Micro-pixel array of organic light-emitting diodes applying imprinting technique with a polymer replica

Tae Hyun Park, Young Min Kim, Young Wook Park, Jin Hwan Choi, Jin Wook Jeong, Ki Young Dong, Kyung Cheol Choi, Byeong Kwon Ju

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Efficient micro-pixel array of small molecule organic light-emitting diodes (OLEDs) has been fabricated by an imprinting technique which uses a polymer replica. To confirm the effect of the oxygen plasma for removing the residual layer, the performance of two kinds of OLEDs with varying thicknesses of resin as the micro-pixel array, have been compared. The measured results of the OLEDs have shown comparable device performances that are significantly characterized depending on the residues on the substrate. The performance of enhanced device has achieved efficiencies of 3.6 cd/A and 1.9 lm/W at 20 mA/ cm2.

Original languageEnglish
Article number093301
JournalApplied Physics Letters
Volume95
Issue number9
DOIs
Publication statusPublished - 2009

Bibliographical note

Funding Information:
This work was supported by the ERC program of the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea Ministry of Education and Science and Technology (MEST) (Grant No. R11-2007-045-01003-0) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the MEST (Grant No.2009-0083126), and was partly supported by the IT R&D program of MKE/IITA (Grant No. 2009-F-017-01, Development of Fundamental Technologies for Flexible Combined-Function Organic Electronic Device).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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