title: High Consistency Perovskite Solar Cell with a Consecutive Compact and Mesoporous TiO2Film by One-Step Spin-Coating.
abstract: Generally, in classic mesoscopic perovskite solar cells (PSCs), the compact blocking layer and mesoporous scaffold layer prepared by two steps or more will inevitably form an interface between them. It is undoubted that the interface contact is not conducive to electron transport and would increase the recombination in the device, resulting in the inferior performance of PSCs. In this work, we constructed a consecutive compact and mesoporous (CCM) TiO2film to substitute the compact blocking layer and scaffold layer for mesoscopic PSCs. The bottom of the CCM TiO2film was dense and the top was mesoporous with large uniform macropores. The two parts of the film were consecutive, which could promote the electron transport rate and decrease the charge recombination effectively. Moreover, due to the existence of macropores in the CCM TiO2film, it was propitious to the deposition of perovskite and charge separation for the perovskite layer. Over 15.0% of average power conversion efficiency (PCE) with high consistency photovoltaic performances was achieved for the CCM TiO2film based mesoscopic PSCs, which is higher than that with a classic mesoporous structure.
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.|University of Science and Technology of China , Hefei, 230026, P. R. China.
authors.forename: Xu-Hui
authors.initials: XH
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.|University of Science and Technology of China , Hefei, 230026, P. R. China.
authors.forename: Jia-Jiu
authors.initials: JJ
authors.lastname: Ye
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.|University of Science and Technology of China , Hefei, 230026, P. R. China.
authors.forename: Liang-Zheng
authors.initials: LZ
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.|University of Science and Technology of China , Hefei, 230026, P. R. China.
authors.forename: Hai-Ying
authors.initials: HY
authors.lastname: Zheng
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.|University of Science and Technology of China , Hefei, 230026, P. R. China.
authors.forename: Xue-Peng
authors.initials: XP
authors.lastname: Liu
authors.affiliation: Key Laboratory of Novel Thin Film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei, 230031, P. R. China.
authors.forename: Xu
authors.initials: X
authors.lastname: Pan
authors.affiliation: Beijing Key Laboratory of Novel Thin Film Solar Cells, North China Electric Power University , Beijing, 102206, P. R. China.
authors.forename: Song-Yuan
authors.identifier: http://orcid.org/0000-0001-5710-9208
authors.initials: SY
authors.lastname: Dai
keywords: charge recombination; consecutive; high consistency; macropore; mesoscopic perovskite solar cells