A metastable pentagonal 2D material synthesized by symmetry-driven epitaxy
Most two-dimensional (2D) materials experimentally studied so far have hexagons as their building blocks. Only a few exceptions, such as PdSe 2 , are lower in energy in pentagonal phases and exhibit pentagons as building blocks. Although theory has predicted a large number of pentagonal 2D materials...
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| Veröffentlicht in: | Nature materials 2024-10, Vol.23 (10), p.1339-1346 |
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| creator | Liu, Lina Ji, Yujin Bianchi, Marco Hus, Saban M. Li, Zheshen Balog, Richard Miwa, Jill A. Hofmann, Philip Li, An-Ping Zemlyanov, Dmitry Y. Li, Youyong Chen, Yong P. |
| description | Most two-dimensional (2D) materials experimentally studied so far have hexagons as their building blocks. Only a few exceptions, such as PdSe
2
, are lower in energy in pentagonal phases and exhibit pentagons as building blocks. Although theory has predicted a large number of pentagonal 2D materials, many of these are metastable and their experimental realization is difficult. Here we report the successful synthesis of a metastable pentagonal 2D material, monolayer pentagonal PdTe
2
, by symmetry-driven epitaxy. Scanning tunnelling microscopy and complementary spectroscopy measurements are used to characterize this material, which demonstrates well-ordered low-symmetry atomic arrangements and is stabilized by lattice matching with the underlying Pd(100) substrate. Theoretical calculations, along with angle-resolved photoemission spectroscopy, reveal monolayer pentagonal PdTe
2
to be a semiconductor with an indirect bandgap of 1.05 eV. Our work opens an avenue for the synthesis of pentagon-based 2D materials and gives opportunities to explore their applications such as multifunctional nanoelectronics.
A metastable pentagonal PdTe
2
monolayer has been synthesized through symmetry-driven epitaxy, utilizing lattice matching with a Pd(100) substrate. The lattices, phonons and electronic structures of this phase have been studied. |
| doi_str_mv | 10.1038/s41563-024-01987-w |
| format | Article |
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2
, are lower in energy in pentagonal phases and exhibit pentagons as building blocks. Although theory has predicted a large number of pentagonal 2D materials, many of these are metastable and their experimental realization is difficult. Here we report the successful synthesis of a metastable pentagonal 2D material, monolayer pentagonal PdTe
2
, by symmetry-driven epitaxy. Scanning tunnelling microscopy and complementary spectroscopy measurements are used to characterize this material, which demonstrates well-ordered low-symmetry atomic arrangements and is stabilized by lattice matching with the underlying Pd(100) substrate. Theoretical calculations, along with angle-resolved photoemission spectroscopy, reveal monolayer pentagonal PdTe
2
to be a semiconductor with an indirect bandgap of 1.05 eV. Our work opens an avenue for the synthesis of pentagon-based 2D materials and gives opportunities to explore their applications such as multifunctional nanoelectronics.
A metastable pentagonal PdTe
2
monolayer has been synthesized through symmetry-driven epitaxy, utilizing lattice matching with a Pd(100) substrate. The lattices, phonons and electronic structures of this phase have been studied.</description><identifier>ISSN: 1476-1122</identifier><identifier>ISSN: 1476-4660</identifier><identifier>EISSN: 1476-4660</identifier><identifier>DOI: 10.1038/s41563-024-01987-w</identifier><identifier>PMID: 39191980</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/357/1018 ; 639/638/542/968 ; 639/766/119/544 ; Biomaterials ; Chemistry and Materials Science ; Condensed Matter Physics ; Electrons ; Epitaxy ; Hexagons ; Lattice matching ; Materials Science ; Monolayers ; Nanoelectronics ; Nanotechnology ; Optical and Electronic Materials ; Photoelectric emission ; Scanning tunneling microscopy ; Spectroscopy ; Spectrum analysis ; Substrates ; Symmetry ; Synthesis ; Two dimensional materials</subject><ispartof>Nature materials, 2024-10, Vol.23 (10), p.1339-1346</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Limited 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2024. The Author(s), under exclusive licence to Springer Nature Limited.