Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes

We present structural studies of Langmuir (L) and Langmuir−Blodgett (LB) films of new amphiphilic hexa-peri-hexabenzocoronene (HBC) discotics, carrying five branched alkyl side chains and one polar group. The polar group is either a carboxylic acid moiety or an electron acceptor moiety (anthraquinon...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Langmuir 2004-05, Vol.20 (10), p.4139-4146
Hauptverfasser: Laursen, Bo W, Nørgaard, Kasper, Reitzel, Niels, Simonsen, Jens B, Nielsen, Christian B, Als-Nielsen, Jens, Bjørnholm, Thomas, Sølling, Theis I, Nielsen, Martin M, Bunk, Oliver, Kjaer, Kristian, Tchebotareva, Natalia, Watson, Mark D, Müllen, Klaus, Piris, Jorge
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 4146
container_issue 10
container_start_page 4139
container_title Langmuir
container_volume 20
creator Laursen, Bo W
Nørgaard, Kasper
Reitzel, Niels
Simonsen, Jens B
Nielsen, Christian B
Als-Nielsen, Jens
Bjørnholm, Thomas
Sølling, Theis I
Nielsen, Martin M
Bunk, Oliver
Kjaer, Kristian
Tchebotareva, Natalia
Watson, Mark D
Müllen, Klaus
Piris, Jorge
description We present structural studies of Langmuir (L) and Langmuir−Blodgett (LB) films of new amphiphilic hexa-peri-hexabenzocoronene (HBC) discotics, carrying five branched alkyl side chains and one polar group. The polar group is either a carboxylic acid moiety or an electron acceptor moiety (anthraquinone). Grazing-incidence X-ray diffraction (GIXD) and X-ray reflectivity, both utilizing synchrotron radiation, show that these amphiphilic HBCs form well-defined Langmuir monolayers at the air−water interface, with a π-stacked columnar structure where the HBC cores are rotated around the surface normal and tilted relative to the water surface. The intercolumnar distance is 20 Å. The HBCs are confined to a layer lying on top of the layer of polar groups that are in contact with the water subphase. Efficient transfer of the monolayer of the anthraquinone-substituted HBC derivative to hydrophobic quartz substrates by vertical dipping gave well-defined multilayer Y-type LB films. Polarized optical spectroscopy, GIXD, and X-ray reflectivity measurements show that the LB films consist of at least two phases. Heating the films results in an irreversible rearrangement to a single macroscopically aligned phase of hexagonally packed columns oriented along the dipping direction with disk planes perpendicular to the columnar axes and stacked in a cofacial manner. This phase transition is analogous to the reversible transition observed in the bulk material.
doi_str_mv 10.1021/la049944i
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_67300307</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>67300307</sourcerecordid><originalsourceid>FETCH-LOGICAL-a349t-c3b42823d7b26d9429b65ad41bd91be1c9505af618950b9f145ee5e69444c6103</originalsourceid><addsrcrecordid>eNptkMFO3DAQhq2qqCy0B14A5dJKHAJ2YifxcYHubtEiKkGr3izbmSyGxA52IgFPwJlH5Enq1a7opZIlW5rP_8x8CB0QfExwRk5aiSnnlJoPaEJYhlNWZeVHNMElzdOSFvku2gvhDmPMc8o_oV3CeMEpriaovZTau6Bdb3Qybc3KdmCHxDXJ3Mv-Fiwk14PU9yFRT8lS2lU3Gv_28nraunoFw5CcQ--CGYyz60_Trr818bQxbQGPUoF9dtp5Z2NS-Ix2GtkG-LK999Gv2febs0W6vJr_OJsuUxnHG1KdK5pVWV6XKitqTjOuCiZrSlTNiQKiOcNMNgWp4kPxhlAGwCBuRKkuCM730bdNbu_dwwhhEJ0JGtpWWnBjEEWZY5zjMoJHG3DtIHhoRO9NJ_2TIFis1Yp3tZE93IaOqoP6H7l1GYF0A5gwwON7Xfr7dcOSiZuf12JWzf6w38WFOI_81w0vdRB3bvQ2OvlP479SFZEa</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>67300307</pqid></control><display><type>article</type><title>Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes</title><source>American Chemical