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)
DOI
912120E002009
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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