Optimization of SnO<sub>2</sub> electron transport layer for efficient planar perovskite solar cells with very low hysteresis
Abed Alrhman Eliwi, Mahdi Malekshahi Byranvand, Paul Faßl, Motiur Rahman Khan, Ihteaz M. Hossain, M. Frericks, Simon Ternes, Tobias Abzieher, Jonas A. Schwenzer, Thomas Mayer, Jan P. Hofmann, Bryce S. Richards, Uli Lemmer, Michael Saliba, Ulrich W. Paetzold
Abstract
In this work, we introduce a bilayer ETL composed of lithium (Li)-doped compact SnO 2 (c-SnO 2 ) and potassium-capped SnO 2 nanoparticle layers (NP-SnO 2 ) to enhance the electron extraction and charge transport properties in perovskite solar cells, resulting in an improved PCE and a strongly reduced J – V hysteresis.
Topics & Concepts
Perovskite (structure)Materials scienceHysteresisBilayerLithium (medication)PlanarDopingElectronLayer (electronics)Electron transport chainSolar cellOptoelectronicsChemical engineeringNanotechnologyCondensed matter physicsChemistryPhysicsMembraneBiochemistryComputer scienceQuantum mechanicsEngineeringEndocrinologyMedicineComputer graphics (images)Perovskite Materials and ApplicationsConducting polymers and applicationsChalcogenide Semiconductor Thin Films