Society Journals</source><creator>Laursen, Bo W ; Nørgaard, Kasper ; Reitzel, Niels ; Simonsen, Jens B ; Nielsen, Christian B ; Als-Nielsen, Jens ; Bjørnholm, Thomas ; Sølling, Theis I ; Nielsen, Martin M ; Bunk, Oliver ; Kjaer, Kristian ; Tchebotareva, Natalia ; Watson, Mark D ; Müllen, Klaus ; Piris, Jorge</creator><creatorcontrib>Laursen, Bo W ; Nørgaard, Kasper ; Reitzel, Niels ; Simonsen, Jens B ; Nielsen, Christian B ; Als-Nielsen, Jens ; Bjørnholm, Thomas ; Sølling, Theis I ; Nielsen, Martin M ; Bunk, Oliver ; Kjaer, Kristian ; Tchebotareva, Natalia ; Watson, Mark D ; Müllen, Klaus ; Piris, Jorge</creatorcontrib><description>We present structural studies of Langmuir (L) and Langmuir−Blodgett (LB) films of new amphiphilic hexa-peri-hexabenzocoronene (HBC) discotics, carrying five branched alkyl side chains and one polar group. The polar group is either a carboxylic acid moiety or an electron acceptor moiety (anthraquinone). Grazing-incidence X-ray diffraction (GIXD) and X-ray reflectivity, both utilizing synchrotron radiation, show that these amphiphilic HBCs form well-defined Langmuir monolayers at the air−water interface, with a π-stacked columnar structure where the HBC cores are rotated around the surface normal and tilted relative to the water surface. The intercolumnar distance is 20 Å. The HBCs are confined to a layer lying on top of the layer of polar groups that are in contact with the water subphase. Efficient transfer of the monolayer of the anthraquinone-substituted HBC derivative to hydrophobic quartz substrates by vertical dipping gave well-defined multilayer Y-type LB films. Polarized optical spectroscopy, GIXD, and X-ray reflectivity measurements show that the LB films consist of at least two phases. Heating the films results in an irreversible rearrangement to a single macroscopically aligned phase of hexagonally packed columns oriented along the dipping direction with disk planes perpendicular to the columnar axes and stacked in a cofacial manner. This phase transition is analogous to the reversible transition observed in the bulk material.</description><identifier>ISSN: 0743-7463</identifier><identifier>EISSN: 1520-5827</identifier><identifier>DOI: 10.1021/la049944i</identifier><identifier>PMID: 15969408</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>Langmuir, 2004-05, Vol.20 (10), p.4139-4146</ispartof><rights>Copyright © 2004 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a349t-c3b42823d7b26d9429b65ad41bd91be1c9505af618950b9f145ee5e69444c6103</citedby><cites>FETCH-LOGICAL-a349t-c3b42823d7b26d9429b65ad41bd91be1c9505af618950b9f145ee5e69444c6103</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/la049944i$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/la049944i$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15969408$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Laursen, Bo W</creatorcontrib><creatorcontrib>Nørgaard, Kasper</creatorcontrib><creatorcontrib>Reitzel, Niels</creatorcontrib><creatorcontrib>Simonsen, Jens B</creatorcontrib><creatorcontrib>Nielsen, Christian B</creatorcontrib><creatorcontrib>Als-Nielsen, Jens</creatorcontrib><creatorcontrib>Bjørnholm, Thomas</creatorcontrib><creatorcontrib>Sølling, Theis I</creatorcontrib><creatorcontrib>Nielsen, Martin M</creatorcontrib><creatorcontrib>Bunk, Oliver</creatorcontrib><creatorcontrib>Kjaer, Kristian</creatorcontrib><creatorcontrib>Tchebotareva, Natalia</creatorcontrib><creatorcontrib>Watson, Mark D</creatorcontrib><creatorcontrib>Müllen, Klaus</creatorcontrib><creatorcontrib>Piris, Jorge</creatorcontrib><title>Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes</title><title>Langmuir</title><addtitle>Langmuir</addtitle><description>We