Kosemen, ArifKosemen, Zuhal AlpaslanCanimkubey, BetulErkovan, MustafaBasarir, FevzihanSan, Sait ErenOrnek, Osman2024-07-182024-07-1820160038-092Xhttps://doi.org/10.1016/j.solener.2016.03.049https://hdl.handle.net/11411/8864Inverted P3HT:PCBM based organic solar cells were fabricated by using Fe2+ doped TiO2 films as electron selective layer. Pure and Fe2+ doped TiO2 films were prepared by sol gel method and the optical as well as the structural properties of the thin films were characterized by UV-Vis spectrophotometer and SEM. The concentration of Fe2+ was varied as 0.5%, 1%, 2% and 3% (w/w) in TiO2 layer and the influence of Fe2+ doping on the solar cell parameters were systemically investigated. Photocurrent density of the solar cells as increased from 8.75 to 13.8 mA/cm(2), whereas the solar cell efficiency changed from 1.7% to 2.79% by using Fe2+ doped TiO2 electron selective layer. It was experimentally found and demonstrated that charge injection and selection in the TiO2 interlayer was improved by doping of Fe2+ atoms in the TiO2. (C) 2016 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessInverted Type Solar CellsTio2 Thin FilmFe Doped Tio2 Thin FilmDoped Metal Oxide SemiconductorsTitanium-OxideDegradationEfficiencyArticle2-s2.0-8496270908610.1016/j.solener.2016.03.049517Q1511132Q1WOS:000377311400044