| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 | 29권 1호, p.348 |
| 발표분야 | 분자전자 부문위원회 |
| 제목 | Patterning polymer light-emitting diodes by micromolding in capillary |
| 초록 | In polymer light-emitting diodes (PLEDs), the polymer emitting layers need to be patterned using methods suitable for polymers and which do not add great cost to device fabrication. The difficulties in classical photolithography for patterning active polymers include degradation of the polymers due to solvents and patterning processes. Here we describe a method of patterning EL polymeric materials using micromolding in capillaries (MIMIC). MIMC utilizes a pre-patterned elastomer, usually polydimethylsiloxane (PDMS), as the mold. The mold is placed on the desired substrate, and the relief structure in the mold forms a network of empty channels. When a drop of the polymer solution placed at the open ends of the network of channels, the patterned polymer structures is fabricated by capillary action. The patterned microstructures of polydioctylfluorene (PDOF), poly(p-phenylenevinylene) (PPV), and poly(2-methoxy-5-2¢-ethylhexyloxy)-p-phenylenevinylene) (MEH-PPV) were fabricated by MIMIC for PLEDs. In order to investigate how the viscosity of polymer solution affects, the patterning process was several times performed, varying the solution concentration. Finally, in order to verify the pattern fabrication of the polymer emitting layers, a PLED device was fabricated and a patterned emission image was obtained. |
| 저자 | 박민주, 최원묵, 박오옥 |
| 소속 | 한국과학기술원 |
| 키워드 | Polymer light-emitting diodes; Micromolding in capillary |
