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Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise

Polyvinylidene fluoride (PVDF) films possess multifunctional ability for piezo/pyro/ferroelectronic applications. One critical challenge of the traditional techniques is the complicated fabrication process for obtaining the poled films. In this work, the PVDF film is facilely prepared by the solutio...

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Autores principales: Wu, Yuming, Du, Xiaosong, Gao, Ruoyao, Li, Jimeng, Li, Weizhi, Yu, He, Jiang, Zhi, Wang, Zhidong, Tai, Huiling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395468/
https://www.ncbi.nlm.nih.gov/pubmed/30820843
http://dx.doi.org/10.1186/s11671-019-2906-1
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author Wu, Yuming
Du, Xiaosong
Gao, Ruoyao
Li, Jimeng
Li, Weizhi
Yu, He
Jiang, Zhi
Wang, Zhidong
Tai, Huiling
author_facet Wu, Yuming
Du, Xiaosong
Gao, Ruoyao
Li, Jimeng
Li, Weizhi
Yu, He
Jiang, Zhi
Wang, Zhidong
Tai, Huiling
author_sort Wu, Yuming
collection PubMed
description Polyvinylidene fluoride (PVDF) films possess multifunctional ability for piezo/pyro/ferroelectronic applications. One critical challenge of the traditional techniques is the complicated fabrication process for obtaining the poled films. In this work, the PVDF film is facilely prepared by the solution cast on hydrophilically treated substrates. The obtained PVDF films exhibit fairly good pyroelectricity comparable to those fabricated by thermal poling, indicating the film is self-polarized. This result is attributed to the hydrogen-bonding-induced orderly arrangement of the first sub-nanolayer at the bottom, which serves as a “seed layer” and triggered alignment of the rest of the film in a layer-by-layer approach. Additionally, to suppress the piezoelectric noise, a pyroelectric sensor with a novel bilayer structure is developed using the as-prepared PVDF film. Compared with the conventional monolayer sensor, the signal-to-noise ratio of the bilayer one is drastically improved to 38 dB from 18 dB. The above results provide great possibilities for achieving a high-performance wearable pyroelectric sensor with reduced cost and simple procedures. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s11671-019-2906-1) contains supplementary material, which is available to authorized users.
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spelling pubmed-63954682019-03-18 Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise Wu, Yuming Du, Xiaosong Gao, Ruoyao Li, Jimeng Li, Weizhi Yu, He Jiang, Zhi Wang, Zhidong Tai, Huiling Nanoscale Res Lett Nano Express Polyvinylidene fluoride (PVDF) films possess multifunctional ability for piezo/pyro/ferroelectronic applications. One critical challenge of the traditional techniques is the complicated fabrication process for obtaining the poled films. In this work, the PVDF film is facilely prepared by the solution cast on hydrophilically treated substrates. The obtained PVDF films exhibit fairly good pyroelectricity comparable to those fabricated by thermal poling, indicating the film is self-polarized. This result is attributed to the hydrogen-bonding-induced orderly arrangement of the first sub-nanolayer at the bottom, which serves as a “seed layer” and triggered alignment of the rest of the film in a layer-by-layer approach. Additionally, to suppress the piezoelectric noise, a pyroelectric sensor with a novel bilayer structure is developed using the as-prepared PVDF film. Compared with the conventional monolayer sensor, the signal-to-noise ratio of the bilayer one is drastically improved to 38 dB from 18 dB. The above results provide great possibilities for achieving a high-performance wearable pyroelectric sensor with reduced cost and simple procedures. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s11671-019-2906-1) contains supplementary material, which is available to authorized users. Springer US 2019-02-28 /pmc/articles/PMC6395468/ /pubmed/30820843 http://dx.doi.org/10.1186/s11671-019-2906-1 Text en © The Author(s). 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Wu, Yuming
Du, Xiaosong
Gao, Ruoyao
Li, Jimeng
Li, Weizhi
Yu, He
Jiang, Zhi
Wang, Zhidong
Tai, Huiling
Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title_full Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title_fullStr Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title_full_unstemmed Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title_short Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noise
title_sort self-polarization of pvdf film triggered by hydrophilic treatment for pyroelectric sensor with ultra-low piezoelectric noise
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395468/
https://www.ncbi.nlm.nih.gov/pubmed/30820843
http://dx.doi.org/10.1186/s11671-019-2906-1
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