present structural studies of Langmuir (L) and Langmuir−Blodgett (LB) films of new amphiphilic hexa-peri-hexabenzocoronene (HBC) discotics, carrying five branched alkyl side chains and one polar group. The polar group is either a carboxylic acid moiety or an electron acceptor moiety (anthraquinone). Grazing-incidence X-ray diffraction (GIXD) and X-ray reflectivity, both utilizing synchrotron radiation, show that these amphiphilic HBCs form well-defined Langmuir monolayers at the air−water interface, with a π-stacked columnar structure where the HBC cores are rotated around the surface normal and tilted relative to the water surface. The intercolumnar distance is 20 Å. The HBCs are confined to a layer lying on top of the layer of polar groups that are in contact with the water subphase. Efficient transfer of the monolayer of the anthraquinone-substituted HBC derivative to hydrophobic quartz substrates by vertical dipping gave well-defined multilayer Y-type LB films. Polarized optical spectroscopy, GIXD, and X-ray reflectivity measurements show that the LB films consist of at least two phases. Heating the films results in an irreversible rearrangement to a single macroscopically aligned phase of hexagonally packed columns oriented along the dipping direction with disk planes perpendicular to the columnar axes and stacked in a cofacial manner. This phase transition is analogous to the reversible transition observed in the bulk material.</description><issn>0743-7463</issn><issn>1520-5827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNptkMFO3DAQhq2qqCy0B14A5dJKHAJ2YifxcYHubtEiKkGr3izbmSyGxA52IgFPwJlH5Enq1a7opZIlW5rP_8x8CB0QfExwRk5aiSnnlJoPaEJYhlNWZeVHNMElzdOSFvku2gvhDmPMc8o_oV3CeMEpriaovZTau6Bdb3Qybc3KdmCHxDXJ3Mv-Fiwk14PU9yFRT8lS2lU3Gv_28nraunoFw5CcQ--CGYyz60_Trr818bQxbQGPUoF9dtp5Z2NS-Ix2GtkG-LK999Gv2febs0W6vJr_OJsuUxnHG1KdK5pVWV6XKitqTjOuCiZrSlTNiQKiOcNMNgWp4kPxhlAGwCBuRKkuCM730bdNbu_dwwhhEJ0JGtpWWnBjEEWZY5zjMoJHG3DtIHhoRO9NJ_2TIFis1Yp3tZE93IaOqoP6H7l1GYF0A5gwwON7Xfr7dcOSiZuf12JWzf6w38WFOI_81w0vdRB3bvQ2OvlP479SFZEa</recordid><startdate>20040511</startdate><enddate>20040511</enddate><creator>Laursen, Bo W</creator><creator>Nørgaard, Kasper</creator><creator>Reitzel, Niels</creator><creator>Simonsen, Jens B</creator><creator>Nielsen, Christian B</creator><creator>Als-Nielsen, Jens</creator><creator>Bjørnholm, Thomas</creator><creator>Sølling, Theis I</creator><creator>Nielsen, Martin M</creator><creator>Bunk, Oliver</creator><creator>Kjaer, Kristian</creator><creator>Tchebotareva, Natalia</creator><creator>Watson, Mark D</creator><creator>Müllen, Klaus</creator><creator>Piris, Jorge</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20040511</creationdate><title>Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes</title><author>Laursen, Bo W ; Nørgaard, Kasper ; Reitzel, Niels ; Simonsen, Jens B ; Nielsen, Christian B ; Als-Nielsen, Jens ; Bjørnholm, Thomas ; Sølling, Theis I ; Nielsen, Martin M ; Bunk, Oliver ; Kjaer, Kristian ; Tchebotareva, Natalia ; Watson, Mark D ; Müllen, Klaus ; Piris, Jorge</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a349t-c3b42823d7b26d9429b65ad41bd91be1c9505af618950b9f145ee5e69444c6103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Laursen, Bo W</creatorcontrib><creatorcontrib>Nørgaard, Kasper</creatorcontrib><creatorcontrib>Reitzel, Niels</creatorcontrib><creatorcontrib>Simonsen, Jens B</creatorcontrib><creatorcontrib>Nielsen, Christian B</creatorcontrib><creatorcontrib>Als-Nielsen, Jens</creatorcontrib><creatorcontrib>Bjørnholm, Thomas</creatorcontrib><creatorcontrib>Sølling, Theis