ZHANG Chunlin, ZHANG Yong, LI Haixia, WANG Fangcong, ZHANG Guobing, CHEN Da, JIA Xiaoyun, LIU Su. Enhancing the Performance of the Organic Light-emitting Device (OLED) by Thermal Treatment[J]. Chinese Journal of Electronics, 2011, 20(1): 55-57.
Citation: ZHANG Chunlin, ZHANG Yong, LI Haixia, WANG Fangcong, ZHANG Guobing, CHEN Da, JIA Xiaoyun, LIU Su. Enhancing the Performance of the Organic Light-emitting Device (OLED) by Thermal Treatment[J]. Chinese Journal of Electronics, 2011, 20(1): 55-57.

Enhancing the Performance of the Organic Light-emitting Device (OLED) by Thermal Treatment

  • Received Date: 2010-01-01
  • Rev Recd Date: 2010-07-01
  • Publish Date: 2011-01-05
  • A comparative study on the annealing of the ITO substrates and the organic layers were conducted on Organic light-emitting device (OLED). We fabricated four devices with the structure of Al/Alq3/TPD: PVK/NiO/ITO/Glass, and investigated the effect of heat on device performance by selectively annealing. When the TPD: PVK layers were annealed at 90?C with 30 min annealing time and the ITO substrates were annealed at 300?C with a constant annealing time (100 min). We find the OLED shows obvious performance improvement in brightness and current efficiency, which is attributable to the fact that annealing reduces defects and improves the interface structures of the organics and the organic/ITO interfaces. On the other hand, an appropriate annealing would slow the transportation of the hole, thus finally leads to more balanced electron and hole.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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