title: Large Grain-Based Hole-Blocking Layer-Free Planar-Type Perovskite Solar Cell with Best Efficiency of 18.20.
abstract: There remains tremendous interest in perovskite solar cells (PSCs) in the solar energy field; the certified power conversion efficiency (PCE) now exceeds 20%. Along with research focused on enhancing PCE, studies are also underway concerning PSC commercialization. It is crucial to simplify the fabrication process and reduce the production cost to facilitate commercialization. Herein, we successfully fabricated highly efficient hole-blocking layer (HBL)-free PSCs through vigorously interrupting penetration of hole-transport material (HTM) into fluorine-doped tin oxide by a large grain based-CH3NH3PbI3(MAPbI3) film, thereby obtaining a PCE of 18.20%. Our results advance the commercialization of PSCs via a simple fabrication system and a low-cost approach in respect of mass production and recyclability.
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Haejun
authors.initials: H
authors.lastname: Yu
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Jaehoon
authors.initials: J
authors.lastname: Ryu
authors.affiliation: Department of Biophysics and Chemical Biology and Department of Chemistry, Seoul National University , Seoul 151-742, Korea.
authors.forename: Jong Woo
authors.initials: JW
authors.lastname: Lee
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Jongmin
authors.initials: J
authors.lastname: Roh
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Kisu
authors.initials: K
authors.lastname: Lee
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Juyoung
authors.initials: J
authors.lastname: Yun
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Jungsup
authors.initials: J
authors.lastname: Lee
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Yun Ki
authors.initials: YK
authors.lastname: Kim
authors.affiliation: Department of Biophysics and Chemical Biology and Department of Chemistry, Seoul National University , Seoul 151-742, Korea.
authors.forename: Doyk
authors.initials: D
authors.lastname: Hwang
authors.affiliation: Department of Biophysics and Chemical Biology and Department of Chemistry, Seoul National University , Seoul 151-742, Korea.
authors.forename: Jooyoun
authors.initials: J
authors.lastname: Kang
authors.affiliation: Department of Biophysics and Chemical Biology and Department of Chemistry, Seoul National University , Seoul 151-742, Korea.
authors.forename: Seong Keun
authors.identifier: http://orcid.org/0000-0002-3527-6141
authors.initials: SK
authors.lastname: Kim
authors.affiliation: World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Jyongsik
authors.identifier: http://orcid.org/0000-0002-0415-802X
authors.initials: J
authors.lastname: Jang
keywords: HTM infiltration; blockage effect; grain size; hole-blocking layer-free; perovskite solar cell; recyclability