Comprehensive biocompatibility of nontoxic and high-output flexible energy harvester using lead-free piezoceramic thin film

Chang Kyu Jeong, Jae Hyun Han, Haribabu Palneedi, Hyewon Park, Geon Tae Hwang, Boyoung Joung, Seong Gon Kim, Hong Ju Shin, Il Suk Kang, Jungho Ryu, Keon Jae Lee

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Flexible piezoelectric energy harvesters have been regarded as an overarching candidate for achieving self-powered electronic systems for environmental sensors and biomedical devices using the self-sufficient electrical energy. In this research, we realize a flexible high-output and lead-free piezoelectric energy harvester by using the aerosol deposition method and the laser lift-off process. We also investigated the comprehensive biocompatibility of the lead-free piezoceramic device using ex-vivo ionic elusion and in vivo bioimplantation, as well as in vitro cell proliferation and histologic inspection. The fabricated LiNbO3-doped (K,Na)NbO3 (KNN) thin film-based flexible energy harvester exhibited an outstanding piezoresponse, and average output performance of an open-circuit voltage of ∼130 V and a short-circuit current of ∼1.3 μ A under normal bending and release deformation, which is the best record among previously reported flexible lead-free piezoelectric energy harvesters. Although both the KNN and Pb(Zr,Ti)O3 (PZT) devices showed short-term biocompatibility in cellular and histological studies, excessive Pb toxic ions were eluted from the PZT in human serum and tap water. Moreover, the KNN-based flexible energy harvester was implanted into a porcine chest and generated up to ∼5 V and 700 nA from the heartbeat motion, comparable to the output of previously reported lead-based flexible energy harvesters. This work can compellingly serve to advance the development of piezoelectric energy harvesting for actual and practical biocompatible self-powered biomedical applications beyond restrictions of lead-based materials in long-term physiological and clinical aspects.

Original languageEnglish
Article number074102
JournalAPL Materials
Volume5
Issue number7
DOIs
Publication statusPublished - 2017 Jul 1

Fingerprint

Harvesters
Biocompatibility
Lead
Thin films
Energy harvesting
Poisons
Cell proliferation
Open circuit voltage
Aerosols
Short circuit currents
Inspection
Ions
Water
Lasers
Sensors

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

Jeong, Chang Kyu ; Han, Jae Hyun ; Palneedi, Haribabu ; Park, Hyewon ; Hwang, Geon Tae ; Joung, Boyoung ; Kim, Seong Gon ; Shin, Hong Ju ; Kang, Il Suk ; Ryu, Jungho ; Lee, Keon Jae. / Comprehensive biocompatibility of nontoxic and high-output flexible energy harvester using lead-free piezoceramic thin film. In: APL Materials. 2017 ; Vol. 5, No. 7.
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Jeong, CK, Han, JH, Palneedi, H, Park, H, Hwang, GT, Joung, B, Kim, SG, Shin, HJ, Kang, IS, Ryu, J & Lee, KJ 2017, 'Comprehensive biocompatibility of nontoxic and high-output flexible energy harvester using lead-free piezoceramic thin film', APL Materials, vol. 5, no. 7, 074102. https://doi.org/10.1063/1.4976803

Comprehensive biocompatibility of nontoxic and high-output flexible energy harvester using lead-free piezoceramic thin film. / Jeong, Chang Kyu; Han, Jae Hyun; Palneedi, Haribabu; Park, Hyewon; Hwang, Geon Tae; Joung, Boyoung; Kim, Seong Gon; Shin, Hong Ju; Kang, Il Suk; Ryu, Jungho; Lee, Keon Jae.

In: APL Materials, Vol. 5, No. 7, 074102, 01.07.2017.

Research output: Contribution to journalArticle

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AU - Jeong, Chang Kyu

AU - Han, Jae Hyun

AU - Palneedi, Haribabu

AU - Park, Hyewon

AU - Hwang, Geon Tae

AU - Joung, Boyoung

AU - Kim, Seong Gon

AU - Shin, Hong Ju

AU - Kang, Il Suk

AU - Ryu, Jungho

AU - Lee, Keon Jae

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