Self-powered cardiac pacemaker enabled by flexible single crystalline PMN-PT piezoelectric energy harvester

Geon-Tae Hwang; Hyewon Park; Jeong-Ho Lee; SeKwon Oh; Kwi-Il Park; Myunghwan Byun; Hyelim Park; Gun Ahn; Chang Kyu Jeong; Kwangsoo No; HyukSang Kwon; Sang-Goo Lee; Boyoung Joung; Keon Jae Lee

doi:10.1002/adma.201400562

Self-powered cardiac pacemaker enabled by flexible single crystalline PMN-PT piezoelectric energy harvester

Adv Mater. 2014 Jul 23;26(28):4880-7. doi: 10.1002/adma.201400562. Epub 2014 Apr 17.

Authors

Geon-Tae Hwang¹, Hyewon Park, Jeong-Ho Lee, SeKwon Oh, Kwi-Il Park, Myunghwan Byun, Hyelim Park, Gun Ahn, Chang Kyu Jeong, Kwangsoo No, HyukSang Kwon, Sang-Goo Lee, Boyoung Joung, Keon Jae Lee

Affiliation

¹ Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea.

PMID: 24740465
DOI: 10.1002/adma.201400562

Abstract

A flexible single-crystalline PMN-PT piezoelectric energy harvester is demonstrated to achieve a self-powered artificial cardiac pacemaker. The energy-harvesting device generates a short-circuit current of 0.223 mA and an open-circuit voltage of 8.2 V, which are enough not only to meet the standard for charging commercial batteries but also for stimulating the heart without an external power source.

Keywords: flexible piezoelectric energy harvester; self-powered artificial cardiac pacemaker; single crystal PMN-PT; thin film nanogenerator.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Crystallization
Elastic Modulus
Electric Power Supplies*
Energy Transfer
Equipment Design
Equipment Failure Analysis
Lead / chemistry*
Materials Testing
Micro-Electrical-Mechanical Systems / instrumentation*
Niobium / chemistry*
Oxides / chemistry*
Pacemaker, Artificial*
Prostheses and Implants*
Titanium / chemistry*

Substances

Oxides
lead magnesium niobate
lead titanate
Niobium
Lead
Titanium