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  4. 奈米光粒子合成、能隙晶體結構製作與應用─子計劃一:奈米發光膠粒合成與粒間作用研究(2/2)
 
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奈米光粒子合成、能隙晶體結構製作與應用─子計劃一:奈米發光膠粒合成與粒間作用研究(2/2)

Date Issued
2003
Date
2003
Author(s)
韋文誠  
DOI
912120E002009
URI
http://ntur.lib.ntu.edu.tw//handle/246246/12426
Abstract
The objectives of this study are to synthesize SiO2 core/TiO2 shell and luminescence SrIn2O4 spherical particles, to understand the interparticle forces, and to assemble photonic crystals so to reveal the band gap properties. Nano-sized and homogeneous TiO2 was prepared from the reaction of Ti alkoxide (TBOT) with the water provided by the esterification of butanol and acetic acid. SrIn2O4 was synthesis from nitrate solution. The configurations of the SiO2/TiO2 particles and the microstructure of assembly were characterized by SEM, AFM, and TEM. In addition, the PBG crystals were measured by reflective spectrometer and the particles by ζ-meter, respectively. With the addition of three polymers PMAA-NH4, DAAE, and PVP dispersive role was investigated. The silica/titania core-shell structure could filter the visible light near 500 nm, and sharper the 600 nm spectrum comparing to that of the PBG crystal assembled by mono-silica particles.
Subjects
sol-gel method
SiO2
TiO2
SrIn2O4 self-assembly
mono-size
PBG crystal
Publisher
臺北市:國立臺灣大學材料科學與工程學研究所
Type
report
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912120E002009.pdf

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