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Kelley AM, Kelley DF. Comment on "Dependence of the Fluorescent Lifetime τ on the Concentration at High Dilution". J Phys Chem Lett 2022; 13:11942-11945. [PMID: 36579438 DOI: 10.1021/acs.jpclett.2c02677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A recent Letter in this Journal (Langhals and Schlücker, J. Phys. Chem. Lett. 202213, 7568-7573) reported a dependence of the fluorescence lifetime of a dye on concentration and attributed it to "electromagnetic interactions with distant resonating structures" on a length scale of more than 100 nm. We show that their results can be explained as a straightforward result of absorption and re-emission of the fluorescence ("radiative energy transport"), which lengthens the apparent lifetime at higher concentrations. This effect has been well-documented in the literature many times. We show that simulations of the fluorescence decays accounting for radiative transport can reproduce the authors' results without postulating any new electromagnetic mechanism.
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Affiliation(s)
- Anne Myers Kelley
- Department of Chemistry and Biochemistry, University of California, Merced, 5200 North Lake Road, Merced, California95343, United States
| | - David F Kelley
- Department of Chemistry and Biochemistry, University of California, Merced, 5200 North Lake Road, Merced, California95343, United States
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Khrebtov AA, Fedorenko EV, Reutov VA, Mirochnik AG, Lim LA. Self-Absorption Effect in Polymer Films Doped with Difluoroboron β-Diketonates. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422080118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Krimer NI, Rodrigues D, Rodríguez HB, Mirenda M. Steady-State Fluorescence of Highly Absorbing Samples in Transmission Geometry: A Simplified Quantitative Approach Considering Reabsorption Events. Anal Chem 2016; 89:640-647. [DOI: 10.1021/acs.analchem.6b02819] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicolás I. Krimer
- Gerencia Química,
Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica (CNEA-CONICET), Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
| | - Darío Rodrigues
- Gerencia Química,
Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica (CNEA-CONICET), Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
| | - Hernán B. Rodríguez
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA, UNLP-CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, (1900) La Plata, Argentina
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, C1428EHA, Buenos Aires, Argentina
| | - Martín Mirenda
- Gerencia Química,
Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica (CNEA-CONICET), Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, C1428EHA, Buenos Aires, Argentina
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