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In the obtained highly symmetric Pb<jats:sub>8<\/jats:sub>Ti<jats:sub>7<\/jats:sub>\u2010oxo cluster, the central TiO<jats:sub>6<\/jats:sub> octahedra are orthogonally extended to adjacent octahedra through corner\u2010sharing and the eight dopant lead ions form a cubic arrangement, making it the first molecular model of perovskite PbTiO<jats:sub>3<\/jats:sub>. Moreover, the clusters readily dissolved in chloroform and showed high solution stability, as confirmed by MALDI\u2010TOF MS measurements. Based on such solution processability, they can be easily spin\u2010coated to form homogeneous films, which were employed as electron\u2010transport materials in perovskite solar cells to give an average power conversion efficiency of around 15\u2009% and improved device stability. This newly developed bottom\u2010up cluster assembly method provides an efficient approach to the construction of atomically precise models of perovskite metal oxides as well as potential molecular tools to extend their applications.<\/jats:p>","DOI":"10.1002\/chem.202000911","type":"journal-article","created":{"date-parts":[[2020,3,24]],"date-time":"2020-03-24T23:47:01Z","timestamp":1585093621000},"page":"6894-6898","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Lead\u2010Doped Titanium\u2010Oxo Clusters as Molecular Models of Perovskite\u2010Type PbTiO<sub>3<\/sub> and Electron\u2010Transport Material in Solar Cells"],"prefix":"10.1002","volume":"26","author":[{"given":"Shuyu","family":"Zhou","sequence":"first","affiliation":[{"name":"State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences  350002 Fuzhou P.R. 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