I</creatorcontrib><creatorcontrib>Nielsen, Martin M</creatorcontrib><creatorcontrib>Bunk, Oliver</creatorcontrib><creatorcontrib>Kjaer, Kristian</creatorcontrib><creatorcontrib>Tchebotareva, Natalia</creatorcontrib><creatorcontrib>Watson, Mark D</creatorcontrib><creatorcontrib>Müllen, Klaus</creatorcontrib><creatorcontrib>Piris, Jorge</creatorcontrib><collection>Istex</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Laursen, Bo W</au><au>Nørgaard, Kasper</au><au>Reitzel, Niels</au><au>Simonsen, Jens B</au><au>Nielsen, Christian B</au><au>Als-Nielsen, Jens</au><au>Bjørnholm, Thomas</au><au>Sølling, Theis I</au><au>Nielsen, Martin M</au><au>Bunk, Oliver</au><au>Kjaer, Kristian</au><au>Tchebotareva, Natalia</au><au>Watson, Mark D</au><au>Müllen, Klaus</au><au>Piris, Jorge</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2004-05-11</date><risdate>2004</risdate><volume>20</volume><issue>10</issue><spage>4139</spage><epage>4146</epage><pages>4139-4146</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><abstract>We present structural studies of Langmuir (L) and Langmuir−Blodgett (LB) films of new amphiphilic hexa-peri-hexabenzocoronene (HBC) discotics, carrying five branched alkyl side chains and one polar group. The polar group is either a carboxylic acid moiety or an electron acceptor moiety (anthraquinone). Grazing-incidence X-ray diffraction (GIXD) and X-ray reflectivity, both utilizing synchrotron radiation, show that these amphiphilic HBCs form well-defined Langmuir monolayers at the air−water interface, with a π-stacked columnar structure where the HBC cores are rotated around the surface normal and tilted relative to the water surface. The intercolumnar distance is 20 Å. The HBCs are confined to a layer lying on top of the layer of polar groups that are in contact with the water subphase. Efficient transfer of the monolayer of the anthraquinone-substituted HBC derivative to hydrophobic quartz substrates by vertical dipping gave well-defined multilayer Y-type LB films. Polarized optical spectroscopy, GIXD, and X-ray reflectivity measurements show that the LB films consist of at least two phases. Heating the films results in an irreversible rearrangement to a single macroscopically aligned phase of hexagonally packed columns oriented along the dipping direction with disk planes perpendicular to the columnar axes and stacked in a cofacial manner. This phase transition is analogous to the reversible transition observed in the bulk material.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>15969408</pmid><doi>10.1021/la049944i</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0743-7463
ispartof Langmuir, 2004-05, Vol.20 (10), p.4139-4146
issn 0743-7463
1520-5827
language eng
recordid cdi_proquest_miscellaneous_67300307
source American Chemical Society Journals
title Macroscopic Alignment of Graphene Stacks by Langmuir−Blodgett Deposition of Amphiphilic Hexabenzocoronenes
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T19%3A56%3A09IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Macroscopic%20Alignment%20of%20Graphene%20Stacks%20by%20Langmuir%E2%88%92Blodgett%20Deposition%20of%20Amphiphilic%20Hexabenzocoronenes&rft.jtitle=Langmuir&rft.au=Laursen,%20Bo%20W&rft.date=2004-05-11&rft.volume=20&rft.issue=10&rft.spage=4139&rft.epage=4146&rft.pages=4139-4146&rft.issn=0743-7463&rft.eissn=1520-5827&rft_id=info:doi/10.1021/la049944i&rft_dat=%3Cproquest_cross%3E67300307%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=67300307&rft_id=info:pmid/15969408&rfr_iscdi=true