TY - JOUR
T1 - Photo-induced reversible emission switching in pyridine/europium(III) chloride/organic fluorophore system
AU - Vaganova, Evgeniya
AU - Yitzchaik, Shlomo
AU - Shapiro, Lev
AU - Sigalov, Mark
AU - Khodorkovsky, Vladimir
PY - 2000/11/16
Y1 - 2000/11/16
N2 - A blue-red reversible optical switch was created by combining EuIII, pyridine, and a fluorescent organic chromophore. In the initial stage Ch-EuIII interaction was responsible for the EuIII emission quenching. The irradiation of pyridine brought about its protonation and formation of the hydrogen-bonded aggregates. The high electron-accepting ability of pyridinium cations lead to donor-acceptor interaction with the chromophore, and quenching of fluorescence in the presence of the EuCl3 or (Et)4NCl.
AB - A blue-red reversible optical switch was created by combining EuIII, pyridine, and a fluorescent organic chromophore. In the initial stage Ch-EuIII interaction was responsible for the EuIII emission quenching. The irradiation of pyridine brought about its protonation and formation of the hydrogen-bonded aggregates. The high electron-accepting ability of pyridinium cations lead to donor-acceptor interaction with the chromophore, and quenching of fluorescence in the presence of the EuCl3 or (Et)4NCl.
UR - http://www.scopus.com/inward/record.url?scp=0034316469&partnerID=8YFLogxK
U2 - 10.1002/1521-4095(200011)12:22<1669::AID-ADMA1669>3.0.CO;2-D
DO - 10.1002/1521-4095(200011)12:22<1669::AID-ADMA1669>3.0.CO;2-D
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AN - SCOPUS:0034316469
SN - 0935-9648
VL - 12
SP - 1669
EP - 1671
JO - Advanced Materials
JF - Advanced Materials
IS - 22
ER -