Plasma Modification of Fluoropolymers for Aligning Liquid Crystals
In this paper we describe methods to control liquid crystal (LC) alignment using plasma discharge on ferroelectric fluoropolymers. Two different plasma modification techniques were investigated: corona discharge and RF plasma in Ar gas. Corona discharge is a proven technique known to reorient the di...
Gespeichert in:
| Veröffentlicht in: | Journal of display technology 2008-06, Vol.4 (2), p.160-165 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 165 |
|---|---|
| container_issue | 2 |
| container_start_page | 160 |
| container_title | Journal of display technology |
| container_volume | 4 |
| creator | Shah, H.J. Delaine, D. Fontecchio, A.K. |
| description | In this paper we describe methods to control liquid crystal (LC) alignment using plasma discharge on ferroelectric fluoropolymers. Two different plasma modification techniques were investigated: corona discharge and RF plasma in Ar gas. Corona discharge is a proven technique known to reorient the dipoles in poly (vinylidene fluoride) and its copolymers resulting in a strong remnant polarization. The polarization was patterned resulting in preferential LC alignment in selected regions. RF plasma in Ar gas defluorinates the polymer surface leading to planar alignment of positive dielectric anisotropy LCs. The defluorination of the alignment layer also causes low voltage switching of the LC. |
| doi_str_mv | 10.1109/JDT.2007.913944 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_RIE</sourceid><recordid>TN_cdi_proquest_journals_912311058</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>4457915</ieee_id><sourcerecordid>34459303</sourcerecordid><originalsourceid>FETCH-LOGICAL-c416t-857bdc1e99ec0b29c8c421798c361c28e48e0717378941371e6e964b3bd72dd23</originalsourceid><addsrcrecordid>eNqF0TFv2zAQBWChSIE6SecOWYQObRbZPB5F8sbEjZMUDtLBBboJMkUFNGTRJq3B_z50XGTIkEx3w3cPBF-WfQM2BmA0-f1rMeaMqTEBkhCfshGUpS4IOZ687FAg0L8v2WmMK8ZQSy1H2fWfro7rOn_wjWudqXfO97lv81k3-OA3vtuvbYh560N-1bmn3vVP-dxtB9fk07CPu7qL59nnNg379f88y_7ObhbTu2L-eHs_vZoXRoDcFbpUy8aAJbKGLTkZbQQHRdqgBMO1FdoyBQqVJgGowEpLUixx2SjeNBzPsp_H3E3w28HGXbV20diuq3vrh1gRQ4mSl_Sh1JpJoYQ8yB_vShQi5TFM8PJdCIxzTSRRJ_r9DV35IfTpayoCjqms8oAmR2SCjzHYttoEt67DPiVVhz6r1Gd16LM69pkuLo4Xzlr7qtP7FEGJz2ndmQ4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>912311058</pqid></control><display><type>article</type><title>Plasma Modification of Fluoropolymers for Aligning Liquid Crystals</title><source>IEEE Electronic Library (IEL)</source><creator>Shah, H.J. ; Delaine, D. ; Fontecchio, A.K.</creator><creatorcontrib>Shah, H.J. ; Delaine, D. ; Fontecchio, A.K.</creatorcontrib><description>In this paper we describe methods to control liquid crystal (LC) alignment using plasma discharge on ferroelectric fluoropolymers. Two different plasma modification techniques were investigated: corona discharge and RF plasma in Ar gas. Corona discharge is a proven technique known to reorient the dipoles in poly (vinylidene fluoride) and its copolymers resulting in a strong remnant polarization. The polarization was patterned resulting in preferential LC alignment in selected regions. RF plasma in Ar gas defluorinates the polymer surface leading to planar alignment of positive dielectric anisotropy LCs. The defluorination of the alignment layer also causes low voltage switching of the LC.</description><identifier>ISSN: 1551-319X</identifier><identifier>EISSN: 1558-9323</identifier><identifier>DOI: 10.1109/JDT.2007.913944</identifier><identifier>CODEN: IJDTAL</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Alignment ; Anisotropy ; Argon ; Corona ; Corona poling ; Coronas ; Dielectrics ; Discharge ; Ferroelectric materials ; ferroelectric polymers ; Fluoropolymers ; Liquid crystals ; optical data storage ; plasma modification ; Plasmas ; Polarization ; Polymers ; Radio frequencies ; Radio frequency ; Surface discharges</subject><ispartof>Journal of display technology, 2008-06, Vol.4 (2), p.160-165</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2008</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c416t-857bdc1e99ec0b29c8c421798c361c28e48e0717378941371e6e964b3bd72dd23</citedby><cites>FETCH-LOGICAL-c416t-857bdc1e99ec0b29c8c421798c361c28e48e0717378941371e6e964b3bd72dd23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4457915$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4457915$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Shah, H.J.</creatorcontrib><creatorcontrib>Delaine, D.</creatorcontrib><creatorcontrib>Fontecchio, A.K.</creatorcontrib><title>Plasma Modification of Fluoropolymers for Aligning Liquid Crystals</title><title>Journal of display technology</title><addtitle>JDT</addtitle><description>In this paper we describe methods to control liquid crystal (LC) alignment using plasma discharge on ferroelectric fluoropolymers. Two different plasma modification techniques were investigated: corona discharge and RF plasma in Ar gas. Corona discharge is a proven technique known to reorient the dipoles in poly (vinylidene fluoride) and its copolymers resulting in a strong remnant polarization. The polarization was patterned resulting in preferential LC alignment in selected regions. RF plasma in Ar gas defluorinates the polymer surface leading to planar alignment of positive dielectric anisotropy LCs. The defluorination of the alignment layer also causes low voltage switching of the LC.