Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO3 materials for a self-powered flexible photodetector system

Kun Zhao; Bangsen Ouyang; Chris R. Bowen; Ya Yang

doi:10.1016/j.nanoen.2020.105152

Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO₃ materials for a self-powered flexible photodetector system

Kun Zhao, Bangsen Ouyang, Chris R. Bowen, Ya Yang

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

68 Citations (SciVal)

184 Downloads (Pure)

Abstract

Some ferroelectric materials have demonstrated both pyroelectric and photovoltaic effects for scavenging thermal and solar energies. However, how to couple pyroelectric and photovoltaic effects in ferroelectric materials remains a challenge. Here, a ferro-pyro-phototronic effect based on coupling pyroelectric and photovoltaic effects has been utilized to enhance the photocurrent in a ferroelectric BaTiO₃-based flexible photodetector system. As compared with a purely photovoltaic system, the corresponding current peak and plateau were 451.9% and 17.2% higher in the coupled photovoltaic-pyroelectric system, respectively. The results can be explained by ferro-pyro-phototronic effect with an induced energy band bending. As a demonstration of its potential application, we developed a sensing system that is suitable for detecting and recognizing both light and temperature variations by recording the electrical signals mapped as an array.

Original language	English
Article number	105152
Journal	Nano Energy
Volume	77
Early online date	26 Jul 2020
DOIs	https://doi.org/10.1016/j.nanoen.2020.105152
Publication status	Published - 30 Nov 2020

Funding

This work was supported by the National Key R&D Program of China (Grant No. 2016YFA0202701 ), the National Natural Science Foundation of China (Grant Nos. 51472055 ), External Cooperation Program of BIC, Chinese Academy of Sciences (Grant No. 121411KYS820150028 ), the 2015 Annual Beijing Talents Fund (Grant No. 2015000021223ZK32 ), Excellent Youth Talent Training Programs of Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology (No. 201904 ), the 2020 Annual Gansu University Innovation Fund Project (No. 2020A-018 ), Qingdao National Laboratory for Marine Science and Technology (No. 2017ASKJ01 ), the University of Chinese Academy of Sciences (Grant No. Y8540XX2D2 ), and the "thousands talents" program for the pioneer researcher and his innovation team, China.

Keywords

BaTiO
Ferro-pyro-phototronic effect
Photodetector systems
Photovoltaic effect
Pyroelectric effect

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.nanoen.2020.105152

manuscript_3Accepted author manuscript, 3.84 MBLicence: CC BY-NC-ND

Cite this

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title = "Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO3 materials for a self-powered flexible photodetector system",

abstract = "Some ferroelectric materials have demonstrated both pyroelectric and photovoltaic effects for scavenging thermal and solar energies. However, how to couple pyroelectric and photovoltaic effects in ferroelectric materials remains a challenge. Here, a ferro-pyro-phototronic effect based on coupling pyroelectric and photovoltaic effects has been utilized to enhance the photocurrent in a ferroelectric BaTiO3-based flexible photodetector system. As compared with a purely photovoltaic system, the corresponding current peak and plateau were 451.9\% and 17.2\% higher in the coupled photovoltaic-pyroelectric system, respectively. The results can be explained by ferro-pyro-phototronic effect with an induced energy band bending. As a demonstration of its potential application, we developed a sensing system that is suitable for detecting and recognizing both light and temperature variations by recording the electrical signals mapped as an array.",

keywords = "BaTiO, Ferro-pyro-phototronic effect, Photodetector systems, Photovoltaic effect, Pyroelectric effect",

author = "Kun Zhao and Bangsen Ouyang and Bowen, \{Chris R.\} and Ya Yang",

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AU - Zhao, Kun

AU - Ouyang, Bangsen

AU - Bowen, Chris R.

AU - Yang, Ya

PY - 2020/11/30

Y1 - 2020/11/30

N2 - Some ferroelectric materials have demonstrated both pyroelectric and photovoltaic effects for scavenging thermal and solar energies. However, how to couple pyroelectric and photovoltaic effects in ferroelectric materials remains a challenge. Here, a ferro-pyro-phototronic effect based on coupling pyroelectric and photovoltaic effects has been utilized to enhance the photocurrent in a ferroelectric BaTiO3-based flexible photodetector system. As compared with a purely photovoltaic system, the corresponding current peak and plateau were 451.9% and 17.2% higher in the coupled photovoltaic-pyroelectric system, respectively. The results can be explained by ferro-pyro-phototronic effect with an induced energy band bending. As a demonstration of its potential application, we developed a sensing system that is suitable for detecting and recognizing both light and temperature variations by recording the electrical signals mapped as an array.

AB - Some ferroelectric materials have demonstrated both pyroelectric and photovoltaic effects for scavenging thermal and solar energies. However, how to couple pyroelectric and photovoltaic effects in ferroelectric materials remains a challenge. Here, a ferro-pyro-phototronic effect based on coupling pyroelectric and photovoltaic effects has been utilized to enhance the photocurrent in a ferroelectric BaTiO3-based flexible photodetector system. As compared with a purely photovoltaic system, the corresponding current peak and plateau were 451.9% and 17.2% higher in the coupled photovoltaic-pyroelectric system, respectively. The results can be explained by ferro-pyro-phototronic effect with an induced energy band bending. As a demonstration of its potential application, we developed a sensing system that is suitable for detecting and recognizing both light and temperature variations by recording the electrical signals mapped as an array.

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