSe 2 , WS 2 , MoSe 2 , MoTe 2 ) have received great attention due to its unique optical, electrical, and mechanical properties [2][3][4]. Among them, Molybdenum disul de (MoS 2 ) nanosheets are the most promising candidates because of their potential applications in optoelectronic devices, catalysis, highly effective sensors, batteries, supercapacitors, water desalination, energy storage and many other elds [5][6][7][8][9]. MoS 2 nanosheet has garnered signi cant attention owing to its unique properties including mechanical exibility, and a large surface area, number of layers dependent tunable band gap, etc.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Gogoi,

Deb

2024

Plasmonics

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Metal nanoparticles decorated Molybdenum disulphide (MoS 2 ) nanosheets have received great attention of researchers due to their potential applications in biosensing, optoelectronics, photocatalysis, SERS, etc.Here, we report the enhanced optical and electrical properties of wide band gap MoS 2 nanosheets when decorated with silver nanoparticles (Ag-MoS 2 nanosheets). Field Emission Scanning Electron Spectroscopy (FESEM) images reveal the formation of well-shaped MoS 2 nanosheet-like structures decorated with silver nanowires. MoS 2 nanosheets are 27.9 µm long and 12.9 µm wide and the thickness is in the range of nanometer. X-ray diffraction (XRD) spectra show peaks at 25.46°, 33.79°, 36.28°, and 50.97° corresponding to ( 111), ( 100), (102), and (105) crystalline planes for pure MoS 2 and at 47.26° and 78.28° corresponding to the ( 200) and ( 311) crystalline planes for silver in Ag-MoS 2 nanosheets respectively. The UV-Vis absorption peak is observed at 340 nm for MoS 2 but gets blue-shifted for Ag-MoS 2 nanosheets. The calculated band gap is found to be 3.05eV for MoS 2 nanosheet, so it falls under the category of wide band gap (2-4 eV) semiconductors which can have potential application in UV photodetection. From the photoluminescence spectra, we have observed enhanced emission for Ag-MoS 2 in the range of 410-470 nm for the excitation wavelength 280 nm. Raman peak intensity of MoS 2 nanosheet has increased signi cantly when decorated with Ag nanostructure which can have potential SERS application. I-V characteristic of Ag-MoS 2 nanosheets under illumination exhibits negative photoconductivity but is positive for pristine MoS 2 nanosheets.

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Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Gogoi,

Deb

2024

Plasmonics

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“…MoS 2 is an interesting semiconducting material with an indirect-to-direct bandgap transition from 1.2 to 1.9 eV that depends on its thickness. Furthermore, MoS 2 nanosheets have demonstrated the ability to adsorb single-stranded DNA; hence, they can be utilized for the construction of electrochemical sensors efficiently for highly sensitive detection [70]. In 2018, Qiao et al [71] developed an electrochemical sensing platform for the detection of cardiac troponin I (cTnI), which is a biomarker for the early diagnosis of acute myocardial infarction based on aptamer-MoS 2 nanoconjugates.…”

Section: Molybdenum Disulfide Nanosheet-based Sensorsmentioning

confidence: 99%

Aptamer-Based Optical and Electrochemical Sensors: A Review

Farid,

Ghosh,

Dutta

et al. 2023

Chemosensors

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There is a pressing need to identify recent directions in the field of aptamer-based sensing. DNA aptamers that are synthetically generated by in vitro selection mechanisms using the SELEX technique are single-stranded oligonucleotides which are selected to bind to a target with favorable sensitivity and selectivity. These aptamers have attracted significant attention due to their high binding affinity and ability to be easily engineered and provide various detection modes in what are known as aptasensors. Our aim is to focus on specialized detection strategies that have gained less attention but are of vital importance, such as optical detection in live cells, fluorescence polarization sensing, multi-analyte detection, colorimetric bioassays, wavelength shifting, and electrochemical-based detection. This will provide us with a perspective to facilitate developments in aptasensor technology for various targets, promising a bright future for biological receptors in the field of biosensing.

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Mediation of Interfacial Mo₂C Bridging Effect in MoS₂@Carbon Colloid Dots Featuring Improved Photovoltaic Performances of Si‐Based Hybrid Solar Cells

Wei,

Chen,

Lin

et al. 2024

Adv Materials Technologies

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Advances in silicon‐based hybrid solar cells with high photovoltaic performance, low synthetic cost, and sound environmental resistance are emerged as potential candidate for solar conversion. Solution‐processed few‐layer MoS2 sheets are regarded as compelling constitutes that paves ways for tailoring the solar harvesting capability; yet the improvement on charge separation of photoexcited carriers remains demanded, and the lack of environmental stability due to intentionally grabbing electrons from adsorbed moistures constrains the scope of practical assessment. In this work, the employment of MoS2/Mo2C/carbon colloid dots (CCDs) heterostructures within PEDOT:PSS matrix is invoked, where the transfer of photoexcited electrons from MoS2 is mediated with Mo2C electron‐transport channels, which further couple out the creation of positive trions by combining with defect‐bound excitons at CCD surfaces. These features dynamically involve with slow recombination probability and further improve the photovoltaic gain. Thus, the noticeable improvement of conversion efficiency of 16.1% with 1.6 times of efficiency enhancement outperforming the bare conventional hybrid solar cells is accomplished, and further exhibits a sound long‐term stability, which opens new avenues for exploiting the photophysical bound‐carrier transition on advanced photovoltaic applications.

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A contemplating review on different synthesis methods of 2D-Molybdenum disulfide (MoS2) nanosheets

Cited by 12 publications

References 104 publications

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Aptamer-Based Optical and Electrochemical Sensors: A Review

Mediation of Interfacial Mo₂C Bridging Effect in MoS₂@Carbon Colloid Dots Featuring Improved Photovoltaic Performances of Si‐Based Hybrid Solar Cells

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A contemplating review on different synthesis methods of 2D-Molybdenum disulfide (MoS2) nanosheets

Cited by 12 publications

References 104 publications

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Silver Nanoparticles Decorated Wide Band Gap MoS2 Nanosheet: Enhanced Optical and Electrical Properties

Aptamer-Based Optical and Electrochemical Sensors: A Review

Mediation of Interfacial Mo2C Bridging Effect in MoS2@Carbon Colloid Dots Featuring Improved Photovoltaic Performances of Si‐Based Hybrid Solar Cells

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Mediation of Interfacial Mo₂C Bridging Effect in MoS₂@Carbon Colloid Dots Featuring Improved Photovoltaic Performances of Si‐Based Hybrid Solar Cells