Authors
Juan Pablo Correa Baena, Ludmilla Steier, Wolfgang Tress, Michael Saliba, Stefanie Neutzner, Taisuke Matsui, Fabrizio Giordano, T Jesper Jacobsson, Ajay Ram Srimath Kandada, Shaik M Zakeeruddin, Annamaria Petrozza, Antonio Abate, Mohammad Khaja Nazeeruddin, Michael Grätzel, Anders Hagfeldt
Publication date
2015
Journal
Energy & Environmental Science
Volume
8
Issue
10
Pages
2928-2934
Publisher
Royal Society of Chemistry
Description
The simplification of perovskite solar cells (PSCs), by replacing the mesoporous electron selective layer (ESL) with a planar one, is advantageous for large-scale manufacturing. PSCs with a planar TiO2 ESL have been demonstrated, but these exhibit unstabilized power conversion efficiencies (PCEs). Herein we show that planar PSCs using TiO2 are inherently limited due to conduction band misalignment and demonstrate, with a variety of characterization techniques, for the first time that SnO2 achieves a barrier-free energetic configuration, obtaining almost hysteresis-free PCEs of over 18% with record high voltages of up to 1.19 V.
Scholar articles
JPC Baena, L Steier, W Tress, M Saliba, S Neutzner… - Energy & Environmental Science, 2015