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Versatile Multilayer Transparent Electrodes for ITO-Free and Flexible Organic Solar Cells

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5 Author(s)
Seungchan Han ; Department of Electrical Engineering , Korea Advanced Institute of Science and Technology, Daejeon, Korea ; Sooyeon Lim ; Hoyeon Kim ; Hyunsu Cho
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Multilayer transparent electrodes based on a dielectric-metal-dielectric structure are explored as an effective alternative to indium tin oxide (ITO) electrodes that can lead to ITO-free or highly flexible organic photovoltaic (OPV) cells with a performance comparable to conventional cells. The role of each layer in multilayer electrodes is discussed with an emphasis on the potential role of inner dielectric layer as a buffer layer, and the optimization strategy considering the overall optical structure is provided. Experimental results showing the OPV performance under dynamic flexibility test are also provided as a function of the number of bending cycles.

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IEEE Journal of Selected Topics in Quantum Electronics  (Volume:16 ,  Issue: 6 )