| 초록 |
We demonstrated copper phthalocyanine (CuPc) FETs on the rubbed and stretched plastic substrates. CuPc have been focused on good candidates as organic semiconductor materials due to the thermal stability, non-toxcity, etc. To examine the effect of surface ordering of substrates on the orientation of CuPc molecules, the several plastic substrates, such as Polyethersulfone (PES), Polyethylene terephthalate (PET) and polycarbonate (PC) were treated via rubbing and hot stretching process, and then the CuPc was deposited on the treated substrates, subsequently. CuPc crystallites successfully aligned after rubbing and stretching, respectively. Alignment of CuPc crystallites was characterized by absorption anisotropy from polarized UV absorption spectroscopy and also could be confirmed by atomic force microscopy. As the CuPc crystallites was well aligned along the direction from source to drain electrode, it could be confirmed to obtain the better electric performance of CuPc FETs. |
