Title :
Versatile Multilayer Transparent Electrodes for ITO-Free and Flexible Organic Solar Cells
Author :
Han, Seungchan ; Lim, Sooyeon ; Kim, Hoyeon ; Cho, Hyunsu ; Yoo, Seunghyup
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
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.
Keywords :
bending; buffer layers; electrodes; flexible structures; multilayers; optical materials; organic compounds; solar cells; transparency; ITO-free organic solar cells; OPV performance; bending cycles; buffer layer; dielectric-metal-dielectric structure; dynamic flexibility test; flexible organic solar cells; highly flexible organic photovoltaic cells; indium tin oxide electrodes; inner dielectric layer; optimization strategy; overall optical structure; versatile multilayer transparent electrodes; Buffer layers; Dielectrics; Electrodes; Indium tin oxide; Lead compounds; Nonhomogeneous media; Optical buffering; Photovoltaic cells; Photovoltaic systems; Solar power generation; Flexible structures; modeling; multilayered media; optical materials; photovoltaic cells;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2010.2041637
