Enhancing the Charge Extraction and Stability of Perovskite Solar Cells Using Strontium Titanate (SrTiO3) Electron Transport Layer - Neophytou, M; De, Bastiani M; Gasparini, N; Aydin, E; Ugur, E; Seitkhan, A; Moruzzi, F; Choaie, Y; Ramadan, AJ; Troughton, J; Hallani, R; Savva, A; et al. (ACS APPLIED ENERGY MATERIALS, 2019)