Enantiopure distorted ribbon-shaped nanographene combining two-photon absorption-based upconversion and circularly polarized luminescence
Herein we describe a distorted ribbon-shaped nanographene exhibiting unprecedented combination of optical properties in graphene-related materials, namely upconversion based on two-photon absorption (TPA-UC) together with circularly polarized luminescence (CPL). The compound is a graphene molecule o...
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| Veröffentlicht in: | Chemical science (Cambridge) 2018, Vol.9 (16), p.3917-3924 |
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| creator | Cruz, Carlos M Márquez, Irene R Mariz, Inês F. A Blanco, Victor Sánchez-Sánchez, Carlos Sobrado, Jesús M Martín-Gago, José A Cuerva, Juan M Maçôas, Ermelinda Campaña, Araceli G |
| description | Herein we describe a distorted ribbon-shaped nanographene exhibiting unprecedented combination of optical properties in graphene-related materials, namely upconversion based on two-photon absorption (TPA-UC) together with circularly polarized luminescence (CPL). The compound is a graphene molecule of
ca.
2 nm length and 1 nm width with edge defects that promote the distortion of the otherwise planar lattice. The edge defects are an aromatic saddle-shaped ketone unit and a [5]carbohelicene moiety. This system is shown to combine two-photon absorption and circularly polarized luminescence and a remarkably long emission lifetime of 21.5 ns. The [5]helicene is responsible for the chiroptical activity while the push-pull geometry and the extended network of sp
2
carbons are factors favoring the nonlinear absorption. Electronic structure theoretical calculations support the interpretation of the results.
Including defects in a ribbon-shaped nanographene leads to a new combination of optical properties: TPA-based upconversion and CPL. |
| doi_str_mv | 10.1039/c8sc00427g |
| format | Article |
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ca.
2 nm length and 1 nm width with edge defects that promote the distortion of the otherwise planar lattice. The edge defects are an aromatic saddle-shaped ketone unit and a [5]carbohelicene moiety. This system is shown to combine two-photon absorption and circularly polarized luminescence and a remarkably long emission lifetime of 21.5 ns. The [5]helicene is responsible for the chiroptical activity while the push-pull geometry and the extended network of sp
2
carbons are factors favoring the nonlinear absorption. Electronic structure theoretical calculations support the interpretation of the results.
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ca.
2 nm length and 1 nm width with edge defects that promote the distortion of the otherwise planar lattice. The edge defects are an aromatic saddle-shaped ketone unit and a [5]carbohelicene moiety. This system is shown to combine two-photon absorption and circularly polarized luminescence and a remarkably long emission lifetime of 21.5 ns. The [5]helicene is responsible for the chiroptical activity while the push-pull geometry and the extended network of sp
2
carbons are factors favoring the nonlinear absorption. Electronic structure theoretical calculations support the interpretation of the results.
Including defects in a ribbon-shaped nanographene leads to a new combination of optical properties: TPA-based upconversion and CPL.</description><subject>Chemistry</subject><subject>Circular polarization</subject><subject>Defects</subject><subject>Distortion</subject><subject>Electronic structure</subject><subject>Graphene</subject><subject>Luminescence</subject><subject>Optical properties</subject><subject>Photon absorption</subject><subject>Upconversion</subject><issn>2041-6520</issn><issn>2041-6539</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpdkk1LHTEUhkOpqFg37lsG3IgwNZ93JhuhXKwWBBe6D5lMcm9kJkmTGcX-A_91j169_TiLfHCevDlvThA6IvgrwUyembYYjDltVh_QPsWc1AvB5MftmuI9dFjKPYZgjAja7KI9KpsWC8r20fNF0GHyMc3ZVr0vU8yT7avsuy6Guqx1gh0gcZV1WttgKxPHzgcfVtX0GOu0jlMMle5KzAl0Qt3pAkfmZGJ4sLn4l2zoK-OzmQedh6cqRZj9L6CGefTBFmODsZ_QjtNDsYdv8wG6-35xt7yqr28ufyy_XdeGSz7V1BomCNcNheDUCWc15b1uuJSt444IBs6EkzA2zi0WvGsM7kW7ANNdzw7Q-UY2zd1oe7h6ynpQKftR5ycVtVf_ZoJfq1V8UEIy3rIGBE7eBHL8OdsyqdGDg2HQwca5KHh3ShmXLQf0-D_0Ps45gDugGJaiJYIAdbqhTI6lZOu2xRCsXnqslu3t8rXHlwB_-bv8LfreUQA-b4BczDb755Ow33VFr4o</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>Cruz, Carlos M</creator><creator>Márquez, Irene R</creator><creator>Mariz, Inês F. 