In Situ Observation of Current Generation in ZnO Nanowire Based Nanogenerators Using a CAFM Integrated into an SEM

Chao Wen; Xu Jing; Frank F. Hitzel; Chengbin Pan; Guenther Benstetter; Mario Lanza

doi:10.1021/acsami.9b00447

In Situ Observation of Current Generation in ZnO Nanowire Based Nanogenerators Using a CAFM Integrated into an SEM

Chao Wen, Xu Jing, Frank F. Hitzel, Chengbin Pan, Guenther Benstetter, Mario Lanza

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

14 Scopus citations

Abstract

In this work, we monitor in situ the movement of ZnO piezoelectric nanowires by using a conductive atomic force microscope integrated into a scanning electron microscope. This setup allows seeing the bending of the nanowires and simultaneously measuring the currents generated. We conclude that the currents generated not only come from piezoelectric effect, but also from contact potential and triboelectric effect. These contributions have been ignored in all previous reports in this field, meaning that the power conversion efficiency of these devices may have been systematically overestimated. Our study helps to clarify the working mechanism of piezoelectric nanogenerators based on ZnO nanowires.

Original language	English (US)
Pages (from-to)	15183-15188
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	11
Issue number	17
DOIs	https://doi.org/10.1021/acsami.9b00447
State	Published - May 1 2019
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2021-03-16

ASJC Scopus subject areas

General Materials Science

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10.1021/acsami.9b00447

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abstract = "In this work, we monitor in situ the movement of ZnO piezoelectric nanowires by using a conductive atomic force microscope integrated into a scanning electron microscope. This setup allows seeing the bending of the nanowires and simultaneously measuring the currents generated. We conclude that the currents generated not only come from piezoelectric effect, but also from contact potential and triboelectric effect. These contributions have been ignored in all previous reports in this field, meaning that the power conversion efficiency of these devices may have been systematically overestimated. Our study helps to clarify the working mechanism of piezoelectric nanogenerators based on ZnO nanowires.",

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AU - Jing, Xu

AU - Hitzel, Frank F.

AU - Pan, Chengbin

AU - Benstetter, Guenther

AU - Lanza, Mario

N1 - Generated from Scopus record by KAUST IRTS on 2021-03-16

PY - 2019/5/1

Y1 - 2019/5/1

N2 - In this work, we monitor in situ the movement of ZnO piezoelectric nanowires by using a conductive atomic force microscope integrated into a scanning electron microscope. This setup allows seeing the bending of the nanowires and simultaneously measuring the currents generated. We conclude that the currents generated not only come from piezoelectric effect, but also from contact potential and triboelectric effect. These contributions have been ignored in all previous reports in this field, meaning that the power conversion efficiency of these devices may have been systematically overestimated. Our study helps to clarify the working mechanism of piezoelectric nanogenerators based on ZnO nanowires.

AB - In this work, we monitor in situ the movement of ZnO piezoelectric nanowires by using a conductive atomic force microscope integrated into a scanning electron microscope. This setup allows seeing the bending of the nanowires and simultaneously measuring the currents generated. We conclude that the currents generated not only come from piezoelectric effect, but also from contact potential and triboelectric effect. These contributions have been ignored in all previous reports in this field, meaning that the power conversion efficiency of these devices may have been systematically overestimated. Our study helps to clarify the working mechanism of piezoelectric nanogenerators based on ZnO nanowires.

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

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ER -

In Situ Observation of Current Generation in ZnO Nanowire Based Nanogenerators Using a CAFM Integrated into an SEM

Abstract

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