Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics
In this work, the phase transition behavior and electrostrictive and photoluminescence properties of Sm2O3-modified 0.965(K0.48Na0.52)(Nb0.95Sb0.05)–0.035Bi0.5(Na0.82K0.18)0.5HfO3 (KNNS–0.035BNKH) ceramics were investigated. Results showed that the phase structure of the Sm2O3-modified ceramics evol...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847820301192 |
| _version_ | 1827833919494422528 |
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| author | Wei Li Jigong Hao Peng Fu Juan Du Peng Li Chengchao Hu Wei Li Zhenxing Yue |
| author_facet | Wei Li Jigong Hao Peng Fu Juan Du Peng Li Chengchao Hu Wei Li Zhenxing Yue |
| author_sort | Wei Li |
| collection | DOAJ |
| description | In this work, the phase transition behavior and electrostrictive and photoluminescence properties of Sm2O3-modified 0.965(K0.48Na0.52)(Nb0.95Sb0.05)–0.035Bi0.5(Na0.82K0.18)0.5HfO3 (KNNS–0.035BNKH) ceramics were investigated. Results showed that the phase structure of the Sm2O3-modified ceramics evolved from coexisting orthogonal and tetragonal ferroelectric phases to a relaxor pseudocubic phase along with the strong destruction of the long-range ferroelectric order. Domain switching in Sm-modified ceramics with a relaxor pseudocubic phase became difficult, evident from the PFM images. Consequently, large electrostrictive effect with an electrostrictive coefficient of 0.022 m4/C2 was obtained in 1.0 mol% Sm-modified samples. With regard to long-term stability, the materials exhibited temperature-independent (20–100 °C) and fatigue−free (up to 105 cycles) behavior, which guarantees their application in various devices. The KNNS–0.035BNKH–xSm ceramics have the advantages of photoluminescence performance with bright orange emission under 407 nm visible light excitation. Overall, KNNS−0.035BNKH−xSm ceramics have broad application prospects in multifunction devices due to their large electrostrictive effect, excellent photoluminescence performance, and long-term stability. |
| first_indexed | 2024-03-12T05:40:23Z |
| format | Article |
| id | doaj.art-4049958fe1934374bd0e78e0613d1f73 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T05:40:23Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-4049958fe1934374bd0e78e0613d1f732023-09-03T06:04:49ZengElsevierJournal of Materiomics2352-84782020-12-0164768780Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramicsWei Li0Jigong Hao1Peng Fu2Juan Du3Peng Li4Chengchao Hu5Wei Li6Zhenxing Yue7School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, China; Corresponding author.School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, China; Corresponding author.State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing, 100084, ChinaIn this work, the phase transition behavior and electrostrictive and photoluminescence properties of Sm2O3-modified 0.965(K0.48Na0.52)(Nb0.95Sb0.05)–0.035Bi0.5(Na0.82K0.18)0.5HfO3 (KNNS–0.035BNKH) ceramics were investigated. Results showed that the phase structure of the Sm2O3-modified ceramics evolved from coexisting orthogonal and tetragonal ferroelectric phases to a relaxor pseudocubic phase along with the strong destruction of the long-range ferroelectric order. Domain switching in Sm-modified ceramics with a relaxor pseudocubic phase became difficult, evident from the PFM images. Consequently, large electrostrictive effect with an electrostrictive coefficient of 0.022 m4/C2 was obtained in 1.0 mol% Sm-modified samples. With regard to long-term stability, the materials exhibited temperature-independent (20–100 °C) and fatigue−free (up to 105 cycles) behavior, which guarantees their application in various devices. The KNNS–0.035BNKH–xSm ceramics have the advantages of photoluminescence performance with bright orange emission under 407 nm visible light excitation. Overall, KNNS−0.035BNKH−xSm ceramics have broad application prospects in multifunction devices due to their large electrostrictive effect, excellent photoluminescence performance, and long-term stability.http://www.sciencedirect.com/science/article/pii/S2352847820301192SinteringFerroelectric propertiesPiezoelectric propertiesActuators |
| spellingShingle | Wei Li Jigong Hao Peng Fu Juan Du Peng Li Chengchao Hu Wei Li Zhenxing Yue Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics Journal of Materiomics Sintering Ferroelectric properties Piezoelectric properties Actuators |
| title | Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics |
| title_full | Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics |
| title_fullStr | Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics |
| title_full_unstemmed | Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics |
| title_short | Large electrostrictive effect and strong photoluminescence properties in Sm2O3-modified lead-free potassium sodium niobate-based piezoelectric ceramics |
| title_sort | large electrostrictive effect and strong photoluminescence properties in sm2o3 modified lead free potassium sodium niobate based piezoelectric ceramics |
| topic | Sintering Ferroelectric properties Piezoelectric properties Actuators |
| url | http://www.sciencedirect.com/science/article/pii/S2352847820301192 |
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