Song, Hyun-Cheol Kim, Hyung-Chan Kang, Chong-Yun Kim, Hyun-Jai Yoon, Seok-Jin Jeong, Dae-Yong 2024-01-20T20:34:04Z 2024-01-20T20:34:04Z 2021-09-04 2009-10 1385-3449 https://pubs.kist.re.kr/handle/201004/132129 Piezoelectric energy harvesting system is promising to the energy source of wireless sensor nodes for ubiquitous sensor networks. The piezoelectric material has been usually considered as a high voltage and low current source. When charging current into the thin film battery or supercapacitor, a larger current is needed to shorten the charging time. In order to increase the current in the piezoelectric energy harvesting, multilayer ceramics were fabricated. N-layer multilayer ceramics decreased the voltage but increased the current N times. The impedance of the multilayer ceramics are matched to 1 k Omega which is similar to the impedance of general electrical devices. The multilayer piezoelectric generator could be directly employed for electrical device without the additional electrical circuit to improve efficiency. English SPRINGER Multilayer piezoelectric energy scavenger for large current generation Article 10.1007/s10832-008-9439-9 1 JOURNAL OF ELECTROCERAMICS, v.23, no.2-4, pp.301 - 304 JOURNAL OF ELECTROCERAMICS 23 2-4 301 304 scie scopus 000271982300038 2-s2.0-73449127632 Materials Science, Ceramics Materials Science Article Piezoelectric Energy harvesting Multilayer Current Impedance matching