Toward Two-Photon Absorbing Dyes with Unusually Potentiated Nonlinear Fluorescence Response

被引：20

作者：

Benitez-Martin, Carlos ^{[1
,2
,3
]}

Li, Shiming ^{[1
]}

Dominguez-Alfaro, Antonio ^{[4
,5
]}

Najera, Francisco ^{[2
,3
]}

Perez-Inestrosa, Ezequiel ^{[2
,3
]}

Pischel, Uwe ^{[4
,5
]}

Andreasson, Joakim ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Chem & Chem Engn, Phys Chem, SE-41296 Gothenburg, Sweden

[2] Univ Millaga IBIMA, Dept Quim Organ, E-29071 Malaga, Spain

[3] Ctr Andaluz Nanomed & Biotecnol BIONAND, Parque Tecnol Andalucia, E-29590 Malaga, Spain

[4] Univ Huelva, CIQSO Ctr Res Sustainable Chem, E-21071 Huelva, Spain

[5] Univ Huelva, Dept Chem, E-21071 Huelva, Spain

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2020年 / 142卷 / 35期

基金：

瑞典研究理事会;

关键词：

BLUE PHOTOLUMINESCENCE; STIMULATED-EMISSION; 4-PHOTON EXCITATION; ENERGY-TRANSFER; 3-PHOTON; ABSORPTION; PHOTOCHROMISM; MODULATION; MOLECULES; MEMORIES;

D O I：

10.1021/jacs.0c07377

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The combination of two two-photon-induced processes in a Forster resonance energy transfer (FRET)-operated photochromic fluorene-dithienylethene dyad lays the foundation for the observation of a quartic dependence of the fluorescence signal on the excitation light intensity. While this photophysical behavior is predicted for a four-photon absorbing dye, the herein proposed approach opens the way to use two-photon absorbing dyes, reaching the same performance. Hence, the spatial resolution limit, being a critical parameter for applications in fluorescence imaging or data storage with common two-photon absorbing dyes, is dramatically improved.

引用

页码：14854 / 14858

页数：5

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