Piezoelectric two-dimensional nanosheets/anionic layer heterojunction for efficient direct current power generation

Kwon Ho Kim; Brijesh Kumar; Keun Young Lee; Hyun Kyu Park; Ju Hyuck Lee; Hyun Hwi Lee; Hoin Jun; Dongyun Lee; Sang Woo Kim

doi:10.1038/srep02017

Piezoelectric two-dimensional nanosheets/anionic layer heterojunction for efficient direct current power generation

Kwon Ho Kim, Brijesh Kumar, Keun Young Lee, Hyun Kyu Park, Ju Hyuck Lee, Hyun Hwi Lee, Hoin Jun, Dongyun Lee, Sang Woo Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Direct current (DC) piezoelectric power generator is promising for the miniaturization of a power package and self-powering of nanorobots and body-implanted devices. Hence, we report the first use of two-dimensional (2D) zinc oxide (ZnO) nanostructure and an anionic nanoclay layer to generate piezoelectric DC output power. The device, made from 2D nanosheets and an anionic nanoclay layer heterojunction, has potential to be the smallest size power package, and could be used to charge wireless nano/micro scale systems without the use of rectifier circuits to convert alternating current into DC to store the generated power. The combined effect of buckling behaviour of the ZnO nanosheets, a self-formed anionic nanoclay layer, and coupled semiconducting and piezoelectric properties of ZnO nanosheets contributes to efficient DC power generation. The networked ZnO nanosheets proved to be structurally stable under huge external mechanical loads.

Original language	English
Article number	2017
Journal	Scientific reports
Volume	3
DOIs	https://doi.org/10.1038/srep02017
Publication status	Published - 2013

Bibliographical note

Funding Information:
This work was financially supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (2012R1A2A1A01002787, 2010-0019086, 2010-0015035, and 2011-0027090) and the Energy International Collaboration Research & Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Knowledge Economy (MKE) (2011-8520010050).

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10.1038/srep02017

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title = "Piezoelectric two-dimensional nanosheets/anionic layer heterojunction for efficient direct current power generation",

abstract = "Direct current (DC) piezoelectric power generator is promising for the miniaturization of a power package and self-powering of nanorobots and body-implanted devices. Hence, we report the first use of two-dimensional (2D) zinc oxide (ZnO) nanostructure and an anionic nanoclay layer to generate piezoelectric DC output power. The device, made from 2D nanosheets and an anionic nanoclay layer heterojunction, has potential to be the smallest size power package, and could be used to charge wireless nano/micro scale systems without the use of rectifier circuits to convert alternating current into DC to store the generated power. The combined effect of buckling behaviour of the ZnO nanosheets, a self-formed anionic nanoclay layer, and coupled semiconducting and piezoelectric properties of ZnO nanosheets contributes to efficient DC power generation. The networked ZnO nanosheets proved to be structurally stable under huge external mechanical loads.",

author = "Kim, {Kwon Ho} and Brijesh Kumar and Lee, {Keun Young} and Park, {Hyun Kyu} and Lee, {Ju Hyuck} and Lee, {Hyun Hwi} and Hoin Jun and Dongyun Lee and Kim, {Sang Woo}",

note = "Funding Information: This work was financially supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (2012R1A2A1A01002787, 2010-0019086, 2010-0015035, and 2011-0027090) and the Energy International Collaboration Research & Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Knowledge Economy (MKE) (2011-8520010050).",

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AU - Kumar, Brijesh

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AU - Lee, Ju Hyuck

AU - Lee, Hyun Hwi

AU - Jun, Hoin

AU - Lee, Dongyun

AU - Kim, Sang Woo

N1 - Funding Information: This work was financially supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (2012R1A2A1A01002787, 2010-0019086, 2010-0015035, and 2011-0027090) and the Energy International Collaboration Research & Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Knowledge Economy (MKE) (2011-8520010050).

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N2 - Direct current (DC) piezoelectric power generator is promising for the miniaturization of a power package and self-powering of nanorobots and body-implanted devices. Hence, we report the first use of two-dimensional (2D) zinc oxide (ZnO) nanostructure and an anionic nanoclay layer to generate piezoelectric DC output power. The device, made from 2D nanosheets and an anionic nanoclay layer heterojunction, has potential to be the smallest size power package, and could be used to charge wireless nano/micro scale systems without the use of rectifier circuits to convert alternating current into DC to store the generated power. The combined effect of buckling behaviour of the ZnO nanosheets, a self-formed anionic nanoclay layer, and coupled semiconducting and piezoelectric properties of ZnO nanosheets contributes to efficient DC power generation. The networked ZnO nanosheets proved to be structurally stable under huge external mechanical loads.

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Piezoelectric two-dimensional nanosheets/anionic layer heterojunction for efficient direct current power generation

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