論文

査読有り
2008年6月

Enhancement of light extraction from organic light-emitting diodes with two-dimensional hexagonally nanoimprinted periodic structures using sequential surface relief grating

JAPANESE JOURNAL OF APPLIED PHYSICS
  • Soon Moon Jeong
  • ,
  • Fumito Araoka
  • ,
  • Yoshimi Machida
  • ,
  • Yoichi Takanishi
  • ,
  • Ken Ishikawa
  • ,
  • Hideo Takezoe
  • ,
  • Suzushi Nishimura
  • ,
  • Goro Suzaki

47
6
開始ページ
4566
終了ページ
4571
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1143/JJAP.47.4566
出版者・発行元
JAPAN SOCIETY APPLIED PHYSICS

Electric characteristics of organic light-emitting diodes (OLEDs) with two-dimensional hexagonally nanoirnprinted periodic structures were investigated, and enhanced light extraction from this device was confirmed. A master mold was fabricated from an azobenzene polymer thin film patterned by sequential surface relief grating formation into a three-directional structure. The device shows a higher current density and a higher current efficiency, although leakage current is also higher than that of a device without periodic structures. These results are caused by the extraction of diffracted light from waveguided and substrate-guided light even when incident light has larger angles than the critical angle for total reflection.

リンク情報
DOI
https://doi.org/10.1143/JJAP.47.4566
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000257260600038&DestApp=WOS_CPL
ID情報
  • DOI : 10.1143/JJAP.47.4566
  • ISSN : 0021-4922
  • Web of Science ID : WOS:000257260600038

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