Nanoscopic photoluminescence memory as a fingerprint of complexity in self-assembled alkyl/siloxane hybrids
Journal article, 2007
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).
METAL ACTIVATOR IONS
LIGHT EMISSION
INFRARED TEMPERATURE
SILICATES
HYDROLYSIS
BRIDGED SILSESQUIOXANES
LONG
MONOLAYERS
POLYMERS
PHOSPHORS
Author
L. D. Carlos
V. D. Bermudez
V. S. Amaral
S. C. Nunes
N. J. O. Silva
R. A. S. Ferreira
J. Rocha
C. V. Santilli
Denis Ostrovskii
Chalmers, Applied Physics, Condensed Matter Physics
Advanced Materials
09359648 (ISSN) 15214095 (eISSN)
Vol. 19 3 341-348Subject Categories
Other Engineering and Technologies
DOI
10.1002/adma.200601435