Fabrication and characterization of photo cathode materials for transparent organic light-emitting diodes

Hui Lin, Junsheng Yu, Nana Wang, Chunhua Huang, Yadong Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this work structural composition and fabrication process of cathode for transparent OLED were investigated. Using a LiF/Al/Ag/Alq3 semitransparent cathode and a Mg:Ag/ITO cathode, green fluorescent transparent organic light-emitting devices (TOLEDs) were fabricated. ITO was evaporated as a cathode onto a thin Mg:Ag layer by DC magnetron sputtering method with the assistance of tiny H2O vapor during deposition process. The fabrication of LiF/Al/Ag/Alq3 electrode was processed without breaking the vacuum. At a bias of 15 V, the luminance of the TOLED with Mg:Ag/ITO and LiF/Al/Ag/Alq3 cathode were 3016 and 4535 cd/m 2, respectively. The results indicate that LiF/Al/Ag/Alq3 electrode can be used as an effective and stable cathode in TOLEDs.

Original languageEnglish
Title of host publication5th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationOptoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
DOIs
StatePublished - 2010
Externally publishedYes
Event5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology - Dalian, China
Duration: 26 Apr 201029 Apr 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7658
ISSN (Print)0277-786X

Conference

Conference5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
Country/TerritoryChina
CityDalian
Period26/04/1029/04/10

Keywords

  • Magnetron sputtering
  • Photo cathode
  • Transparent organic light emitting diodes

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