Nanoscopic photoluminescence memory as a fingerprint of complexity in self-assembled alkyl/siloxane hybrids

被引:79
作者
Carlos, Luis D. [1 ]
Bermudez, Veronica de Zea
Amaral, Vitor S.
Nunes, Silvia C.
Silva, Nuno J. O.
Ferreira, Rute A. Sa
Rocha, Joao
Santilli, Celso V.
Ostrovskii, Denis
机构
[1] Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal
[2] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal
[3] Univ Tras Os Montes & Alto Douro, Dept Quim, P-500801 Vila Real, Portugal
[4] Univ Tras Os Montes & Alto Douro, CQ VR, P-500801 Vila Real, Portugal
[5] Univ Aveiro, Dept Quim, P-3810193 Aveiro, Portugal
[6] UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
[7] Chalmers, Dept Appl Phys, S-41296 Gothenburg, Sweden
关键词
D O I
10.1002/adma.200601435
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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).
引用
收藏
页码:341 / +
页数:9
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