Multifunctional Sm3+ modified layered perovskite La2Ti2O7 single crystals: Enhanced piezoelectric performance and color-stable orange emission
The demand for multifunctional materials with optical and electrical properties in industrial high-temperature applications has witnessed a rapid upsurge. Among ultra-high Curie temperature perovskite-like layered structure piezoelectrics, La2Ti2O7 (LTO) single crystal possesses the highest piezoele...
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| Veröffentlicht in: | Applied physics letters 2024-12, Vol.125 (26) |
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| container_title | Applied physics letters |
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| creator | Ji, Yunqi Wang, Xiaohan Liu, Runru Ge, Wenwei Sun, Enwei Li, Xiaohe Tang, Wenting Li, Xinyang Wang, Xin Li, Fangfei Li, Liang Zhou, Qiang |
| description | The demand for multifunctional materials with optical and electrical properties in industrial high-temperature applications has witnessed a rapid upsurge. Among ultra-high Curie temperature perovskite-like layered structure piezoelectrics, La2Ti2O7 (LTO) single crystal possesses the highest piezoelectric coefficient, but the lack of luminescence limits its optical applications. In this work, by combining experiments and first-principles calculations, we find that Sm3+ doped LTO single crystals not only create strong orange emission with high-color-purity and high-color-stability under high temperature/pressure, but also achieve higher piezoelectric coefficient of 21.7 pC/N at 298 K and 25.6 pC/N at 773 K, accompanied by polarization enhancement originating from inner TiO6 octahedral twisting. In addition, systematic high-temperature in situ electrical measurements showed that Sm3+ doping also contributes to weakening the adverse effects of ferroelectric–ferroelectric phase transition on piezoelectricity, dielectricity, and conductivity. Our work provides insights into the performance optimization mechanisms of ultra-high Curie temperature piezoelectrics and paves the way for the development of high-performance electro-optic integrated and coupled devices for applications under extreme conditions. |
| doi_str_mv | 10.1063/5.0244121 |
| format | Article |
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Among ultra-high Curie temperature perovskite-like layered structure piezoelectrics, La2Ti2O7 (LTO) single crystal possesses the highest piezoelectric coefficient, but the lack of luminescence limits its optical applications. In this work, by combining experiments and first-principles calculations, we find that Sm3+ doped LTO single crystals not only create strong orange emission with high-color-purity and high-color-stability under high temperature/pressure, but also achieve higher piezoelectric coefficient of 21.7 pC/N at 298 K and 25.6 pC/N at 773 K, accompanied by polarization enhancement originating from inner TiO6 octahedral twisting. In addition, systematic high-temperature in situ electrical measurements showed that Sm3+ doping also contributes to weakening the adverse effects of ferroelectric–ferroelectric phase transition on piezoelectricity, dielectricity, and conductivity. Our work provides insights into the performance optimization mechanisms of ultra-high Curie temperature piezoelectrics and paves the way for the development of high-performance electro-optic integrated and coupled devices for applications under extreme conditions.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0244121</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Color ; Curie temperature ; Electrical measurement ; Electrical properties ; Electrical resistivity ; Emission spectra ; Ferroelectric materials ; Ferroelectricity ; First principles ; High temperature ; Multifunctional materials ; Optical properties ; Perovskites ; Phase transitions ; Piezoelectricity ; Single crystals</subject><ispartof>Applied physics letters, 2024-12, Vol.125 (26)</ispartof><rights>Author(s)</rights><rights>2025 Author(s). Published under an exclusive license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c182t-6b6b0777137796904b8cdc609ea3a9c588a47cf41036100cf9744e8d7216af0c3</cites><orcidid>0000-0002-5117-9739 ; 0000-0002-9147-2243 ; 0009-0001-4871-231X ; 0000-0002-0342-3872 ; 0000-0003-1731-0155 ; 0000-0002-1993-6971 ; 0000-0001-7845-2267</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/5.0244121$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,776,780,790,4498,27901,27902,76127</link.rule.ids></links><search><creatorcontrib>Ji, Yunqi</creatorcontrib><creatorcontrib>Wang, Xiaohan</creatorcontrib><creatorcontrib>Liu, Runru</creatorcontrib><creatorcontrib>Ge, Wenwei</creatorcontrib><creatorcontrib>Sun, Enwei</creatorcontrib><creatorcontrib>Li, Xiaohe</creatorcontrib><creatorcontrib>Tang, Wenting</creatorcontrib><creatorcontrib>Li, Xinyang</creatorcontrib><creatorcontrib>Wang, Xin</creatorcontrib><creatorcontrib>Li, Fangfei</creatorcontrib><creatorcontrib>Li, Liang</creatorcontrib><creatorcontrib>Zhou, Qiang</creatorcontrib><title>Multifunctional Sm3+ modified