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c256t-7ccdaecba18cd2151b8ef298c87776ca046d1134d2f42f0f362b224369070bc63</cites><orcidid>0000-0003-3177-2073 ; 0000-0003-4400-7493 ; 0000-0002-7374-8090 ; 0000-0002-8381-1620 ; 0000-0002-5248-2756 ; 0000-0001-6786-2957 ; 0000-0002-3410-9878 ; 0000-0002-7356-4179 ; 0000-0002-7367-5821 ; 0000-0002-1221-9195</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/s41563-024-01987-w$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1038/s41563-024-01987-w$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39191980$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Lina</creatorcontrib><creatorcontrib>Ji, Yujin</creatorcontrib><creatorcontrib>Bianchi, Marco</creatorcontrib><creatorcontrib>Hus, Saban M.</creatorcontrib><creatorcontrib>Li, Zheshen</creatorcontrib><creatorcontrib>Balog, Richard</creatorcontrib><creatorcontrib>Miwa, Jill A.</creatorcontrib><creatorcontrib>Hofmann, Philip</creatorcontrib><creatorcontrib>Li, An-Ping</creatorcontrib><creatorcontrib>Zemlyanov, Dmitry Y.</creatorcontrib><creatorcontrib>Li, Youyong</creatorcontrib><creatorcontrib>Chen, Yong P.</creatorcontrib><title>A metastable pentagonal 2D material synthesized by symmetry-driven epitaxy</title><title>Nature materials</title><addtitle>Nat. Mater</addtitle><addtitle>Nat Mater</addtitle><description>Most two-dimensional (2D) materials experimentally studied so far have hexagons as their building blocks. Only a few exceptions, such as PdSe
2
, are lower in energy in pentagonal phases and exhibit pentagons as building blocks. Although theory has predicted a large number of pentagonal 2D materials, many of these are metastable and their experimental realization is difficult. Here we report the successful synthesis of a metastable pentagonal 2D material, monolayer pentagonal PdTe
2
, by symmetry-driven epitaxy. Scanning tunnelling microscopy and complementary spectroscopy measurements are used to characterize this material, which demonstrates well-ordered low-symmetry atomic arrangements and is stabilized by lattice matching with the underlying Pd(100) substrate. Theoretical calculations, along with angle-resolved photoemission spectroscopy, reveal monolayer pentagonal PdTe
2
to be a semiconductor with an indirect bandgap of 1.05 eV. Our work opens an avenue for the synthesis of pentagon-based 2D materials and gives opportunities to explore their applications such as multifunctional nanoelectronics.
A metastable pentagonal PdTe
2
monolayer has been synthesized through symmetry-driven epitaxy, utilizing lattice matching with a Pd(100) substrate. The lattices, phonons and electronic structures of this phase have been studied.</description><subject>639/301/357/1018</subject><subject>639/638/542/968</subject><subject>639/766/119/544</subject><subject>Biomaterials</subject><subject>Chemistry and Materials Science</subject><subject>Condensed Matter Physics</subject><subject>Electrons</subject><subject>Epitaxy</subject><subject>Hexagons</subject><subject>Lattice matching</subject><subject>Materials Science</subject><subject>Monolayers</subject><subject>Nanoelectronics</subject><subject>Nanotechnology</subject><subject>Optical and Electronic Materials</subject><subject>Photoelectric emission</subject><subject>Scanning tunneling microscopy</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><subject>Substrates</subject><subject>Symmetry</subject><subject>Synthesis</subject><subject>Two dimensional materials</subject><issn>1476-1122</issn><issn>1476-4660</issn><issn>1476-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kLtOwzAUhi0EoqXwAgwoEgtLwJfEdsaq3IXEArPlOCclVW7YCSU8PS4pIDEgDz6Wv_Mf-0PomOBzgpm8cBGJOQsxjUJMEinC9Q6akkjwMOIc725rQiidoAPnVhhTEsd8H01YQvySeIru50EFnXadTksIWqg7vWxqXQb0Mqh0B7bwtRvq7gVc8QFZkA7-WPkeO4SZLd6gDqAtOv0-HKK9XJcOjrb7DD1fXz0tbsOHx5u7xfwhNDTmXSiMyTSYVBNpMv8gkkrIaSKNFEJwo3HEM0JYlNE8ojnOGacppRHjCRY4NZzN0NmY29rmtQfXqapwBspS19D0TjGcCBljymKPnv5BV01v_fc8RTZDvINNIB0pYxvnLOSqtUWl7aAIVhvTajStvGn1ZVqtfdPJNrpPK8h-Wr7VeoCNgPNX9RLs7-x_Yj8BXS2JNQ</recordid><startdate>20241001</startdate><enddate>20241001</enddate><creator>Liu, Lina</creator><creator>Ji, Yujin</creator><creator>Bianchi, Marco</creator><creator>Hus, Saban M.