Self-assembly of 1T/1H superlattices in transition metal dichalcogenides
Abstract Heterostructures and superlattices composed of layered transition metal dichalcogenides (TMDs), celebrated for their superior emergent properties over individual components, offer significant promise for the development of multifunctional electronic devices. However, conventional fabricatio...
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Nature Portfolio
2024-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54948-x |
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| author | Chaojie Luo Guohua Cao Beilin Wang Lili Jiang Hengyi Zhao Tongrui Li Xiaolin Tai Zhiyong Lin Yue Lin Zhe Sun Ping Cui Hui Zhang Zhenyu Zhang Changgan Zeng |
| author_facet | Chaojie Luo Guohua Cao Beilin Wang Lili Jiang Hengyi Zhao Tongrui Li Xiaolin Tai Zhiyong Lin Yue Lin Zhe Sun Ping Cui Hui Zhang Zhenyu Zhang Changgan Zeng |
| author_sort | Chaojie Luo |
| collection | DOAJ |
| description | Abstract Heterostructures and superlattices composed of layered transition metal dichalcogenides (TMDs), celebrated for their superior emergent properties over individual components, offer significant promise for the development of multifunctional electronic devices. However, conventional fabrication techniques for these structures depend on layer-by-layer artificial construction and are hindered by their complexity and inefficiency. Herein, we introduce a universal strategy for the automated synthesis of TMD superlattice single crystals through self-assembly, exemplified by the NbSe2-x Te x 1T/1H superlattice. The core principle of this strategy is to balance the formation energies of T (octahedral) and H (trigonal prismatic) phases. By adjusting the Te to Se stoichiometric ratio in NbSe2-x Te x , we reduce the formation energy disparity between the T and H phases, enabling the self-assembly of 1T and 1H layers into a 1T/1H superlattice. The resulting 1T/1H superlattices retain electronic characteristics of both 1T and 1H layers. We further validate the universality of this strategy by achieving 1T/1H superlattices through substituting Nb atoms in NbSe2 with V or Ti atoms. This self-assembly for superlattice crystal synthesis approach could extend to other layered materials, opening new avenues for efficient fabrication and broad applications of superlattices. |
| format | Article |
| id | doaj-art-31072c7779f044bf8ea39895cd17eba9 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-31072c7779f044bf8ea39895cd17eba92025-08-20T02:20:41ZengNature PortfolioNature Communications2041-17232024-12-011511710.1038/s41467-024-54948-xSelf-assembly of 1T/1H superlattices in transition metal dichalcogenidesChaojie Luo0Guohua Cao1Beilin Wang2Lili Jiang3Hengyi Zhao4Tongrui Li5Xiaolin Tai6Zhiyong Lin7Yue Lin8Zhe Sun9Ping Cui10Hui Zhang11Zhenyu Zhang12Changgan Zeng13International Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaDepartment of Chemistry, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaInternational Center for Quantum Design of Functional Materials (ICQD), Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of ChinaAbstract Heterostructures and superlattices composed of layered transition metal dichalcogenides (TMDs), celebrated for their superior emergent properties over individual components, offer significant promise for the development of multifunctional electronic devices. However, conventional fabrication techniques for these structures depend on layer-by-layer artificial construction and are hindered by their complexity and inefficiency. Herein, we introduce a universal strategy for the automated synthesis of TMD superlattice single crystals through self-assembly, exemplified by the NbSe2-x Te x 1T/1H superlattice. The core principle of this strategy is to balance the formation energies of T (octahedral) and H (trigonal prismatic) phases. By adjusting the Te to Se stoichiometric ratio in NbSe2-x Te x , we reduce the formation energy disparity between the T and H phases, enabling the self-assembly of 1T and 1H layers into a 1T/1H superlattice. The resulting 1T/1H superlattices retain electronic characteristics of both 1T and 1H layers. We further validate the universality of this strategy by achieving 1T/1H superlattices through substituting Nb atoms in NbSe2 with V or Ti atoms. This self-assembly for superlattice crystal synthesis approach could extend to other layered materials, opening new avenues for efficient fabrication and broad applications of superlattices.https://doi.org/10.1038/s41467-024-54948-x |
| spellingShingle | Chaojie Luo Guohua Cao Beilin Wang Lili Jiang Hengyi Zhao Tongrui Li Xiaolin Tai Zhiyong Lin Yue Lin Zhe Sun Ping Cui Hui Zhang Zhenyu Zhang Changgan Zeng Self-assembly of 1T/1H superlattices in transition metal dichalcogenides Nature Communications |
| title | Self-assembly of 1T/1H superlattices in transition metal dichalcogenides |
| title_full | Self-assembly of 1T/1H superlattices in transition metal dichalcogenides |
| title_fullStr | Self-assembly of 1T/1H superlattices in transition metal dichalcogenides |
| title_full_unstemmed | Self-assembly of 1T/1H superlattices in transition metal dichalcogenides |
| title_short | Self-assembly of 1T/1H superlattices in transition metal dichalcogenides |
| title_sort | self assembly of 1t 1h superlattices in transition metal dichalcogenides |
| url | https://doi.org/10.1038/s41467-024-54948-x |
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