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LL7.04 - ITO Free TiO/Au Grid - PEDOT: PSS Hybrid Electrode for Organic Solar Cells 
April 23, 2014   11:00am - 11:15am

According to resistivity and transmittance conductive oxides (TCO) are widely used in thin film optoelectronic devices. Indium-tin oxide (ITO) is the most important single layer transparent conductor. But there are technical and economic limitations for a large scale manufacturing of flexible devices. Recently, Metal-conjugated polymer hybrid structure has been actively researched to replace of ITO because the hybrid structure can produce transparent, low resistance. In this study, We fabricated a hybrid electrode by developing Au grid and tosylate doped poly(3,4-ethylenedioxythiophene: p-toluene sulfonate) (PEDOT:PTS) connection path with optimized Au grid aperture ratio. Au grid-PEDOT:PTS was deposited on the TiO which remarkably increased the transmittance. Organic solar cells fabricated on the TiO/Au grid-PEDOT:PTS hybrid electrode showed a power conversion efficiency of 3.88%, comparable to that of ITO-based organic solar cell (3.91%). The TiO/Au grid-PEDOT:PTS hybrid electrode shown to be promising replacement of ITO for use in low-cost and flexible optoelectronic devices.

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Keynote Address
Panel Discussion - Different Approaches to Commercializing Materials Research
Business Challenges to Starting a Materials-Based Company
Fred Kavli Distinguished Lectureship in Nanoscience
Application of In-situ X-ray Absorption, Emission and Powder Diffraction Studies in Nanomaterials Research - From the Design of an In-situ Experiment to Data Analysis