title: Continuous 1D-Metallic Microfibers Web for Flexible Organic Solar Cells.
abstract: We report the use of a continuous 1D-metallic microfibers web (MFW) as transparent electrode for organic solar cells (OSCs). The MFW electrode can be produced with a process that involves simple electrospinning and wet etching of metal thin film. Au MFW exhibits a maximum optical transmittance of 90.8% (at 15 Ω/sq of the sheet resistance) and excellent mechanical flexibility. The MFW structure has an average width in the range from 4 to 6 μm and a junction-free structure, resulting in very smooth surface roughness. The OSCs with Au MFW electrode exhibited a higher power conversion efficiency (PCE) of 3.50% than the device with an indium tin oxide electrode (PCE = 3.20%). The optical modeling calculation showed that the Au MFW electrode induced light scattering and improved the light absorption in the active layer, resulting in an improved PCE in the OSCs.
authors.affiliation: Surface Technology Division, Korea Institute of Materials Science (KIMS) , Changwon, Gyeongsangnam-do 641-831, Republic of Korea.
authors.forename: Kihyon
authors.initials: K
authors.lastname: Hong
authors.affiliation: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, North Gyeongsang 790-784, Republic of Korea.
authors.forename: Juyoung
authors.initials: J
authors.lastname: Ham
authors.affiliation: Surface Technology Division, Korea Institute of Materials Science (KIMS) , Changwon, Gyeongsangnam-do 641-831, Republic of Korea.
authors.forename: Byoung-Joon
authors.initials: BJ
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, North Gyeongsang 790-784, Republic of Korea.
authors.forename: Jae Yong
authors.initials: JY
authors.lastname: Park
authors.affiliation: Surface Technology Division, Korea Institute of Materials Science (KIMS) , Changwon, Gyeongsangnam-do 641-831, Republic of Korea.
authors.forename: Dong Chan
authors.initials: DC
authors.lastname: Lim
authors.affiliation: Surface Technology Division, Korea Institute of Materials Science (KIMS) , Changwon, Gyeongsangnam-do 641-831, Republic of Korea.
authors.forename: Joo Yul
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, North Gyeongsang 790-784, Republic of Korea.
authors.forename: Jong-Lam
authors.initials: JL
authors.lastname: Lee
keywords: electrospinning; junction-free structure; metallic microfibers web; organic solar cell; transparent electrode