An investigation of the effect of high-pressure on charge transfer in dye-sensitized solar cells based on surface-enhanced Raman spectroscopy

Pressure-induced surface-enhanced Raman spectroscopy (PI-SERS) has garnered significant attention as a subfield of SERS detection due to its capacity to regulate the band gap between molecules and substrates through pressure modulation. Currently, SERS detection primarily focuses on single molecules at atmospheric pressure with limited investigations conducted under high pressure conditions. Herein, we employed rose-shaped MoS 2 nanoflowers as the SERS substrate and realized selective PI-SERS enhancement of R6G molecules in the binary (MV+R6G) and ternary (MV+R6G+RhB) systems. The MoS 2 demonstrated an exceptionally low SERS detection limit of 5 × 10 −6 M in binary and ternary systems with equimolar amounts of molecules. Highpressure experimental results indicate that MoS 2 displays selective enhancement for R6G molecules, as evidenced by the comparison of the PI-SERS peak intensity ratio between MoS 2 and the probe molecules. The proposed enhancement mechanism in binary and ternary SERS systems under high pressure involves pressureinduced changes in both the band structures of the MoS 2 substrate and molecules, thereby influencing their charge transfer dynamics. Consequently, this approach holds great promise for practical applications in complex SERS systems operating under extreme conditions.

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An investigation of the effect of high-pressure on charge transfer in dye-sensitized solar cells based on surface-enhanced Raman spectroscopy

Abstract: The interfacial charge transfer (CT) that plays an important role in enhancing the photoelectric conversion efficiency of dye-sensitized solar cells (DSSCs) has not always been fully explored. Here, TiO2@N719@Ag DSSCs...

Cited by 4 publications

References 62 publications

A new strategy for improving quantitative detection of SERS: Using CH3NH3PbBr3 as a substrate to narrow the FWHM of adsorbed molecular spectrum

A new strategy for improving quantitative detection of SERS: Using CH3NH3PbBr3 as a substrate to narrow the FWHM of adsorbed molecular spectrum

Exploring the effect of high pressure in the denaturation of casein micelles by in-situ SERS

Selective SERS Sensing of R6G Molecules Using MoS₂ Nanoflowers under Pressure

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An investigation of the effect of high-pressure on charge transfer in dye-sensitized solar cells based on surface-enhanced Raman spectroscopy

Abstract: The interfacial charge transfer (CT) that plays an important role in enhancing the photoelectric conversion efficiency of dye-sensitized solar cells (DSSCs) has not always been fully explored. Here, TiO2@N719@Ag DSSCs...

Cited by 4 publications

References 62 publications

A new strategy for improving quantitative detection of SERS: Using CH3NH3PbBr3 as a substrate to narrow the FWHM of adsorbed molecular spectrum

A new strategy for improving quantitative detection of SERS: Using CH3NH3PbBr3 as a substrate to narrow the FWHM of adsorbed molecular spectrum

Exploring the effect of high pressure in the denaturation of casein micelles by in-situ SERS

Selective SERS Sensing of R6G Molecules Using MoS2 Nanoflowers under Pressure

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Product

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Selective SERS Sensing of R6G Molecules Using MoS₂ Nanoflowers under Pressure