Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports

被引：3
|
作者：
Kim, Kyung Bum [1 ]
Nahm, San [1 ]
Sung, Tae Hyun [2 ]
Paik, Jong Hoo [3 ]
Kim, Hyoung Jae [4 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea
[2] Hanyang Univ, Dept Elect Engn, Seoul 04763, South Korea
[3] Korea Inst Ceram Engn & Technol, Elect & Mat Ceram Div, Seoul 08516, South Korea
[4] Korea Inst Ind Technol, Dongnam Div, Busan 46742, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2016年 / 68卷 / 11期
关键词：
Piezoelectric; Energy-harvesting; Spring; Unimorph Cantilevers; THICK-FILMS; SENSOR;
D O I：
10.3938/jkps.68.1262
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We fabricated a spring-supported piezoelectric unimorph cantilever (SPUC) with enhanced energy-harvesting characteristics by using a 0.69Pb(Zr0.47Ti0.53)O-3-0.31Pb(Ni0.6Zn0.4)(1/3)Nb-2/3)O-3 + CuO (0.5 mol%) thick film sintered at 950 A degrees C; a spring having a spring constant of 14,320 N/m was used as the cantilever support. The SPUC could generate an output power as high as 29 mW with a spring constant of 14,320 N/m across a resistance of 150 k Omega; this corresponded to a power density of 34 mW/cm(3). We, therefore, that the thus-fabricated SPUCs when supported by a spring can harvest increased levels of energy.
引用
收藏
页码：1262 / 1266
页数：5
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