期刊
CHEMISTRY OF MATERIALS
卷 21, 期 16, 页码 3883-3888出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm900829g
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资金
- BMBF [13N8635]
A new method for the preparation of rare-earth doped inverse opal materials is reported. Template structures consisting of ordered stacks of PMMA-spheres were infiltrated with colloidal solutions of luminescent LaPO4:Ln (Ln = Tb3+, Eu3+) nanocrystals containing a small amount of prehydrolyzed tetramethoxysilane as binder. After calcination of the PMMA-template, light-emitting, photonic materials with inverse opal structure are obtained, Under UV-excitation the materials display the characteristic luminescence line emission of the lanthanide component. We show that by adjusting the diameter of the PMMA-spheres of the template the photonic band structure of the material can be controlled in a way that modifies the lanthanide luminescence.
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