Highly efficient planar perovskite solar cells through band alignment engineering
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 TiO sub(2) ESL have been demonstrated, but these exhibit unstabilized power conversion efficiencies (PC...
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| Veröffentlicht in: | Energy & environmental science 2015-01, Vol.8 (10), p.2928-2934 |
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| container_title | Energy & environmental science |
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| creator | Correa Baena, Juan Pablo Steier, Ludmilla Tress, Wolfgang Saliba, Michael Neutzner, Stefanie Matsui, Taisuke Giordano, Fabrizio Jacobsson, TJesper Srimath Kandada, Ajay Ram Zakeeruddin, Shaik M Petrozza, Annamaria Abate, Antonio Nazeeruddin, Mohammad Khaja Graetzel, Michael Hagfeldt, Anders |
| 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 TiO sub(2) ESL have been demonstrated, but these exhibit unstabilized power conversion efficiencies (PCEs). Herein we show that planar PSCs using TiO sub(2) are inherently limited due to conduction band misalignment and demonstrate, with a variety of characterization techniques, for the first time that SnO sub(2) achieves a barrier-free energetic configuration, obtaining almost hysteresis-free PCEs of over 18% with record high voltages of up to 1.19 V. |
| doi_str_mv | 10.1039/c5ee02608c |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1754-5692 |
| ispartof | Energy & environmental science, 2015-01, Vol.8 (10), p.2928-2934 |
| issn | 1754-5692 1754-5706 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Energy conversion efficiency High voltages Perovskites Photovoltaic cells Simplification Solar cells Tin dioxide Tin oxides Titanium dioxide |
| title | Highly efficient planar perovskite solar cells through band alignment engineering |
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