title: SiW12-TiO2Mesoporous Layer for Enhanced Electron-Extraction Efficiency and Conductivity in Perovskite Solar Cells.
abstract: High quality electron-transport layer (ETL) with superior optical and electrical properties is an essential part in high efficient perovskite solar cells (PSCs). In this work, SiW12-TiO2mesoporous film is prepared by a facile one-step spin-coating deposition method and successfully applied as ETL in PSCs. Compared with pristine TiO2-based PSC, the SiW12-TiO2-based one shows a remarkable enhanced power conversion efficiency (PCE) from 12.00 to 14.66 %, which is owed to the higher conductivity, electron-extraction efficiency, and well-matched energy level alignment of SiW12-TiO2film. Moreover, the SiW12-TiO2-based device also shows a good long-time stability in under ambient conditions. This work demonstrates that using polyoxometalates (POMs) to modify the metal-oxide semiconductors is an effective approach for further enhancing the performance of PSCs.
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.|College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, P. R. China.
authors.forename: Guohua
authors.initials: G
authors.lastname: Dong
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Tengling
authors.initials: T
authors.lastname: Ye
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Yulin
authors.initials: Y
authors.lastname: Yang
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Sheng
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Debin
authors.initials: D
authors.lastname: Xia
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Junhai
authors.initials: J
authors.lastname: Wang
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Fan
authors.affiliation: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
authors.forename: Ruiqing
authors.initials: R
authors.lastname: Fan
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D004553:Electric Conductivity; D008855:Microscopy, Electron, Scanning; D010087:Oxides / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014025:Titanium / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D017610:Calcium Compounds; D010087:Oxides; C059910:perovskite; C009495:titanium dioxide; D014025:Titanium; D014414:Tungsten; D012825:Silicon
keywords: conductivity; electron-transport layer; perovskite solar cells; polyoxometalates; titanium oxide