Unidirectional High-Power Generation via Stress-Induced Dipole Alignment from ZnSnO3 Nanocubes/Polymer Hybrid Piezoelectric Nanogenerator

被引:265
作者
Lee, Keun Young [1 ]
Kim, Dohwan [2 ]
Lee, Ju-Hyuck [2 ]
Kim, Tae Yun [2 ]
Gupta, Manoj Kumar [1 ]
Kim, Sang-Woo [1 ,2 ]
机构
[1] Sungkyunkwan Univ SKKU, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea
[2] SKKU, Adv Inst Nanotechnol SAINT, Ctr Human Interface Nanotechnol HINT, Suwon 440746, South Korea
基金
新加坡国家研究基金会;
关键词
nanostructures; hybrid nanocomposites; energy harvesting; piezoelectric nanogenerators; stress-induced alignment; unidirectional power generation; LEAD-FREE; POLARIZATION; NANOWIRES; COMPOSITE;
D O I
10.1002/adfm.201301379
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The extremely stable high-power generation from hybrid piezoelectric nanogenerator (HP-NG) based on a composite of single-crystalline piezoelectric perovskite zinc stannate (ZnSnO3) nanocubes and polydimethylsiloxane without any electrical poling treatment is reported. The HP-NG generates large power output under only vertical compression, while there is negligible power generation with other configurations of applied strain, such as bending and folding. This unique high unidirectionality of power generation behavior of the HP-NG provides desirable features for large-area piezoelectric power generation based on vertical mechanical compression such as moving vehicles, railway transport, and human walking. The HP-NGs of ZnSnO3 nanocubes exhibit high mechanical durability, excellent robustness, and high power-generation performance. A large recordable output voltage of about 20 V and an output current density value of about 1 A cm(-2) are successfully achived, using a single cell of HP-NG obtained under rolling of a vehicle tire.
引用
收藏
页码:37 / 43
页数:7
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