Journal article Open Access

Effect of matrix anisotropy on theapparent emitter orientation inOrganic LED

Norbert Danz; Nils Haase; Antonia Morherr; ChristofPflumm; Birk Fritsch


Dublin Core Export

<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Norbert  Danz</dc:creator>
  <dc:creator>Nils  Haase</dc:creator>
  <dc:creator>Antonia  Morherr</dc:creator>
  <dc:creator>ChristofPflumm</dc:creator>
  <dc:creator>Birk  Fritsch</dc:creator>
  <dc:date>2018-05-22</dc:date>
  <dc:description>Spontaneously aligning emitter molecules can improve the external efficiency of OLED devices and have beenreportedfor different types of emittersdoped into suitable hosts. Similar to the morphological alignment of the active molecules, a birefringence of the host affects the apparent emitter orientation. In order to investigate this effect experimentally, Ir(ppy)3is co-evaporated into the emitting layer of OLED using hosts with different birefringence properties. Analyzing the electroluminescence emission patterns quantitatively reveals the apparent orientation distribution of the emitters. The results emphasize that host birefringence can be used to suppress perpendicular emitter contributions while amplifying the impact of the horizontal dipoles, thus leading to an enhanced forward emission.</dc:description>
  <dc:identifier>https://zenodo.org/record/3675275</dc:identifier>
  <dc:identifier>10.1117/12.2306408</dc:identifier>
  <dc:identifier>oai:zenodo.org:3675275</dc:identifier>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/732013/</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
  <dc:subject>organic light-emitting diode, electroluminescence, birefringence, emitter orientation, optical simulation</dc:subject>
  <dc:title>Effect of matrix anisotropy on theapparent emitter orientation inOrganic LED</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>
12
19
views
downloads
Views 12
Downloads 19
Data volume 11.6 MB
Unique views 9
Unique downloads 17

Share

Cite as