title: Precise Morphology Control and Continuous Fabrication of Perovskite Solar Cells Using Droplet-Controllable Electrospray Coating System.
abstract: Herein, we developed a novel electrospray coating system for continuous fabrication of perovskite solar cells with high performance. Our system can systemically control the size of CH3NH3PbI3precursor droplets by modulating the applied electrical potential, shown to be a crucial factor for the formation of perovskite films. As a result, we have obtained pinhole-free and large grain-sized perovskite solar cells, yielding the best PCE of 13.27% with little photocurrent hysteresis. Furthermore, the average PCE through the continuous coating process was 11.56 ± 0.52%. Our system demonstrates not only the high reproducibility but also a new way to commercialize high-quality perovskite solar cells.
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Seung Chan
authors.initials: SC
authors.lastname: Hong
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Gunhee
authors.initials: G
authors.lastname: Lee
authors.affiliation: Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Kyungyeon
authors.initials: K
authors.lastname: Ha
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Jungjin
authors.initials: J
authors.lastname: Yoon
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Namyoung
authors.initials: N
authors.lastname: Ahn
authors.affiliation: Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Woohyung
authors.initials: W
authors.lastname: Cho
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Mincheol
authors.initials: M
authors.lastname: Park
authors.affiliation: Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea.|Global Frontier Center for Multiscale Energy Systems, Seoul National University , Seoul 151-744, Republic of Korea.
authors.forename: Mansoo
authors.identifier: http://orcid.org/0000-0002-3009-375X
authors.initials: M
authors.lastname: Choi
keywords: continuous; controllable; droplet size; electrospray; perovskite solar cell