Synthesis, characterization and optical properties of Eu2O3 mesoporous thin films

被引：34

作者：

Castro, Yolanda

Julian, Beatriz

Boissiere, Cedric

Viana, Bruno

Amenitsch, Heinz

Grosso, David

Sanchez, Clement

机构：

[1] Univ Paris 06, UMR CNRS 7574, Lab Chim Mat Condensee, F-75252 Paris, France

[2] Austrian Acad Sci, Inst Biophys & Xray Struct Res, A-8010 Graz, Austria

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 05期

关键词：

D O I：

10.1088/0957-4484/18/5/055705

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

For the first time, nanocrystalline Eu2O3 thin films, exhibiting similar to 50% of porous volume, highly accessible mesoporosity, pore diameter of about 10 nm, and thermal stability up to 830 degrees C, were prepared using the evaporation-induced self-assembly ( EISA) process from europium ( III) chloride and specific polyethylene oxide based copolymer structuring agent. Crystallization of the inorganic network was achieved through a controlled thermal treatment sequence that was followed by in situ time-resolved SAXS/WAXS analysis involving synchrotron radiation. Atomic force microscopy ( AFM) and x-ray diffraction ( XRD) were used to complete the characterization of the crystallization of the film. Porous structures were additionally analysed by transmission electron microscopy ( TEM), and environmental ellipsometry porosimetry ( EEP), while the composition of the films was characterized by Rutherford back-scattering ( RBS). Finally, the luminescence properties of these layers were investigated.

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页数：7

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