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Nano Research 2017, 10(2): 437-455 https://doi.org/10.1007/s12274-016-1304-6
Research Article | Issue | Published: 02 November 2016

Flexible highly-effective energy harvester via crystallographic and computational control of nanointerfacial morphotropic piezoelectric thin film

Show Author's Information Chang Kyu Jeong1,2,†,,, ,§,  Sung Beom Cho3,§,  Jae Hyun Han1,  Dae Yong Park1,  Suyoung Yang4,  Kwi-Il Park5,  Jungho Ryu6,  Hoon Sohn4( ),  Yong-Chae Chung3( ),  Keon Jae Lee1( )
Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak-roYuseong-guDaejeon34141Republic of Korea
KAIST Institute for the NanoCentury (KINC)291 Daehak-roYuseong-guDaejeon34141Republic of Korea
Division of Materials Science and EngineeringHanyang University222 Wangsimni-roSeongdong-guSeoul04763Republic of Korea
Department of Civil and Environmental EngineeringKAIST291 Daehak-roYuseong-guDaejeon34141Republic of Korea
Department of Energy EngineeringGyeongnam National University of Science and Technology33 Dongjin-roJinjuGyeongnam52725Republic of Korea
Functional Ceramic GroupKorea Institute of Materials Science (KIMS)797 Changwon-daeroSeongsan-guChangwonGyeongnam51508Republic of Korea

† Present address: Department of Materials Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA § These authors contributed equally to this work.

Keywords:
energy harvesting, piezoelectric, first-principles calculation, morphotropic phase boundary (MPB), lead zirconium titanate (PZT)
Cite this article:
Jeong CK, Cho SB, Han JH, et al. Flexible highly-effective energy harvester via crystallographic and computational control of nanointerfacial morphotropic piezoelectric thin film. Nano Research, 2017, 10(2): 437-455. https://doi.org/10.1007/s12274-016-1304-6
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Abstract Full text Electronic supplementary material About this article

Controlling the properties of piezoelectric thin films is a key aspect for designing highly efficient flexible electromechanical devices. In this study, the crystallographic phenomena of PbZr1–xTixO3 (PZT) thin films caused by distinguished interfacial effects are deeply investigated by overlooking views, including not only an experimental demonstration but also ab initio modeling. The polymorphic phase balance and crystallinity, as well as the crystal orientation of PZT thin films at the morphotropic phase boundary (MPB), can be stably modulated using interfacial crystal structures. Here, interactions with MgO stabilize the PZT crystallographic system well and induce the texturing influences, while the PZT film remains quasi-stable on a conventional Al2O3 wafer. On the basis of this fundamental understanding, a high-output flexible energy harvester is developed using the controlled-PZT system, which shows significantly higher performance than the unmodified PZT generator. The voltage, current, and power densities are improved by 556%, 503%, and 822%, respectively, in comparison with the previous flexional single-crystalline piezoelectric device. Finally, the improved flexible generator is applied to harvest tiny vibrational energy from a real traffic system, and it is used to operate a commercial electronic unit. These results clearly indicate that atomic-scale designs can produce significant impacts on macroscopic applications.


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Abstract
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Electronic supplementary material
About this article

Flexible highly-effective energy harvester via crystallographic and computational control of nanointerfacial morphotropic piezoelectric thin film

Show Author's information Chang Kyu Jeong1,2,†,,, ,§, Sung Beom Cho3,§, Jae Hyun Han1, Dae Yong Park1, Suyoung Yang4, Kwi-Il Park5, Jungho Ryu6, Hoon Sohn4( ), Yong-Chae Chung3( ), Keon Jae Lee1( )
Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak-roYuseong-guDaejeon34141Republic of Korea
KAIST Institute for the NanoCentury (KINC)291 Daehak-roYuseong-guDaejeon34141Republic of Korea
Division of Materials Science and EngineeringHanyang University222 Wangsimni-roSeongdong-guSeoul04763Republic of Korea
Department of Civil and Environmental EngineeringKAIST291 Daehak-roYuseong-guDaejeon34141Republic of Korea
Department of Energy EngineeringGyeongnam National University of Science and Technology33 Dongjin-roJinjuGyeongnam52725Republic of Korea
Functional Ceramic GroupKorea Institute of Materials Science (KIMS)797 Changwon-daeroSeongsan-guChangwonGyeongnam51508Republic of Korea

† Present address: Department of Materials Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA § These authors contributed equally to this work.

Abstract

Controlling the properties of piezoelectric thin films is a key aspect for designing highly efficient flexible electromechanical devices. In this study, the crystallographic phenomena of PbZr1–xTixO3 (PZT) thin films caused by distinguished interfacial effects are deeply investigated by overlooking views, including not only an experimental demonstration but also ab initio modeling. The polymorphic phase balance and crystallinity, as well as the crystal orientation of PZT thin films at the morphotropic phase boundary (MPB), can be stably modulated using interfacial crystal structures. Here, interactions with MgO stabilize the PZT crystallographic system well and induce the texturing influences, while the PZT film remains quasi-stable on a conventional Al2O3 wafer. On the basis of this fundamental understanding, a high-output flexible energy harvester is developed using the controlled-PZT system, which shows significantly higher performance than the unmodified PZT generator. The voltage, current, and power densities are improved by 556%, 503%, and 822%, respectively, in comparison with the previous flexional single-crystalline piezoelectric device. Finally, the improved flexible generator is applied to harvest tiny vibrational energy from a real traffic system, and it is used to operate a commercial electronic unit. These results clearly indicate that atomic-scale designs can produce significant impacts on macroscopic applications.

Keywords: energy harvesting, piezoelectric, first-principles calculation, morphotropic phase boundary (MPB), lead zirconium titanate (PZT)

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Publication history
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Acknowledgements

Publication history

Received: 01 August 2016
Revised: 20 September 2016
Accepted: 26 September 2016
Published: 02 November 2016
Issue date: February 2017

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016

Acknowledgements

Acknowledgements

The authors would like to thank the CEO of RoboPrint Co., Jung Gyu Park. This study was backed up by the research project–Product Development of Wearable Self-Powered Energy Device and Integrated Self- Powered Energy Device from PEPS (No. G01150219). This research was supported by Nano·Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (MSIP) (No. 2016M3A7B4910636). This is also supported by Global Frontier R & D Program on Center for Integrated Smart Sensors (No. CISS-2016M3A6A6929958) funded by MSIP through NRF of Korea government. This work was additionally supported by Basic Science Research Program through the NRF of Korea funded by MSIP (No. 2016R1A2B4010674).

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