• Title/Summary/Keyword: Kim Sang-Ik

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Study on the electrical characteristics of organic light emitting devices using new hole transport materials

  • Lee, Jae-Goo;Lee, Min-Woo;Cho, Young-Jun;Kim, Sung-Min;Kim, Bong-Ok;Kwak, Mi-Young;Lim, Hyo-Jung;Si, Sang-Man;Sohn, Byoung-Chung;Kim, Young-Kwan
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.963-965
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    • 2003

  • We have synthesized new hole transport materials(HTMs). Then we have fabricated structures of ITO/new HTM/$Alq_{3}$/EIL/Al. New HTM based devices have higher current density and lower turn-on voltage than TPD based devices. New HTMs have higher HOMO level than TPD. The new HTM based OLEDs have shown better current injection than the TPD based OLEDs, due to the lower injection barrier between ITO surface and HTM.

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