Emission modulation of fluorescent turn-on mode dibenzothienyl sulfonyl ethene photoswitches embedded in a polymer film

被引：3

作者：

Albert, Andrea ^{[1
]}

Fried, Martina ^{[2
]}

Thelakkat, Mukundan ^{[2
,3
,4
]}

Koehler, Juergen ^{[1
,3
,4
]}

机构：

[1] Univ Bayreuth, Spect Soft Matter, D-95440 Bayreuth, Germany

[2] Univ Bayreuth, Appl Funct Mat, D-95440 Bayreuth, Germany

[3] Univ Bayreuth, Bavarian Polymer Inst, D-95440 Bayreuth, Germany

[4] Bayreuther Inst Makromolekulforsch BIMF, D-95440 Bayreuth, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2022年 / 24卷 / 48期

关键词：

PHOTOCHROMIC DIARYLETHENE; NONDESTRUCTIVE READOUT; MEMORIES; MOLECULES; DERIVATIVES; CRYSTALS; STATE;

D O I：

10.1039/d2cp05062e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

For decades photochromic molecules have attracted attention for their potential in using light as an external stimulus to change their photophysical properties. Here we report the spectroscopic characterization of two emissive photochromic molecules that are intrinsically fluorescent and that undergo a photocyclization/cycloreversion reaction upon illumination with light in the UV and VIS spectral ranges. For appropriately adjusted illumination intensities the emission can be modulated between the high- and the low-level with a contrast ratio exceeding 80%. The data are in reasonable agreement with the predictions from a simple kinetic model.

引用

页码：29791 / 29800

页数：10

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