</creator><creator>Li, Zheshen</creator><creator>Balog, Richard</creator><creator>Miwa, Jill A.</creator><creator>Hofmann, Philip</creator><creator>Li, An-Ping</creator><creator>Zemlyanov, Dmitry Y.</creator><creator>Li, Youyong</creator><creator>Chen, Yong P.</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-3177-2073</orcidid><orcidid>https://orcid.org/0000-0003-4400-7493</orcidid><orcidid>https://orcid.org/0000-0002-7374-8090</orcidid><orcidid>https://orcid.org/0000-0002-8381-1620</orcidid><orcidid>https://orcid.org/0000-0002-5248-2756</orcidid><orcidid>https://orcid.org/0000-0001-6786-2957</orcidid><orcidid>https://orcid.org/0000-0002-3410-9878</orcidid><orcidid>https://orcid.org/0000-0002-7356-4179</orcidid><orcidid>https://orcid.org/0000-0002-7367-5821</orcidid><orcidid>https://orcid.org/0000-0002-1221-9195</orcidid></search><sort><creationdate>20241001</creationdate><title>A metastable pentagonal 2D material synthesized by symmetry-driven epitaxy</title><author>Liu, Lina ; 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Mater</stitle><addtitle>Nat Mater</addtitle><date>2024-10-01</date><risdate>2024</risdate><volume>23</volume><issue>10</issue><spage>1339</spage><epage>1346</epage><pages>1339-1346</pages><issn>1476-1122</issn><issn>1476-4660</issn><eissn>1476-4660</eissn><abstract>Most two-dimensional (2D) materials experimentally studied so far have hexagons as their building blocks. Only a few exceptions, such as PdSe
2
, are lower in energy in pentagonal phases and exhibit pentagons as building blocks. Although theory has predicted a large number of pentagonal 2D materials, many of these are metastable and their experimental realization is difficult. Here we report the successful synthesis of a metastable pentagonal 2D material, monolayer pentagonal PdTe
2
, by symmetry-driven epitaxy. Scanning tunnelling microscopy and complementary spectroscopy measurements are used to characterize this material, which demonstrates well-ordered low-symmetry atomic arrangements and is stabilized by lattice matching with the underlying Pd(100) substrate. Theoretical calculations, along with angle-resolved photoemission spectroscopy, reveal monolayer pentagonal PdTe
2
to be a semiconductor with an indirect bandgap of 1.05 eV. Our work opens an avenue for the synthesis of pentagon-based 2D materials and gives opportunities to explore their applications such as multifunctional nanoelectronics.
A metastable pentagonal PdTe
2
monolayer has been synthesized through symmetry-driven epitaxy, utilizing lattice matching with a Pd(100) substrate. The lattices, phonons and electronic structures of this phase have been studied.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>39191980</pmid><doi>10.1038/s41563-024-01987-w</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-3177-2073</orcidid><orcidid>https://orcid.org/0000-0003-4400-7493</orcidid><orcidid>https://orcid.org/0000-0002-7374-8090</orcidid><orcidid>https://orcid.org/0000-0002-8381-1620</orcidid><orcidid>https://orcid.org/0000-0002-5248-2756</orcidid><orcidid>https://orcid.org/0000-0001-6786-2957</orcidid><orcidid>https://orcid.org/0000-0002-3410-9878</orcidid><orcidid>https://orcid.org/0000-0002-7356-4179</orcidid><orcidid>https://orcid.org/0000-0002-7367-5821</orcidid><orcidid>https://orcid.org/0000-0002-1221-9195</orcidid></addata></record> |
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| subjects | 639/301/357/1018 639/638/542/968 639/766/119/544 Biomaterials Chemistry and Materials Science Condensed Matter Physics Electrons Epitaxy Hexagons Lattice matching Materials Science Monolayers Nanoelectronics Nanotechnology Optical and Electronic Materials Photoelectric emission Scanning tunneling microscopy Spectroscopy Spectrum analysis Substrates Symmetry Synthesis Two dimensional materials |
| title | A metastable pentagonal 2D material synthesized by symmetry-driven epitaxy |
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