Nanoscopic photoluminescence memory as a fingerprint of complexity in self-assembled alkyl/siloxane hybrids
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Data
2007-02-05
Autores
Carlos, Luis D.
Bermudez, Veronica de Zea
Amaral, Vitor S.
Nunes, Silvia C.
Silva, Nuno J. O.
Ferreira, Rute A. Sa
Rocha, Joao
Santilli, Celso Valentim [UNESP]
Ostrovskii, Denis
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Wiley-Blackwell
Resumo
A thermally activated photoluminescence memory effect, induced by a reversible order-disorder phase transition of the alkyl chains, is reported for highly organized bilayer alkyl/siloxane hybrids (see figure; left at room temperature, right at 120 degrees C). The emission energy is sensitive to the annihilation/formation of the hydrogen-bonded amide-amide array displaying a unique nanoscopic sensitivity (ca. 150 nm).
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Advanced Materials. Weinheim: Wiley-v C H Verlag Gmbh, v. 19, n. 3, p. 341-+, 2007.