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A ; Blanco, Victor ; Sánchez-Sánchez, Carlos ; Sobrado, Jesús M ; Martín-Gago, José A ; Cuerva, Juan M ; Maçôas, Ermelinda ; Campaña, Araceli G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c494t-2ec3514a7222242f5fea24da74998f4f1530525f90527ff664b7c0d586297bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Chemistry</topic><topic>Circular polarization</topic><topic>Defects</topic><topic>Distortion</topic><topic>Electronic structure</topic><topic>Graphene</topic><topic>Luminescence</topic><topic>Optical properties</topic><topic>Photon absorption</topic><topic>Upconversion</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cruz, Carlos M</creatorcontrib><creatorcontrib>Márquez, Irene R</creatorcontrib><creatorcontrib>Mariz, Inês F. A</creatorcontrib><creatorcontrib>Blanco, Victor</creatorcontrib><creatorcontrib>Sánchez-Sánchez, Carlos</creatorcontrib><creatorcontrib>Sobrado, Jesús M</creatorcontrib><creatorcontrib>Martín-Gago, José A</creatorcontrib><creatorcontrib>Cuerva, Juan M</creatorcontrib><creatorcontrib>Maçôas, Ermelinda</creatorcontrib><creatorcontrib>Campaña, Araceli G</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Chemical science (Cambridge)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cruz, Carlos M</au><au>Márquez, Irene R</au><au>Mariz, Inês F. A</au><au>Blanco, Victor</au><au>Sánchez-Sánchez, Carlos</au><au>Sobrado, Jesús M</au><au>Martín-Gago, José A</au><au>Cuerva, Juan M</au><au>Maçôas, Ermelinda</au><au>Campaña, Araceli G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enantiopure distorted ribbon-shaped nanographene combining two-photon absorption-based upconversion and circularly polarized luminescence</atitle><jtitle>Chemical science (Cambridge)</jtitle><addtitle>Chem Sci</addtitle><date>2018</date><risdate>2018</risdate><volume>9</volume><issue>16</issue><spage>3917</spage><epage>3924</epage><pages>3917-3924</pages><issn>2041-6520</issn><eissn>2041-6539</eissn><abstract>Herein we describe a distorted ribbon-shaped nanographene exhibiting unprecedented combination of optical properties in graphene-related materials, namely upconversion based on two-photon absorption (TPA-UC) together with circularly polarized luminescence (CPL). The compound is a graphene molecule of
ca.
2 nm length and 1 nm width with edge defects that promote the distortion of the otherwise planar lattice. The edge defects are an aromatic saddle-shaped ketone unit and a [5]carbohelicene moiety. This system is shown to combine two-photon absorption and circularly polarized luminescence and a remarkably long emission lifetime of 21.5 ns. The [5]helicene is responsible for the chiroptical activity while the push-pull geometry and the extended network of sp
2
carbons are factors favoring the nonlinear absorption. Electronic structure theoretical calculations support the interpretation of the results.
Including defects in a ribbon-shaped nanographene leads to a new combination of optical properties: TPA-based upconversion and CPL.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>29780523</pmid><doi>10.1039/c8sc00427g</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-8506-7025</orcidid><orcidid>https://orcid.org/0000-0001-9907-8040</orcidid><orcidid>https://orcid.org/0000-0003-2663-491X</orcidid><orcidid>https://orcid.org/0000-0001-5483-5642</orcidid><orcidid>https://orcid.org/0000-0001-6896-9617</orcidid><orcidid>https://orcid.org/0000-0002-0676-5210</orcidid><orcidid>https://orcid.org/0000-0002-6809-079X</orcidid><orcidid>https://orcid.org/0000-0001-8644-3766</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; PubMed Central Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Chemistry Circular polarization Defects Distortion Electronic structure Graphene Luminescence Optical properties Photon absorption Upconversion |
| title | Enantiopure distorted ribbon-shaped nanographene combining two-photon absorption-based upconversion and circularly polarized luminescence |
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