| 초록 |
Doctor blade technique is very attractive method for large-area and low-cost organic electronics. In this paper we fabricated organic solar cells (OSCs) and organic light emitting diodes (OLEDs) with active area of 14.5 mm2 by doctor blade printing and spin coating. Poly[3-hexylthiophene]/[6,6]-phenyl C61 butyric acid methyl ester (P3HT/PCBM) composites for OSCs and poly(2-methoxy,5-(2’-ethyl-hexoxy)-1,4-phenylene-vinylene) (MEH-PPV) for OLEDs were used as active layer in each device. The V-I characteristics, electroluminescent spectra, absorption spectra and atomic force microscope (AFM) were used for studying the characteristics of those devices. The printed and spin coated devices showed different morphology and optimized condition. However, the performances of those devices were comparable to each other. These results demonstrated that high performance organic electronics with larger area can be made by doctor blade technique. |
