Breaking the symmetry of colloidal 2D nanoplatelets: Twist induced quantum coupling
Twist provides a new degree of freedom for nanomaterial modifications, which can provide novel physical properties. Here, colloidal two-dimensional (2D) twisted CdSe nanoplatelets (NPLs) are successfully fabricated and their morphology can change from totally flat to edge-twisted, and then to middle...
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| Veröffentlicht in: | Nano research 2023-07, Vol.16 (7), p.10522-10529 |
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| creator | Nazir, Zahid Lun, Yingzhuo Li, Jialu Yang, Gaoling Liu, Mingrui Li, Shuqi Tang, Gang Zhang, Guofeng Hong, Jiawang Xiao, Liantuan Zhong, Haizheng |
| description | Twist provides a new degree of freedom for nanomaterial modifications, which can provide novel physical properties. Here, colloidal two-dimensional (2D) twisted CdSe nanoplatelets (NPLs) are successfully fabricated and their morphology can change from totally flat to edge-twisted, and then to middle-twisted with prolonged reaction time. By combining experiments and corresponding theoretical analyses, we have established the length-dependent relationships between the surface energy and twist, with a critical lateral dimension of 30 nm. We found that the defects formed during the synthesis process play a vital role in generating intense stress that develops a strong torsion tensor around the edges, resulting in edge-twisted and final middle-twisted NPLs. Furthermore, due to the geometric asymmetry of twisted NPLs, the dissymmetry factor of single particle NPLs can reach up to 0.334. Specifically, quantum coupling occurs in middle-twisted NPLs by twisting one parent NPL into two daughter NPLs, which are structurally and electronically coupled. This work not only further deepens our understanding of the twist mechanism of 2D NPLs during colloidal synthesis, but also opens a pathway for applications using twistronics and quantum technology. |
| doi_str_mv | 10.1007/s12274-023-5529-x |
| format | Article |
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Here, colloidal two-dimensional (2D) twisted CdSe nanoplatelets (NPLs) are successfully fabricated and their morphology can change from totally flat to edge-twisted, and then to middle-twisted with prolonged reaction time. By combining experiments and corresponding theoretical analyses, we have established the length-dependent relationships between the surface energy and twist, with a critical lateral dimension of 30 nm. We found that the defects formed during the synthesis process play a vital role in generating intense stress that develops a strong torsion tensor around the edges, resulting in edge-twisted and final middle-twisted NPLs. Furthermore, due to the geometric asymmetry of twisted NPLs, the dissymmetry factor of single particle NPLs can reach up to 0.334. Specifically, quantum coupling occurs in middle-twisted NPLs by twisting one parent NPL into two daughter NPLs, which are structurally and electronically coupled. This work not only further deepens our understanding of the twist mechanism of 2D NPLs during colloidal synthesis, but also opens a pathway for applications using twistronics and quantum technology.</description><identifier>ISSN: 1998-0124</identifier><identifier>EISSN: 1998-0000</identifier><identifier>DOI: 10.1007/s12274-023-5529-x</identifier><language>eng</language><publisher>Beijing: Tsinghua University Press</publisher><subject>Asymmetry ; Atomic/Molecular Structure and Spectra ; Biomedicine ; Biotechnology ; Chemistry and Materials Science ; Colloids ; Condensed Matter Physics ; Coupling ; Materials Science ; Nanomaterials ; Nanotechnology ; Physical properties ; Platelets (materials) ; Research Article ; Surface energy ; Surface properties ; Synthesis ; Tensors</subject><ispartof>Nano research, 2023-07, Vol.16 (7), p.10522-10529</ispartof><rights>Tsinghua University Press 2023</rights><rights>Tsinghua University Press 2023.