Xu, Ze ; Liu, Yi‐Xuan ; Azadeh, Maryam ; Thong, Hao‐Cheng ; Jiang, Yuqi ; Yao, Fang‐Zhou ; Yue, Zhen‐Xing ; Zhang, Zhong‐Tai ; Tang, Zi‐Long ; Li, Jing‐Feng ; Wang, Heng ; Frömling, Till ; Wang, Ke (2023)
Identifying the Interfacial Polarization in Non‐stoichiometric Lead‐Free Perovskites by Defect Engineering.
In: Angewandte Chemie International Edition, 2023, 62 (9)
doi: 10.26083/tuprints-00023745
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Recent advances in perovskite ferroelectrics have fostered a host of exciting sensors and actuators. Defect engineering provides critical control of the performance of ferroelectric materials, especially lead‐free ones. However, it remains a challenge to quantitatively study the concentration of defects due to the complexity of measurement techniques. Here, a feasible approach to analyzing the A‐site defect and electron in alkali metal niobate is demonstrated. The theoretical relationships among defect concentration, conductivity, and oxygen partial pressure can be established based on the defect chemistry equilibria. The type and concentration of defects are reflected through the conductivity variation with oxygen partial pressure. As a result, the variation of defect concentration gives rise to defect‐driven interfacial polarization, which further leads to distinct properties of the ceramics. e.g., abnormal dielectric behavior. Furthermore, this study also suggests a strategy to manipulate defects and charges in perovskite oxides for performance optimization.
| Typ des Eintrags: | Artikel | ||||
|---|---|---|---|---|---|
| Erschienen: | 2023 | ||||
| Autor(en): | Xu, Ze ; Liu, Yi‐Xuan ; Azadeh, Maryam ; Thong, Hao‐Cheng ; Jiang, Yuqi ; Yao, Fang‐Zhou ; Yue, Zhen‐Xing ; Zhang, Zhong‐Tai ; Tang, Zi‐Long ; Li, Jing‐Feng ; Wang, Heng ; Frömling, Till ; Wang, Ke | ||||
| Art des Eintrags: | Zweitveröffentlichung | ||||
| Titel: | Identifying the Interfacial Polarization in Non‐stoichiometric Lead‐Free Perovskites by Defect Engineering | ||||
| Sprache: | Englisch | ||||
| Publikationsjahr: | 24 November 2023 | ||||
| Ort: | Darmstadt | ||||
| Publikationsdatum der Erstveröffentlichung: | 2023 | ||||
| Ort der Erstveröffentlichung: | Weinheim | ||||
| Verlag: | Wiley-VCH | ||||
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Angewandte Chemie International Edition | ||||
| Jahrgang/Volume einer Zeitschrift: | 62 | ||||
| (Heft-)Nummer: | 9 | ||||
| Kollation: | 8 Seiten | ||||
| DOI: | 10.26083/tuprints-00023745 | ||||
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23745 | ||||
| Zugehörige Links: | |||||
| Herkunft: | Zweitveröffentlichung DeepGreen | ||||
| Kurzbeschreibung (Abstract): | Recent advances in perovskite ferroelectrics have fostered a host of exciting sensors and actuators. Defect engineering provides critical control of the performance of ferroelectric materials, especially lead‐free ones. However, it remains a challenge to quantitatively study the concentration of defects due to the complexity of measurement techniques. Here, a feasible approach to analyzing the A‐site defect and electron in alkali metal niobate is demonstrated. The theoretical relationships among defect concentration, conductivity, and oxygen partial pressure can be established based on the defect chemistry equilibria. The type and concentration of defects are reflected through the conductivity variation with oxygen partial pressure. As a result, the variation of defect concentration gives rise to defect‐driven interfacial polarization, which further leads to distinct properties of the ceramics. e.g., abnormal dielectric behavior. Furthermore, this study also suggests a strategy to manipulate defects and charges in perovskite oxides for performance optimization. |
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| Alternatives oder übersetztes Abstract: |
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| Freie Schlagworte: | A-Site Defect, Defect Engineering, Interfacial Polarization, Oxygen Partial Pressure, Perovskites | ||||
| ID-Nummer: | e202216776 | ||||
| Status: | Verlagsversion | ||||
| URN: | urn:nbn:de:tuda-tuprints-237452 | ||||
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie | ||||
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
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| Hinterlegungsdatum: | 24 Nov 2023 13:55 | ||||
| Letzte Änderung: | 27 Nov 2023 07:30 | ||||
| PPN: | |||||
| Zugehörige Links: | |||||
| Export: | |||||
| Suche nach Titel in: | TUfind oder in Google | ||||
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- Identifying the Interfacial Polarization in Non‐stoichiometric Lead‐Free Perovskites by Defect Engineering. (deposited 24 Nov 2023 13:55) [Gegenwärtig angezeigt]
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