Liquid phase exfoliation of MoS<sub>2</sub> and WS<sub>2</sub> in aqueous ammonia and their application in highly efficient organic solar cells

Adilbekova, Begimai; Lin, Yuanbao; Yengel, Emre; Faber, Hendrik; Harrison, George T.; Firdaus, Yuliar; Labban, Abdulrahman El; Anjum, Dalaver H.; Tung, Vincent; Anthopoulos, Thomas D.

doi:10.1039/d0tc00659a

Cited by 132 publications

(90 citation statements)

References 37 publications

(101 reference statements)

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“…[ 37 ] AFM analysis (Figure S3, Supporting Information) indicates thickness range of 3–4 nm of the WS 2 domains, corresponding to 2–6 exfoliated layers. [ 38 ]…”

Section: Resultsmentioning

confidence: 99%

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Adhikari

Shauloff

Shalish

et al. 2021

Adv Elect Materials

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Transition metal dichalcogenides are considered promising constituents in energy storage devices due to their large surface areas, 2D sheet structures, and occurrence of efficient redox reactions at their surfaces. Supercapacitors comprising WS2‐polyaniline (PANI) composite electrodes which exhibit excellent electrochemical properties, particularly effective high frequency response, are constructed. The highly porous WS2‐PANI device facilitate rapid ion transport and surface access, aiding rapid reversible redox reactions contributing to the high frequency pseudocapacitive profile of the device. The symmetric WS2‐PANI supercapacitor displays significantly higher capacitance of 180 µF cm−2 at a frequency of 120 Hz. This study points to potential application of WS2 composites in high frequency applications such as alternating current line filtering, and may open new avenues for employing the material in energy storage applications.

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“…[ 37 ] AFM analysis (Figure S3, Supporting Information) indicates thickness range of 3–4 nm of the WS 2 domains, corresponding to 2–6 exfoliated layers. [ 38 ]…”

Section: Resultsmentioning

confidence: 99%

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Adhikari

Shauloff

Shalish

et al. 2021

Adv Elect Materials

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“…Note that the lateral sizes of 161, 67, and 10 nm corresponded to the thicknesses of 18.3 (multilayer), 5.1 (few‐layer), and 1.0 nm (1–2 layers), respectively. Evidently, the shifting of both peaks of E 1 2g mode (in‐plane vibrations) and A 1g mode (out‐of‐plane vibrations) [ 33–35 ] could be used as the indicator for the reduction in both lateral sizes and thicknesses of the NSs. The crystalline structures of the MoS 2 NSs were further confirmed by X‐ray diffraction (XRD).…”

Section: Figurementioning

confidence: 99%

Controlled Production of MoS₂ Full‐Scale Nanosheets and Their Strong Size Effects

Cheng

Sui

Wang

et al. 2020

Adv Materials Inter

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The production of 2D nanosheets (2D NSs) with all sizes (1–100 nm) and few (<10) layers is highly desired but remains great challenge. Herein, the top‐down production of molybdenum disulfide (MoS2) NSs with wide‐range (161–10 nm) controlled sizes is reported. Considering the recently achieved MoS2 quantum sheets (QSs) with sizes of ≈2 nm, full‐scale NSs of MoS2 are successfully produced. The top‐down method combines silica‐assisted ball‐milling and sonication‐assisted solvent exfoliation. Ball‐milling with controlled time enables the production of multiscale NSs with varying distributions, which are then precisely separated by cascade centrifugation. Multiple spectroscopic techniques reveal the dramatic size dependence, indicating prominent quantum confinement and edge effects of the MoS2 NSs. The NSs‐poly(methyl methacrylate) (PMMA) hybrid thin films demonstrate strong size effects in nonlinear saturation absorption (NSA). Both (absolute) modulation depths and saturation intensities can be broadly modulated by simple variation of the NS sizes. With the sizes down from 161 to 10 nm, the modulation depths are increased from 27.0% to 51.3% and the saturation intensities are decreased from 33 419 to 21.2 kW cm−2 (3341.9–2.12 nJ cm−2). The work greatly facilitates the mass production and full exploration of 2D NSs with all sizes.

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“…Two-dimensional materials are ideal for use as an additive to the interfacial layer due to their large surface areas and excellent electronic and optical properties. In particular, transition metal dichalcogenides (TMD) have attracted considerable attention owing to their exciting optoelectronic properties, bipolar charge transport, chemical stability, and direct bandgap in a single layer form [ 59 ]. However, it is difficult to control the thickness and scalable production of TMDs, which limit their application in OSCs.…”

Section: Mofs In Solar Cellsmentioning

confidence: 99%

Metal-Organic Framework Materials for Perovskite Solar Cells

et al. 2020

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Metal-organic frameworks (MOFs) and MOF-derived materials have been used for several applications, such as hydrogen storage and separation, catalysis, and drug delivery, owing to them having a significantly large surface area and open pore structure. In recent years, MOFs have also been applied to thin-film solar cells, and attractive results have been obtained. In perovskite solar cells (PSCs), the MOF materials are used in the form of an additive for electron and hole transport layers, interlayer, and hybrid perovskite/MOF. MOFs have the potential to be used as a material for obtaining PSCs with high efficiency and stability. In this study, we briefly explain the synthesis of MOFs and the performance of organic and dye-sensitized solar cells with MOFs. Furthermore, we provide a detailed overview on the performance of the most recently reported PSCs using MOFs.

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Liquid phase exfoliation of MoS₂ and WS₂ in aqueous ammonia and their application in highly efficient organic solar cells

Abstract: Simple, scalable and cost-effective synthesis of quality two-dimensional (2D) transition metal dichalcogenides (TMDs) is critical for fundamental investigations but also for the widespread adoption of these low-dimensional materials in an expanding range of device applications.

Cited by 132 publications

References 37 publications

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Controlled Production of MoS₂ Full‐Scale Nanosheets and Their Strong Size Effects

Metal-Organic Framework Materials for Perovskite Solar Cells

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Liquid phase exfoliation of MoS2 and WS2 in aqueous ammonia and their application in highly efficient organic solar cells

Abstract: Simple, scalable and cost-effective synthesis of quality two-dimensional (2D) transition metal dichalcogenides (TMDs) is critical for fundamental investigations but also for the widespread adoption of these low-dimensional materials in an expanding range of device applications.

Cited by 132 publications

References 37 publications

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors

Controlled Production of MoS2 Full‐Scale Nanosheets and Their Strong Size Effects

Metal-Organic Framework Materials for Perovskite Solar Cells

Contact Info

Product

Resources

About

Liquid phase exfoliation of MoS₂ and WS₂ in aqueous ammonia and their application in highly efficient organic solar cells

Controlled Production of MoS₂ Full‐Scale Nanosheets and Their Strong Size Effects