High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements
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. Here, we present noncontact electrostatic voltmeter measurements as a simple...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
World Scientific Publishing
2023-08-01
|
| Series: | Journal of Advanced Dielectrics |
| Subjects: | |
| Online Access: | https://www.worldscientific.com/doi/10.1142/S2010135X23410023 |
| _version_ | 1797674352728080384 |
|---|---|
| author | Reinhard Schwödiauer Simona Bauer-Gogonea Martin Kaltenbrunner Volodymyr Tkachenko Simonetta Grilli |
| author_facet | Reinhard Schwödiauer Simona Bauer-Gogonea Martin Kaltenbrunner Volodymyr Tkachenko Simonetta Grilli |
| author_sort | Reinhard Schwödiauer |
| collection | DOAJ |
| description | 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. Here, we present noncontact electrostatic voltmeter measurements as a simple but highly accurate alternative, by assessing thermally-induced pyroelectric surface potential variations. We introduce a refined model that relates the surface potential variations to both the pyroelectric coefficient and the characteristic figure of merit (FOM) and test the model with square-shaped samples made from PVDF, LiNbO3 and LiTaO3. The characteristic pyroelectric coefficient for PVDF, LiNbO3 and LiTaO3 was found to be 33.4, 59.9 and 208.4 [Formula: see text]C m[Formula: see text] K[Formula: see text], respectively. These values are in perfect agreement with literature values, and they differ by less than 2.5% from values that we have obtained with standard pyroelectric current measurements for comparison. |
| first_indexed | 2024-03-11T21:57:51Z |
| format | Article |
| id | doaj.art-9be3a4151b714a5fb63ae202afabb70b |
| institution | Directory Open Access Journal |
| issn | 2010-135X 2010-1368 |
| language | English |
| last_indexed | 2024-03-11T21:57:51Z |
| publishDate | 2023-08-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Advanced Dielectrics |
| spelling | doaj.art-9be3a4151b714a5fb63ae202afabb70b2023-09-26T01:36:15ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682023-08-01130410.1142/S2010135X23410023High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurementsReinhard Schwödiauer0Simona Bauer-Gogonea1Martin Kaltenbrunner2Volodymyr Tkachenko3Simonetta Grilli4Soft Matter Physics, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, AustriaSoft Matter Physics, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, AustriaSoft Matter Physics, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, AustriaInstitute of Applied Sciences & Intelligent Systems, National Research Council (CNR-ISASI), Via Campi Flegrei 34, 80078 Pozzuoli (NA), ItalyInstitute of Applied Sciences & Intelligent Systems, National Research Council (CNR-ISASI), Via Campi Flegrei 34, 80078 Pozzuoli (NA), ItalyThe 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. Here, we present noncontact electrostatic voltmeter measurements as a simple but highly accurate alternative, by assessing thermally-induced pyroelectric surface potential variations. We introduce a refined model that relates the surface potential variations to both the pyroelectric coefficient and the characteristic figure of merit (FOM) and test the model with square-shaped samples made from PVDF, LiNbO3 and LiTaO3. The characteristic pyroelectric coefficient for PVDF, LiNbO3 and LiTaO3 was found to be 33.4, 59.9 and 208.4 [Formula: see text]C m[Formula: see text] K[Formula: see text], respectively. These values are in perfect agreement with literature values, and they differ by less than 2.5% from values that we have obtained with standard pyroelectric current measurements for comparison.https://www.worldscientific.com/doi/10.1142/S2010135X23410023Pyroelectric coefficientsurface potentialfigure of merit |
| spellingShingle | Reinhard Schwödiauer Simona Bauer-Gogonea Martin Kaltenbrunner Volodymyr Tkachenko Simonetta Grilli High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements Journal of Advanced Dielectrics Pyroelectric coefficient surface potential figure of merit |
| title | High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements |
| title_full | High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements |
| title_fullStr | High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements |
| title_full_unstemmed | High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements |
| title_short | High-accuracy characterization of pyroelectric materials: A noncontact method based on surface potential measurements |
| title_sort | high accuracy characterization of pyroelectric materials a noncontact method based on surface potential measurements |
| topic | Pyroelectric coefficient surface potential figure of merit |
| url | https://www.worldscientific.com/doi/10.1142/S2010135X23410023 |
| work_keys_str_mv | AT reinhardschwodiauer highaccuracycharacterizationofpyroelectricmaterialsanoncontactmethodbasedonsurfacepotentialmeasurements AT simonabauergogonea highaccuracycharacterizationofpyroelectricmaterialsanoncontactmethodbasedonsurfacepotentialmeasurements AT martinkaltenbrunner highaccuracycharacterizationofpyroelectricmaterialsanoncontactmethodbasedonsurfacepotentialmeasurements AT volodymyrtkachenko highaccuracycharacterizationofpyroelectricmaterialsanoncontactmethodbasedonsurfacepotentialmeasurements AT simonettagrilli highaccuracycharacterizationofpyroelectricmaterialsanoncontactmethodbasedonsurfacepotentialmeasurements |