Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity
Sr3Ti2O7 Ruddlesden Popper (RP) compound offers promising applications for electronic materials, in which the modification of the electronic band structure of the respective crystal significantly affects its functionalities. The molten salt technique successfully synthesized two-layer Ruddlesden Pop...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016423002189 |
| _version_ | 1797447979385225216 |
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| author | Yulia Eka Putri Reza Elvinda Tio Putra Wendari Zulhadjri |
| author_facet | Yulia Eka Putri Reza Elvinda Tio Putra Wendari Zulhadjri |
| author_sort | Yulia Eka Putri |
| collection | DOAJ |
| description | Sr3Ti2O7 Ruddlesden Popper (RP) compound offers promising applications for electronic materials, in which the modification of the electronic band structure of the respective crystal significantly affects its functionalities. The molten salt technique successfully synthesized two-layer Ruddlesden Popper Sr3-xBixTi2O7 (x = 0, 0.0125, 0.025, 0,05, and 0.1) through the A-site cation substitution. The crystal structure analysis indicates that 0.1 mole Bi doping at the Sr site results in higher crystallinity and matches Sr3Ti2O7 RP phase standard data. The Bi3+ doping on the Sr2+ sites aims to increase the number of charge carriers and enhance the electrical conductivity of the compound. The changes in the electronic band structure via substitution with a high valence dopant on strontium cations succeeded in changing the bandgap energy of the synthesized compound. The images of the sintered body show dense pellet samples with sub-micron cubic particles. Electrical conductivity measurements demonstrated that the Bi-doped compounds exhibited a higher electrical conductivity threefold compared with the undoped Sr3Ti2O7 sample. These findings present the simple synthesis method to obtain Bi-doped Sr3Ti2O7 compounds with tunable electrical conductivity. |
| first_indexed | 2024-03-09T14:03:45Z |
| format | Article |
| id | doaj.art-44e193aa845d4613a0df3169e6dac9f1 |
| institution | Directory Open Access Journal |
| issn | 2666-0164 |
| language | English |
| last_indexed | 2024-03-09T14:03:45Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj.art-44e193aa845d4613a0df3169e6dac9f12023-11-30T05:11:18ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642023-12-018100513Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivityYulia Eka Putri0Reza Elvinda1Tio Putra Wendari2 Zulhadjri3Corresponding author.; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, IndonesiaSr3Ti2O7 Ruddlesden Popper (RP) compound offers promising applications for electronic materials, in which the modification of the electronic band structure of the respective crystal significantly affects its functionalities. The molten salt technique successfully synthesized two-layer Ruddlesden Popper Sr3-xBixTi2O7 (x = 0, 0.0125, 0.025, 0,05, and 0.1) through the A-site cation substitution. The crystal structure analysis indicates that 0.1 mole Bi doping at the Sr site results in higher crystallinity and matches Sr3Ti2O7 RP phase standard data. The Bi3+ doping on the Sr2+ sites aims to increase the number of charge carriers and enhance the electrical conductivity of the compound. The changes in the electronic band structure via substitution with a high valence dopant on strontium cations succeeded in changing the bandgap energy of the synthesized compound. The images of the sintered body show dense pellet samples with sub-micron cubic particles. Electrical conductivity measurements demonstrated that the Bi-doped compounds exhibited a higher electrical conductivity threefold compared with the undoped Sr3Ti2O7 sample. These findings present the simple synthesis method to obtain Bi-doped Sr3Ti2O7 compounds with tunable electrical conductivity.http://www.sciencedirect.com/science/article/pii/S2666016423002189Ruddlesden-Popper phaseCation substitutionElectrical conductivityBandgapMolten salt |
| spellingShingle | Yulia Eka Putri Reza Elvinda Tio Putra Wendari Zulhadjri Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity Case Studies in Chemical and Environmental Engineering Ruddlesden-Popper phase Cation substitution Electrical conductivity Bandgap Molten salt |
| title | Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity |
| title_full | Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity |
| title_fullStr | Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity |
| title_full_unstemmed | Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity |
| title_short | Bismuth-substituted Sr3Ti2O7 Ruddlesden-Popper oxide prepared by molten salt method with tunable electrical conductivity |
| title_sort | bismuth substituted sr3ti2o7 ruddlesden popper oxide prepared by molten salt method with tunable electrical conductivity |
| topic | Ruddlesden-Popper phase Cation substitution Electrical conductivity Bandgap Molten salt |
| url | http://www.sciencedirect.com/science/article/pii/S2666016423002189 |
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