Yuan, Yucheng published the artcileReversible photo-switching of dual-color fluorescent Mn-doped CdS-ZnS quantum dots modulated by diarylethene molecules, Quality Control of 219537-97-0, the publication is Frontiers in Chemistry (Lausanne, Switzerland) (2019), 145pp., database is CAplus and MEDLINE.
A highly reversible dynamic hybrid system was established by mixing dual-color emitting Mn-doped CdS-ZnS quantum dots (QDs) with photo-switchable diarylethene mols. The diarylethene 1,2-bis(5-(3,5-bis(trifluoromethyl)phenyl)-2-methylthiophen-3-yl)cyclopent-1-ene I performed fabulous photo-switching property and high fatigue resistance in this hybrid system. The emission color switching between blue and pink of the system can be induced mainly by selective quenching/recovering of the Mn- photoluminescence (PL) of the QDs due to the switchable absorbance of the mol. I. Mechanistic studies showed that quenching of QD emission following UV illumination was caused by both Forster resonance energy transfer (FRET) and reabsorption by surrounding II mols. in the case of the Mn-PL and solely by reabsorption in the case of badngap-(BG-)PL. This photo-switchable system could be potentially used in applications ranging from self-erasing paper to super-resolution fluorescence imaging.
Frontiers in Chemistry (Lausanne, Switzerland) published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C8H4ClF3O, Quality Control of 219537-97-0.
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