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A New 1,3,4-Oxadiazole-Based Hole-Transport Material for Efficient CH3 NH3 PbBr3 Perovskite Solar Cells.
Journal article

A New 1,3,4-Oxadiazole-Based Hole-Transport Material for Efficient CH3 NH3 PbBr3 Perovskite Solar Cells.

  • Carli S Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121, Ferrara, Italy. crlsfn@unife.it.
  • Baena JP Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Station 6, 1015, Lausanne, Switzerland. juan.correa@epfl.ch.
  • Marianetti G Scuola Normale Superiore, 56126, Pisa, Italy.
  • Marchetti N Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121, Ferrara, Italy.
  • Lessi M Department of Chemistry and Industrial Chemistry, University of Pisa, 56126, Pisa, Italy.
  • Abate A Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland.
  • Caramori S Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121, Ferrara, Italy.
  • Grätzel M Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland.
  • Bellina F Department of Chemistry and Industrial Chemistry, University of Pisa, 56126, Pisa, Italy.
  • Bignozzi CA Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121, Ferrara, Italy.
  • Hagfeldt A Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Station 6, 1015, Lausanne, Switzerland.
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  • 2016-02-17
Published in:
  • ChemSusChem. - 2016
hole transport
oxadiazole
perovskite
solar cells
titania
Calcium Compounds
Calorimetry, Differential Scanning
Electric Power Supplies
Microscopy, Electron, Scanning
Oxadiazoles
Oxides
Solar Energy
Titanium
English A new hole-transport material (HTM) based on the 1,3,4-oxadiazole moiety (H1) was prepared through a single-step synthetic pathway starting from commercially available products. Thanks to a deep HOMO level, H1 was used as HTM in CH3 NH3 PbBr3 perovskite solar cells yielding an efficiency of 5.8%. The reference HTM (Spiro-OMeTAD), under the same testing conditions, furnished a lower efficiency of 5.1%. Steady-state and time-resolved photoluminescence of the thin films showed good charge-extraction dynamics for H1 devices. In addition, H1 shows a large thermal stability and completely amorphous behavior (as evaluated by thermal gravimetric analysis and differential scanning calorimetry).
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.rero.ch/global/documents/198019
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