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High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements

open access: yesJournal of Advanced Dielectrics, 2023
The characterization of pyroelectric materials is essential for the design of pyroelectric-based devices. Pyroelectric current measurement is the commonly employed method, but can be complex and requires surface electrodes.
Reinhard Schwödiauer   +4 more
doaj   +1 more source

An overview of pyroelectric photodetector: Photoresponse mechanisms and applications

open access: yesAIP Advances, 2023
Recently, pyroelectric materials have gained significant interest for energy harvesting, sensing and detection, and so on. For photodetection, pyroelectric photodetectors show great advantages due to high-performance photo-sensing without an external ...
Junlong Tian
doaj   +1 more source

Electrical response of lithium niobate and lithium tantalate thin films to modulated thermal radiation

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
In this work, we studied the pyroelectric activity of thin polycrystalline lithium niobate films fabricated by radio frequency magnetron sputtering and laser ablation, and thin polycrystalline lithium tantalate films fabricated by radio frequency ...
S.I. Gudkov   +3 more
doaj   +1 more source

Proton Irradiation Effects on the Pyroelectric Properties of P‐Type Bismuth Antimonide/Poly(vinylidene fluoride–trifluoroethylene) Composite Films

open access: yesAdvanced Electronic Materials, 2023
Organic pyroelectric materials are widely applied as temperature sensors in wearable electronic devices due to their good biocompatibility and stability.
Chuanyang Cai   +6 more
doaj   +1 more source

Pyroelectric Properties of Bismuth Borate BZBO Single Crystals

open access: yesCrystals, 2021
Pyroelectric properties of orthorhombic Bi2ZnB2O7 (BZBO) crystals were investigated by using the charge integration method. The primary and the secondary pyroelectric coefficients of BZBO crystals were found to be 6.4 and −6.5 µC/(m2·°C), respectively ...
Feifei Chen   +3 more
doaj   +1 more source

Charge Density-Based Pyroelectric Vacuum Sensor

open access: yesResearch, 2023
A traditional thermal conductivity vacuum gauge mainly detects low pressure (the degree of vacuum) by measuring the temperature change of a filament heated by the electric current. We propose a novel pyroelectric vacuum sensor that utilizes the effect of
Lan Xu   +3 more
doaj   +1 more source

Microstructured PVDF Film with Improved Performance as Flexible Infrared Sensor

open access: yesSensors, 2022
Polyvinylidene fluoride (PVDF) is a very promising material for fabricating flexible infrared sensors due to its ferroelectricity as well as excellent flexibility and low fabrication cost. This work focuses on improving PVDF’s pyroelectric performance by
Hongjian Guan   +4 more
doaj   +1 more source

A Strip Cell in Pyroelectric Devices

open access: yesSensors, 2016
The pyroelectric effect affords the opportunity to convert temporal temperature fluctuations into usable electrical energy in order to develop abundantly available waste heat.
An-Shen Siao   +2 more
doaj   +1 more source

Studying the Pyroelectric Effects of LiNbO3 Modified Composites

open access: yesNanoscale Research Letters, 2020
LiNbO3 (LN) crystal has been widely used as a pyroelectric material due to its spontaneous electric polarization, which could be recharged easily and can directly convert heat energy into electricity.
Fan Zhang   +7 more
doaj   +1 more source

Design of wideband terahertz pyroelectric detector based on metasurface [PDF]

open access: yesJournal of Hebei University of Science and Technology
In order to solve the problems of low absorption efficiency and small frequency range of traditional terahertz (THz) detectors, a broadband terahertz metasurface pyroelectric detector was proposed by combining a dual metasurface absorption array ...
Ming ZHANG   +6 more
doaj   +1 more source

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