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-c10dca19acbd115ef23f75504ddf8283689ba127d48d01caac882ef489c901923</citedby><cites>FETCH-LOGICAL-c316t-c10dca19acbd115ef23f75504ddf8283689ba127d48d01caac882ef489c901923</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12274-023-5529-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12274-023-5529-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Nazir, Zahid</creatorcontrib><creatorcontrib>Lun, Yingzhuo</creatorcontrib><creatorcontrib>Li, Jialu</creatorcontrib><creatorcontrib>Yang, Gaoling</creatorcontrib><creatorcontrib>Liu, Mingrui</creatorcontrib><creatorcontrib>Li, Shuqi</creatorcontrib><creatorcontrib>Tang, Gang</creatorcontrib><creatorcontrib>Zhang, Guofeng</creatorcontrib><creatorcontrib>Hong, Jiawang</creatorcontrib><creatorcontrib>Xiao, Liantuan</creatorcontrib><creatorcontrib>Zhong, Haizheng</creatorcontrib><title>Breaking the symmetry of colloidal 2D nanoplatelets: Twist induced quantum coupling</title><title>Nano research</title><addtitle>Nano Res</addtitle><description>Twist provides a new degree of freedom for nanomaterial modifications, which can provide novel physical properties. Here, colloidal two-dimensional (2D) twisted CdSe nanoplatelets (NPLs) are successfully fabricated and their morphology can change from totally flat to edge-twisted, and then to middle-twisted with prolonged reaction time. By combining experiments and corresponding theoretical analyses, we have established the length-dependent relationships between the surface energy and twist, with a critical lateral dimension of 30 nm. We found that the defects formed during the synthesis process play a vital role in generating intense stress that develops a strong torsion tensor around the edges, resulting in edge-twisted and final middle-twisted NPLs. Furthermore, due to the geometric asymmetry of twisted NPLs, the dissymmetry factor of single particle NPLs can reach up to 0.334. Specifically, quantum coupling occurs in middle-twisted NPLs by twisting one parent NPL into two daughter NPLs, which are structurally and electronically coupled. This work not only further deepens our understanding of the twist mechanism of 2D NPLs during colloidal synthesis, but also opens a pathway for applications using twistronics and quantum technology.</description><subject>Asymmetry</subject><subject>Atomic/Molecular Structure and Spectra</subject><subject>Biomedicine</subject><subject>Biotechnology</subject><subject>Chemistry and Materials Science</subject><subject>Colloids</subject><subject>Condensed Matter Physics</subject><subject>Coupling</subject><subject>Materials Science</subject><subject>Nanomaterials</subject><subject>Nanotechnology</subject><subject>Physical properties</subject><subject>Platelets (materials)</subject><subject>Research Article</subject><subject>Surface energy</subject><subject>Surface 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Res</stitle><date>2023-07-01</date><risdate>2023</risdate><volume>16</volume><issue>7</issue><spage>10522</spage><epage>10529</epage><pages>10522-10529</pages><issn>1998-0124</issn><eissn>1998-0000</eissn><abstract>Twist provides a new degree of freedom for nanomaterial modifications, which can provide novel physical properties. Here, colloidal two-dimensional (2D) twisted CdSe nanoplatelets (NPLs) are successfully fabricated and their morphology can change from totally flat to edge-twisted, and then to middle-twisted with prolonged reaction time. By combining experiments and corresponding theoretical analyses, we have established the length-dependent relationships between the surface energy and twist, with a critical lateral dimension of 30 nm. We found that the defects formed during the synthesis process play a vital role in generating intense stress that develops a strong torsion tensor around the edges, resulting in edge-twisted and final middle-twisted NPLs. Furthermore, due to the geometric asymmetry of twisted NPLs, the dissymmetry factor of single particle NPLs can reach up to 0.334. Specifically, quantum coupling occurs in middle-twisted NPLs by twisting one parent NPL into two daughter NPLs, which are structurally and electronically coupled. This work not only further deepens our understanding of the twist mechanism of 2D NPLs during colloidal synthesis, but also opens a pathway for applications using twistronics and quantum technology.</abstract><cop>Beijing</cop><pub>Tsinghua University Press</pub><doi>10.1007/s12274-023-5529-x</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 1998-0124 |
| ispartof | Nano research, 2023-07, Vol.16 (7), p.10522-10529 |
| issn | 1998-0124 1998-0000 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Asymmetry Atomic/Molecular Structure and Spectra Biomedicine Biotechnology Chemistry and Materials Science Colloids Condensed Matter Physics Coupling Materials Science Nanomaterials Nanotechnology Physical properties Platelets (materials) Research Article Surface energy Surface properties Synthesis Tensors |
| title | Breaking the symmetry of colloidal 2D nanoplatelets: Twist induced quantum coupling |
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