Exalted Electric Output via Piezoelectric-Triboelectric Coupling/Sustainable Butterfly Wing Structure Type Multiunit Hybrid Nanogenerator

被引:53
作者
Alluri, Nagamalleswara Rao [1 ]
Chandrasekhar, Arunkumar [2 ]
Kim, Sang-Jae [2 ]
机构
[1] Jeju Natl Univ, Sch Appl Energy Syst, Nanomat & Syst Lab, Mech Engn, D130,Ara l Dong, Jeju Si 63243, Jeju Do, South Korea
[2] Jeju Natl Univ, Dept Mechatron Engn, Nanomat & Syst Lab, D130,Ara l Dong, Jeju Si 63243, Jeju Do, South Korea
基金
新加坡国家研究基金会;
关键词
0.3BCT-0.7BST nanoparticles; Piezoelectric-triboelectric nanogenerator; Self-powered air pressure sensor; Surface charge density; Surface modification; SURFACE-CHARGE DENSITY; CONTACT ELECTRIFICATION; PERFORMANCE; EFFICIENCY; POWER; PDMS;
D O I
10.1021/acssuschemeng.7b03337
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The scalable synthesis of an irregular composite surface impregnated with high-performance piezoelectric 0.3Ba(0.7)Ca(0.3)TiO(3)-0.7BaSn(0.12)Ti(0.88)O(3) nanoparticles (0.3BCT-0.7BST NPs) for enhancing the power density of hybrid nanogenerators (H-NGs) using a contact-separation structure is reported for the first time. The designed high-performance butterfly wing structure type multiunit system, consisting of four simple arc-shaped H-NGs, has dual functionality as a stand-alone power source for light-emitting diodes and charging Li coin cells and as a self-powered air pressure sensor. Manyfold increments of the open-circuit voltage (Voc(p-p) = 572 V) and short-circuit current (Isc(p-p) = 1.752 mA) were observed for H-NG with an irregular surface compared with a piezoelectric nanogenerator (P-NG) (VOC(p-p) = 53 V, Isc(p-p) = 2.366 mu A). Compared with the power density of a flat surface based H-NG (333 W/m(2)), the power density of a single arc-shaped H-NG with an irregular surface was 4-fold higher at 1336 W/m(2), and that with a micropillar surface was twice as high (632 W/m(2)). A high functional property of fillers along with polydimethylsiloxane matrix improves the surface charge density of the composite film. The surface charge density of the H-NG was greatly influenced by the distance between the active layers, micropores, thickness, relative permittivity, and applied force.
引用
收藏
页码:1919 / 1933
页数:15
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