layered perovskite La2Ti2O7 single crystals: Enhanced piezoelectric performance and color-stable orange emission</title><title>Applied physics letters</title><description>The demand for multifunctional materials with optical and electrical properties in industrial high-temperature applications has witnessed a rapid upsurge. Among ultra-high Curie temperature perovskite-like layered structure piezoelectrics, La2Ti2O7 (LTO) single crystal possesses the highest piezoelectric coefficient, but the lack of luminescence limits its optical applications. In this work, by combining experiments and first-principles calculations, we find that Sm3+ doped LTO single crystals not only create strong orange emission with high-color-purity and high-color-stability under high temperature/pressure, but also achieve higher piezoelectric coefficient of 21.7 pC/N at 298 K and 25.6 pC/N at 773 K, accompanied by polarization enhancement originating from inner TiO6 octahedral twisting. In addition, systematic high-temperature in situ electrical measurements showed that Sm3+ doping also contributes to weakening the adverse effects of ferroelectric–ferroelectric phase transition on piezoelectricity, dielectricity, and conductivity. Our work provides insights into the performance optimization mechanisms of ultra-high Curie temperature piezoelectrics and paves the way for the development of high-performance electro-optic integrated and coupled devices for applications under extreme conditions.</description><subject>Color</subject><subject>Curie temperature</subject><subject>Electrical measurement</subject><subject>Electrical properties</subject><subject>Electrical resistivity</subject><subject>Emission spectra</subject><subject>Ferroelectric materials</subject><subject>Ferroelectricity</subject><subject>First principles</subject><subject>High temperature</subject><subject>Multifunctional materials</subject><subject>Optical properties</subject><subject>Perovskites</subject><subject>Phase transitions</subject><subject>Piezoelectricity</subject><subject>Single crystals</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OwzAQhC0EEqVw4A0scQKU4r_EMTdUlR-pqAfKOXIdu7gkcbEdpPIQPDOO2jOn1Wq_Ge0MAJcYTTAq6F0-QYQxTPARGGHEeUYxLo_BCCFEs0Lk-BSchbBJa04oHYHf176J1vSditZ1soFvLb2FrautsbqGjdxpn-ZWe_cdPm3UcC7J0pIFh8F260ZD5Xchyibcw1n3ITs10Fb_ON1oFb1Vg9Y43w4nKLsaKtc4nyXNKqmdl91aQ93aENID5-DEJC99cZhj8P44W06fs_ni6WX6MM8ULknMilWxSuE4ppyLQiC2KlWtCiS0pFKovCwl48owjGiBEVJGcMZ0WXOCC2mQomNwtffdevfV6xCrjet9yh8qipkgAueMJOp6TynvQvDaVFtvW-l3FUbVUHeVV4e6E3uzZ4OyUQ5l_gP_AU0IgHg</recordid><startdate>20241223</startdate><enddate>20241223</enddate><creator>Ji, Yunqi</creator><creator>Wang, Xiaohan</creator><creator>Liu, Runru</creator><creator>Ge, Wenwei</creator><creator>Sun, Enwei</creator><creator>Li, Xiaohe</creator><creator>Tang, Wenting</creator><creator>Li, Xinyang</creator><creator>Wang, Xin</creator><creator>Li, Fangfei</creator><creator>Li, Liang</creator><creator>Zhou, Qiang</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5117-9739</orcidid><orcidid>https://orcid.org/0000-0002-9147-2243</orcidid><orcidid>https://orcid.org/0009-0001-4871-231X</orcidid><orcidid>https://orcid.org/0000-0002-0342-3872</orcidid><orcidid>https://orcid.org/0000-0003-1731-0155</orcidid><orcidid>https://orcid.org/0000-0002-1993-6971</orcidid><orcidid>https://orcid.org/0000-0001-7845-2267</orcidid></search><sort><creationdate>20241223</creationdate><title>Multifunctional Sm3+ modified layered perovskite La2Ti2O7 single crystals: Enhanced piezoelectric performance and color-stable orange emission</title><author>Ji, Yunqi ; 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Among ultra-high Curie temperature perovskite-like layered structure piezoelectrics, La2Ti2O7 (LTO) single crystal possesses the highest piezoelectric coefficient, but the lack of luminescence limits its optical applications. In this work, by combining experiments and first-principles calculations, we find that Sm3+ doped LTO single crystals not only create strong orange emission with high-color-purity and high-color-stability under high temperature/pressure, but also achieve higher piezoelectric coefficient of 21.7 pC/N at 298 K and 25.6 pC/N at 773 K, accompanied by polarization enhancement originating from inner TiO6 octahedral twisting. In addition, systematic high-temperature in situ electrical measurements showed that Sm3+ doping also contributes to weakening the adverse effects of ferroelectric–ferroelectric phase transition on piezoelectricity, dielectricity, and conductivity. 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| subjects | Color Curie temperature Electrical measurement Electrical properties Electrical resistivity Emission spectra Ferroelectric materials Ferroelectricity First principles High temperature Multifunctional materials Optical properties Perovskites Phase transitions Piezoelectricity Single crystals |
| title | Multifunctional Sm3+ modified layered perovskite La2Ti2O7 single crystals: Enhanced piezoelectric performance and color-stable orange emission |
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