Transient absorption study on fluorescence quenching of InP/ZnS quantum dots by MXene

Wu, Ruixiang; Liu, Xin; Wang, Xiaoshuai; Guo, Fengjie; Wang, Shengzhi; Li, Bin; Cheng, Liu-Yong; Miao, Xiangyang

doi:10.1016/j.saa.2023.123359

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2024

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Cited by 4 publications

References 48 publications

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Construction of rutile/anatase Ohmic heterojunction of TiO2/Ti3C2 with robust built-in electric field for boosting photocatalytic organic pollutant and hydrogen evolution

Qin,

Ji,

Zhu

2024

Applied Surface Science

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Construction of rutile/anatase Ohmic heterojunction of TiO2/Ti3C2 with robust built-in electric field for boosting photocatalytic organic pollutant and hydrogen evolution

Qin,

Ji,

Zhu

2024

Applied Surface Science

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Biocompatible InP/ZnSeS quantum dots/MXene composite as highly sensitive electrochemical sensors for carbendazim pesticide

Sharma,

Jana,

Sivaselvam

et al. 2024

Applied Surface Science

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Appropriate handling of fluorescence spectra for accurate spectral overlap (J) values in Förster energy transfer (FRET) calculations

Taniguchi,

Du,

Lindsey

2024

SPIE Future Sensing Technologies 2024

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Fluorescence (or Förster) resonance energy transfer (FRET) describes the flow of energy from a donor fluorophore to an acceptor chromophore. Among the parameters in determining FRET efficiency is the donor-acceptor energy matching, given by the overlap of the donor fluorescence spectrum and the acceptor absorption spectrum (J value). Calculations of the J value typically rely on experimentally acquired spectra. When a fluorescence spectrum is converted from the wavelength (nm) scale to the wavenumber (cm -1 ) scale, the Y-axis intensity needs to be corrected by the square of the wavelength (termed the l 2 correction), because fluorescence spectra (but not absorption spectra) are collected with a fixed wavelength bandpass. The l 2 correction causes the peak intensity of the short-wavelength (long-wavenumber) side of the fluorescence spectrum to decrease, or the peak intensity of the long-wavelength (short-wavenumber) side to increase. This issue has been known for >60 years but the impact remains little appreciated. The relatively new availability of libraries of spectral data enabled assessment here of the l 2 correction for various donor-acceptor pairs (i.e., donor fluorescence spectra and acceptor absorption spectra). The magnitude of error introduced upon omitting the l 2 correction increases with the width of the spectra. A meta-analysis of recent literature reveals trends in usage of wavenumber or wavelength scales. While either scale can be used, errors in calculating the ostensibly simple J term are not uncommon. Best methods are articulated here. The software program PhotochemCAD 3, which incorporates the l 2 correction for FRET calculations and also contains diverse spectral libraries, is freely downloadable at www.photochemcad.com.

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Transient absorption study on fluorescence quenching of InP/ZnS quantum dots by MXene

Cited by 4 publications

References 48 publications

Construction of rutile/anatase Ohmic heterojunction of TiO2/Ti3C2 with robust built-in electric field for boosting photocatalytic organic pollutant and hydrogen evolution

Construction of rutile/anatase Ohmic heterojunction of TiO2/Ti3C2 with robust built-in electric field for boosting photocatalytic organic pollutant and hydrogen evolution

Biocompatible InP/ZnSeS quantum dots/MXene composite as highly sensitive electrochemical sensors for carbendazim pesticide

Appropriate handling of fluorescence spectra for accurate spectral overlap (J) values in Förster energy transfer (FRET) calculations

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