Electrical and optical properties of new Pr3+-doped PbWO4 ceramics
Authors:
- Tadeusz Groń,
- Magdalena Piątkowska,
- Elżbieta Tomaszewicz,
- Bogdan Sawicki,
- Piotr Urbanowicz,
- Henryk Duda
Abstract
Polycrystalline samples of new scheelite-type tungstates, Pb1 - 3x□xPr2xWO4 with 0.0098 ≤ x ≤ 0.20, where □ denotes cationic vacancies have been successfully prepared by a high-temperature solid-state reaction method using Pr2(WO4)3 and PbWO4as the starting reactants. The influence of the Pr3+ substitution in the scheelite framework on the structure and optical properties of prepared new ceramic materials has been examined using powder X-ray diffraction method (XRD) and UV-Vis-NIR spectroscopy. The results of dielectric studies of Pb1 - 3x□xPr2xWO4 samples showed both low values of dielectric constant (below 14) and loss tangent (below 0.2). The electrical conductivity and thermoelectric power measurements revealed a low conductivity (∼2 × 10-9 S/m) and the sign change of thermoelectric power around the temperature of 366 K suggesting the p-n transition. These results are discussed in the context of vacancy, acceptor and donor levels as well as the Maxwell-Wagner model.
- Record ID
- USLb7871661ac234e2d8c3518987c5d5dcb
- Author
- Journal series
- Materials Science-Poland, ISSN 2083-1331, [2083-134X, 0137-1339]
- Issue year
- 2019
- Vol
- 36
- No
- 4
- Pages
- 530-536
- Publication size in sheets
- 0.30
- Keywords in English
- scheelite-type structure, thermoelectric power, optical properties, electrical conductivity
- DOI
- DOI:10.2478/msp-2018-0080 Opening in a new tab
- Handle.net URL
- hdl.handle.net/20.500.12128/8118 Opening in a new tab
- Language
- eng (en) English
- License
- File
-
- File: 1
- Electrical and optical properties of new Pr3+-doped PbWO4 ceramics, File Gron_Electrical_optical_properties_of_new.pdf / 1 MB
- Gron_Electrical_optical_properties_of_new.pdf
- publication date: 06-02-2024
- Electrical and optical properties of new Pr3+-doped PbWO4 ceramics, File Gron_Electrical_optical_properties_of_new.pdf / 1 MB
-
- Score (nominal)
- 40
- Score source
- BIBLIOGRAFIA DOROBKU PRACOWNIKÓW UŚ
- Publication indicators
- Uniform Resource Identifier
- https://opus.us.edu.pl/info/article/USLb7871661ac234e2d8c3518987c5d5dcb/
- URN
urn:uni-kat-prod:USLb7871661ac234e2d8c3518987c5d5dcb
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.