Nanophotonic Switch: Gold-in-Ga2O3 Peapod Nanowires

被引：113
作者：
Hsieh, Chin-Hua [1 ]
Chou, Li-Jen [1 ]
Lin, Gong-Ru [2 ,3 ]
Bando, Yoshio [4 ,5 ]
Golberg, Dimitri [4 ,5 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 106, Taiwan
[3] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan
[4] Natl Inst Mat Sci, Nanoscale Mat Ctr, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
[5] Natl Inst Mat Sci, Nanoscale Mat Ctr, Nanomat Lab, Tsukuba, Ibaraki 3050044, Japan
来源：
NANO LETTERS | 2008年 / 8卷 / 10期
关键词：
D O I：
10.1021/nl0731567
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel metal-insulator heterostructure made of twinned Ga2O3 nanowires embedding discrete gold particles along the twin boundary was formed through a reaction between gold, gallium, and silica at 800 degrees C during simple thermal annealing. The Au-in-Ga2O3 peapods spontaneously crystallized under phase separation induced by the formation of twin boundaries. The nanostructures were analyzed by field emission scanning (FESEM) and transmission electron microscopes (FETEM), and their photoresponse was investigated using a double-frequency Nd:YAG laser with a wavelength of 532 nm on a designed single-nanowire device. The surface plasmon resonance (SPR) effects of embedded Au nanoparticles are proposed to be responsible for the remarkable photoresponse of these novel structures.
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收藏
页码：3081 / 3085
页数：5
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