Fabrication and characterization of direct-written 3D TiO2 woodpile electromagnetic bandgap structures

被引：4
|
作者：
Li Ji-Jiao [1 ]
Li Bo [1 ]
Peng Qin-Mei [1 ]
Zhou Ji [2 ]
Li Long-Tu [2 ]
机构：
[1] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
[2] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
CHINESE PHYSICS B | 2014年 / 23卷 / 09期
关键词：
TiO2; woodpile structure; direct writing; PHOTONIC CRYSTALS; CONVERSION; SCAFFOLDS;
D O I：
10.1088/1674-1056/23/9/098104
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Three groups of three-dimensional (3D) TiO2 woodpile electromagnetic gap materials with tailed rheological properties were developed for direct-written fabrication. Appropriate amount of polyethyleneimine (PEI) dispersants allow the preparation of TiO2 inks with a high solid content of 42 vol.%, which enables them to flow through the nozzles easily. The inks exhibit pseudoplastic behavior. The measured microwave characteristics of the results agree well with simulations based on plane wave expansion (PWE).
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页数：7
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