Center for Functional Nanomaterials Seminar

"3D Electrodes and Their Applications to Solar Cells"

Presented by Jun Hyuk Moon, Sogang University, Seoul, Korea

Friday, December 2, 2011, 3:30 pm — Bldg. 735 - Conf Rm B

This talk covers the fabrication of 3D macroporous structures and their application as electrode materials for dye-sensitized solar cells. 3D ordered porous electrodes have been attractive due to the following advantages. First, ordered macropores offer flexibility in the optical design of electrodes. Second, fully connected 3D pores with extended diameters allow transport of ions and infiltration of the electrolyte solution. More importantly, the 3D electrode itself can be advantageous in applications that include polymeric electrolytes with high viscosities and relatively large solvent polymers. Third, 3D connected networks can provide an organized electron path, which may facilitate charge. Here, we investigated the formation of 3D ordered porous electrodes by 3D laser interference lithography (LIL) and/or colloidal self-assembly. We also characterized the photovoltaic performances of the resulting electrodes for use in DSSCs.

Hosted by: Chang-Yong Nam

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