Contact printing of the emitting layer for high performance multilayered phosphorescent organic light-emitting diodes

Tae Hyun Park, Young Wook Park, Jin Hwan Choi, Hyun Ju Choi, Jin Wook Jeong, Eun Ho Song, Kyung Cheol Choi, Byeong Kwon Ju

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Efficient multilayered organic light-emitting diodes (OLEDs) were fabricated using contact printing. In order to overcome the mixing problem occurring between the organic layers during the solution processes, contact printing was utilized on a small molecule layer. Since this contact printing allows multilayer stacking without the damage caused by organic solvents, high-performance OLEDs could be fabricated with solution-based small molecules employing a low cost process. In this study, the performance of the multilayered OLEDs manufactured by the contact printing process is significantly enhanced than that found in spin-coated devices.

    Original languageEnglish
    Pages (from-to)1063-1067
    Number of pages5
    JournalOrganic Electronics
    Volume12
    Issue number6
    DOIs
    Publication statusPublished - 2011 Jun

    Bibliographical note

    Funding Information:
    This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) ( CAFDC-20100009869 ), World Class University ( WCU, R32-2008-000-10082-0 ) Project of the MEST (KOSEF), and the IT R&D Program of MKE/KEIT (No. 2009-F-016-01 , Development of Eco-Emotional OLED Flat-Panel Lighting). We thank the staff of KBSI for technical assistance. T.H. Park was financially supported by Hi Seoul Science (Humanities) Fellowship funded by Seoul Scholarship Foundation.

    Keywords

    • Contact printing
    • Multilayer
    • Organic light-emitting diodes
    • Small molecule
    • Solution process

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • General Chemistry
    • Biomaterials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Materials Chemistry

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