Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces.
Identifieur interne : 001945 ( Main/Exploration ); précédent : 001944; suivant : 001946Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces.
Auteurs : RBID : pubmed:21165096Abstract
We present low-cost texturing methods to produce different surface roughnesses on glass substrates. Using sand blasting, abrasion and wet etching we achieve roughnesses of about 50 nm to 250 nm (root mean squared roughness Rq). These textured substrates are used as extraction elements for guided modes and substrate modes in organic light-emitting diodes (OLEDs). We evaporate 50 nm of the high index material Ta₂O₅ on the textured substrate, which acts as waveguide layer, and flatten it with the transparent photoresist SU-8. On top of that, we fabricate indium tin oxide (ITO)-free OLEDs, which are characterized by electroluminescence and photoluminescence measurements. The devices with rough interfaces obtain an up to 37.4% and 15.5% (at 20 mA/cm²) enhanced emission and it is shown that the enhancement is due to an increased outcoupling efficiency.
PubMed: 21165096
Links toward previous steps (curation, corpus...)
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces.</title><author><name sortKey="Riedel, Boris" uniqKey="Riedel B">Boris Riedel</name><affiliation wicri:level="3"><nlm:affiliation>Light Technology Institute, Karlsruhe Institute of Technology, Kaiserstrasse 12, D-76131 Karlsruhe, Germany. riedel@kit.edu</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Light Technology Institute, Karlsruhe Institute of Technology, Kaiserstrasse 12, D-76131 Karlsruhe</wicri:regionArea><placeName><region type="land" nuts="1">Bade-Wurtemberg</region><region type="district" nuts="2">District de Karlsruhe</region><settlement type="city">Karlsruhe</settlement></placeName></affiliation></author><author><name sortKey="Kaiser, Inga" uniqKey="Kaiser I">Inga Kaiser</name></author><author><name sortKey="Hauss, Julian" uniqKey="Hauss J">Julian Hauss</name></author><author><name sortKey="Lemmer, Uli" uniqKey="Lemmer U">Uli Lemmer</name></author><author><name sortKey="Gerken, Martina" uniqKey="Gerken M">Martina Gerken</name></author></titleStmt><publicationStmt><date when="2010">2010</date><idno type="RBID">pubmed:21165096</idno><idno type="pmid">21165096</idno><idno type="wicri:Area/Main/Corpus">001650</idno><idno type="wicri:Area/Main/Curation">001650</idno><idno type="wicri:Area/Main/Exploration">001945</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We present low-cost texturing methods to produce different surface roughnesses on glass substrates. Using sand blasting, abrasion and wet etching we achieve roughnesses of about 50 nm to 250 nm (root mean squared roughness Rq). These textured substrates are used as extraction elements for guided modes and substrate modes in organic light-emitting diodes (OLEDs). We evaporate 50 nm of the high index material Ta₂O₅ on the textured substrate, which acts as waveguide layer, and flatten it with the transparent photoresist SU-8. On top of that, we fabricate indium tin oxide (ITO)-free OLEDs, which are characterized by electroluminescence and photoluminescence measurements. The devices with rough interfaces obtain an up to 37.4% and 15.5% (at 20 mA/cm²) enhanced emission and it is shown that the enhancement is due to an increased outcoupling efficiency.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">21165096</PMID><DateCreated><Year>2010</Year><Month>12</Month><Day>17</Day></DateCreated><DateCompleted><Year>2011</Year><Month>03</Month><Day>29</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1094-4087</ISSN><JournalIssue CitedMedium="Internet"><Volume>18 Suppl 4</Volume><PubDate><Year>2010</Year><Month>Nov</Month><Day>8</Day></PubDate></JournalIssue><Title>Optics express</Title><ISOAbbreviation>Opt Express</ISOAbbreviation></Journal><ArticleTitle>Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces.</ArticleTitle><Pagination><MedlinePgn>A631-9</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1364/OE.18.00A631</ELocationID><Abstract><AbstractText>We present low-cost texturing methods to produce different surface roughnesses on glass substrates. Using sand blasting, abrasion and wet etching we achieve roughnesses of about 50 nm to 250 nm (root mean squared roughness Rq). These textured substrates are used as extraction elements for guided modes and substrate modes in organic light-emitting diodes (OLEDs). We evaporate 50 nm of the high index material Ta₂O₅ on the textured substrate, which acts as waveguide layer, and flatten it with the transparent photoresist SU-8. On top of that, we fabricate indium tin oxide (ITO)-free OLEDs, which are characterized by electroluminescence and photoluminescence measurements. The devices with rough interfaces obtain an up to 37.4% and 15.5% (at 20 mA/cm²) enhanced emission and it is shown that the enhancement is due to an increased outcoupling efficiency.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Riedel</LastName><ForeName>Boris</ForeName><Initials>B</Initials><Affiliation>Light Technology Institute, Karlsruhe Institute of Technology, Kaiserstrasse 12, D-76131 Karlsruhe, Germany. riedel@kit.edu</Affiliation></Author><Author ValidYN="Y"><LastName>Kaiser</LastName><ForeName>Inga</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Hauss</LastName><ForeName>Julian</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Lemmer</LastName><ForeName>Uli</ForeName><Initials>U</Initials></Author><Author ValidYN="Y"><LastName>Gerken</LastName><ForeName>Martina</ForeName><Initials>M</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Opt Express</MedlineTA><NlmUniqueID>101137103</NlmUniqueID><ISSNLinking>1094-4087</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>12</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>12</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>12</Month><Day>18</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">206972</ArticleId><ArticleId IdType="pubmed">21165096</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=IndiumV2/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001945 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001945 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= *** parameter Area/wikiCode missing ***
|area= IndiumV2
|flux= Main
|étape= Exploration
|type= RBID
|clé= pubmed:21165096
|texte= Improving the outcoupling efficiency of indium-tin-oxide-free organic light-emitting diodes via rough internal interfaces.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:21165096" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a IndiumV2
| This area was generated with Dilib version V0.5.76. |  |