Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2013.08a
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- Pages.142.1-142.1
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- 2013
Early Stage of Pentacene Growth on the CYTOP Doped Graphene Surface
- Yang, Mi-Hyun (Sungkyunkwan University) ;
- Lee, Kyoung-Jae (POSTECH) ;
- Kumar, Yogesh (Pohang Accelerator Laboratory) ;
- Ihm, Kyuwook (Pohang Accelerator Laboratory) ;
- Kang, Tai-Hee (Pohang Accelerator Laboratory) ;
- Ahn, Joung-Real (Sungkyunkwan University)
- Published : 2013.08.21
Abstract
The patterning and doping technique enables graphene to replace the metal electrode as a charge injection layer in the pentacene based thin film transistor. However, it is known that pentacene molecules form lying-down coordination on the graphene surface. Pentacene thin film showed that the highly occupied molecular orbital is 0.2~0.4 eV lower in the standing up coordination than in the lying down coordination. Here, we report the formation of standing-up coordination and lowered HOMO level of the pentacene layer grown on the graphene layer doped with CYTOP.