</description><subject>Alignment</subject><subject>Anisotropy</subject><subject>Argon</subject><subject>Corona</subject><subject>Corona poling</subject><subject>Coronas</subject><subject>Dielectrics</subject><subject>Discharge</subject><subject>Ferroelectric materials</subject><subject>ferroelectric polymers</subject><subject>Fluoropolymers</subject><subject>Liquid crystals</subject><subject>optical data storage</subject><subject>plasma modification</subject><subject>Plasmas</subject><subject>Polarization</subject><subject>Polymers</subject><subject>Radio frequencies</subject><subject>Radio frequency</subject><subject>Surface discharges</subject><issn>1551-319X</issn><issn>1558-9323</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0TFv2zAQBWChSIE6SecOWYQObRbZPB5F8sbEjZMUDtLBBboJMkUFNGTRJq3B_z50XGTIkEx3w3cPBF-WfQM2BmA0-f1rMeaMqTEBkhCfshGUpS4IOZ687FAg0L8v2WmMK8ZQSy1H2fWfro7rOn_wjWudqXfO97lv81k3-OA3vtuvbYh560N-1bmn3vVP-dxtB9fk07CPu7qL59nnNg379f88y_7ObhbTu2L-eHs_vZoXRoDcFbpUy8aAJbKGLTkZbQQHRdqgBMO1FdoyBQqVJgGowEpLUixx2SjeNBzPsp_H3E3w28HGXbV20diuq3vrh1gRQ4mSl_Sh1JpJoYQ8yB_vShQi5TFM8PJdCIxzTSRRJ_r9DV35IfTpayoCjqms8oAmR2SCjzHYttoEt67DPiVVhz6r1Gd16LM69pkuLo4Xzlr7qtP7FEGJz2ndmQ4</recordid><startdate>20080601</startdate><enddate>20080601</enddate><creator>Shah, H.J.</creator><creator>Delaine, D.</creator><creator>Fontecchio, A.K.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20080601</creationdate><title>Plasma Modification of Fluoropolymers for Aligning Liquid Crystals</title><author>Shah, H.J. ; Delaine, D. ; Fontecchio, A.K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-857bdc1e99ec0b29c8c421798c361c28e48e0717378941371e6e964b3bd72dd23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Alignment</topic><topic>Anisotropy</topic><topic>Argon</topic><topic>Corona</topic><topic>Corona poling</topic><topic>Coronas</topic><topic>Dielectrics</topic><topic>Discharge</topic><topic>Ferroelectric materials</topic><topic>ferroelectric polymers</topic><topic>Fluoropolymers</topic><topic>Liquid crystals</topic><topic>optical data storage</topic><topic>plasma modification</topic><topic>Plasmas</topic><topic>Polarization</topic><topic>Polymers</topic><topic>Radio frequencies</topic><topic>Radio frequency</topic><topic>Surface discharges</topic><toplevel>online_resources</toplevel><creatorcontrib>Shah, H.J.</creatorcontrib><creatorcontrib>Delaine, D.</creatorcontrib><creatorcontrib>Fontecchio, A.K.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Journal of display technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Shah, H.J.</au><au>Delaine, D.</au><au>Fontecchio, A.K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Plasma Modification of Fluoropolymers for Aligning Liquid Crystals</atitle><jtitle>Journal of display technology</jtitle><stitle>JDT</stitle><date>2008-06-01</date><risdate>2008</risdate><volume>4</volume><issue>2</issue><spage>160</spage><epage>165</epage><pages>160-165</pages><issn>1551-319X</issn><eissn>1558-9323</eissn><coden>IJDTAL</coden><abstract>In this paper we describe methods to control liquid crystal (LC) alignment using plasma discharge on ferroelectric fluoropolymers. Two different plasma modification techniques were investigated: corona discharge and RF plasma in Ar gas. Corona discharge is a proven technique known to reorient the dipoles in poly (vinylidene fluoride) and its copolymers resulting in a strong remnant polarization. The polarization was patterned resulting in preferential LC alignment in selected regions. RF plasma in Ar gas defluorinates the polymer surface leading to planar alignment of positive dielectric anisotropy LCs. The defluorination of the alignment layer also causes low voltage switching of the LC.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JDT.2007.913944</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 1551-319X |
| ispartof | Journal of display technology, 2008-06, Vol.4 (2), p.160-165 |
| issn | 1551-319X 1558-9323 |
| language | eng |
| recordid | cdi_proquest_journals_912311058 |
| source | IEEE Electronic Library (IEL) |
| subjects | Alignment Anisotropy Argon Corona Corona poling Coronas Dielectrics Discharge Ferroelectric materials ferroelectric polymers Fluoropolymers Liquid crystals optical data storage plasma modification Plasmas Polarization Polymers Radio frequencies Radio frequency Surface discharges |
| title | Plasma Modification of Fluoropolymers for Aligning Liquid Crystals |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-13T02%3A50%3A02IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_RIE&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Plasma%20Modification%20of%20Fluoropolymers%20for%20Aligning%20Liquid%20Crystals&rft.jtitle=Journal%20of%20display%20technology&rft.au=Shah,%20H.J.&rft.date=2008-06-01&rft.volume=4&rft.issue=2&rft.spage=160&rft.epage=165&rft.pages=160-165&rft.issn=1551-319X&rft.eissn=1558-9323&rft.coden=IJDTAL&rft_id=info:doi/10.1109/JDT.2007.913944&rft_dat=%3Cproquest_RIE%3E34459303%3C/proquest_RIE%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=912311058&rft_id=info:pmid/&rft_ieee_id=4457915&rfr_iscdi=true |