Work function and energy level alignment tuning at 
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 MXene surfaces and interfaces using (metal-)organic donor/acceptor molecules

Schultz, Thorsten; Bärmann, Peer; Longhi, Elena; Meena, Rahul; Geerts, Yves; Gogotsi, Yury; Barlow, Stephen; Marder, Seth R.; Petit, Tristan; Koch, Norbert

doi:10.1103/physrevmaterials.7.045002

Cited by 5 publications

(1 citation statement)

References 68 publications

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“…Apart from other 2D materials, MXenes are newly discovered carbides, nitrides, and carbo nitrides which gained a lot of attention due to their unique electrical, mechanical, and optical properties. , The strong localized SPR (LSPR) of MXene makes it suitable for SERS application. − After the discovery of MXene in 2011 by Gogotsi et al, Ti 3 C 2 T x was largely studied among several other MXenes like V 2 CT x , Nb 2 CT x , Ti 2 CT x , Ti 2 NT x etc. The composite of Ti 3 C 2 T x MXene with PVDF was mostly explored in the fields of nanogenerators, electromagnetic shielding (EMI), and photovoltaic applications. − …”

Section: Introductionmentioning

confidence: 99%

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Pramanik,

Limaye,

Sharma

et al. 2024

ACS Appl. Mater. Interfaces

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In this study, we introduce a synergistic approach to enhance the surface-enhanced Raman scattering (SERS) signal in two-dimensional (2D) MXene through photo-irradiation and electric field modulation. Our methodology involves the integration of 2D Ti3C2T x MXene with piezoelectric polyvinylidene fluoride (PVDF) polymer, resulting in the creation of a free-standing, flexible composite film. On this composite film, a thin layer of Au was deposited. Our flexible substrate was able to sense methylene blue (MB), crystal violet (CV), 4-aminothiophenol (ATP), and melamine. The SERS substrate exhibits low detection limit of 10–8 M MB with a 6.7 × 106 enhancement factor (EF). The SERS substrate enables picomolar (pM) detection sensitivity for CV molecules with an EF of 9.2 × 109. Furthermore, the introduction of photo-irradiation leads to an additional ∼3.5-fold enhancement in the SERS signal, which is attributed to the altered work function and defects. The application of mechanical force to the piezoelectric PVDF/Ti3C2T x film results in a ∼4.5-fold boost in SERS signal due to mechanical force-induced electrical energy. The fabrication strategy employed here for producing a flexible piezoelectric PVDF/Ti3C2T x film holds significant promise for expanding the potential application of 2D MXene in rapid, on-site sensing scenarios.

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Section: Introductionmentioning

confidence: 99%

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Pramanik,

Limaye,

Sharma

et al. 2024

ACS Appl. Mater. Interfaces

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Effect of the synthesis route and Co Coverage on Co / Ti3C2Tx materials for the oxygen evolution reaction

Kaplan,

Restrepo,

Schultz

et al. 2024

Electrochimica Acta

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A self-powered and flexible deep ultraviolet photodetector based on NiO/Ga2O3 heterojunction and employing stable MXene electrodes

Amari,

AL-Zoubi,

Bansal

et al. 2024

Sensors and Actuators A: Physical

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Work function and energy level alignment tuning at Ti3C2Tx MXene surfaces and interfaces using (metal-)organic donor/acceptor molecules

Cited by 5 publications

References 68 publications

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Effect of the synthesis route and Co Coverage on Co / Ti3C2Tx materials for the oxygen evolution reaction

A self-powered and flexible deep ultraviolet photodetector based on NiO/Ga2O3 heterojunction and employing stable MXene electrodes

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Work function and energy level alignment tuning at Ti3C2Tx MXene surfaces and interfaces using (metal-)organic donor/acceptor molecules

Cited by 5 publications

References 68 publications

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti3C2Tx MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti3C2Tx MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Effect of the synthesis route and Co Coverage on Co / Ti3C2Tx materials for the oxygen evolution reaction

A self-powered and flexible deep ultraviolet photodetector based on NiO/Ga2O3 heterojunction and employing stable MXene electrodes

Contact Info

Product

Resources

About

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation

Improved Surface-Enhanced Raman Scattering Performance of 2D Ti₃C₂T_x MXene Embedded in PVDF Film Enabled by Photoinduction and Electric Field Modulation