| 초록 |
In this study, we report on a very simple, low-cost, scalable and single-step method to directly fabricate ordered controllable honeycomb concave patterns on polymeric substrates including the commercial Petri dish. The method based on the concept of the methanol accumulation-induced phase separation and the dip-coating technique in which a mixture of chloroform and methanol is exploited not only to induce a ternary solution but also to guarantee the formation of honeycomb structure on the substrate. The surface topology of 3D honeycomb substrate is effectively controlled by varying experimental conditions. Because the obtained honeycomb structure is indeed a part of the substrate, it reveals an increase in the structure’s stability for further applications. The 3D culture dishes demonstrates good cell adhesion and excellent cell proliferation as an evidence for use in biomedical technology. In addition, the Pt-deposited on honeycomb substrate used as the FTO free counter electrode (CE) of dye-sensitized solar cells (DSCs) demonstrates an enhancement of efficiency by 14.5% compared to device using Pt/plat substrate. |
