Electrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditions

Handle URI:
http://hdl.handle.net/10754/626696
Title:
Electrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditions
Authors:
Samu, Gergely F.; Scheidt, Rebecca A; Kamat, Prashant V.; Janáky, Csaba
Abstract:
The unique optoelectronic properties of lead halide perovskites have triggered a new wave of excitement in materials chemistry during the past five years. Electrochemistry, spectroelectrochemistry, and photoelectrochemistry could be viable tools both for analyzing the optoelectronic features of these materials and to assemble their hybrid architectures (e.g., solar cells). At the same time, the instability of these materials limits the pool of solvents and electrolytes that can be employed in such experiments. The focus of our study is to establish a stability window for electrochemical tests for all-inorganic CsPbBr3 and hybrid organic-inorganic MaPbI3 perovskites. In addition, we aimed to understand the reduction and oxidation events that occur and to assess the damage done during these processes at extreme electrochemical conditions. In this vein, we demonstrated the chemical, structural, and morphological changes of the films in both reductive and oxidative environments. Taking all these results together as a whole, we propose a set of boundary conditions and protocols for how electrochemical experiments with lead halide perovskites should be carried out and interpreted. We believe that the presented results will contribute to the understanding of the electrochemical response of these materials and lead to a standardization of results in the literature so that easier comparisons can be made.
Citation:
Samu GF, Scheidt RA, Kamat PV, Janáky C (2017) Electrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditions. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b04321.
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
KAUST Grant Number:
OCRF-2014-CRG3-2268
Issue Date:
6-Dec-2017
DOI:
10.1021/acs.chemmater.7b04321
Type:
Article
ISSN:
0897-4756; 1520-5002
Sponsors:
The authors thank Dr. Tatyana Orlova for taking the SEM images, Steven M. Kobosko for recording the XPS spectra, and Dr. Allen G. Oliver for recording the XRD patterns. We thank the ND Energy Materials Characterization Facility (MCF) for the use of the PHI VersaProbe II system. The MCF is funded by the Sustainable Energy Initiative (SEI), which is part of the Center for Sustainable Energy at Notre Dame (ND Energy). This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 716539). ELI-ALPS is supported by the European Union and co-financed by the European Regional Development Fund (GOP-1.1.1-12/B-2012-000, GINOP-2.3.6-15-2015-00001). The authors also thank Rendernet Ltd. for assistance in preparing the artwork in the TOC. PVK acknowledges the support of the by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy through award DE-FC02-04ER15533. Rebecca Scheidt acknowledges the support of King Abdullah University of Science and Technology (KAUST) through Award OCRF-2014-CRG3-2268. This is NDRL No 5190 from Notre Dame Radiation Laboratory.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorSamu, Gergely F.en
dc.contributor.authorScheidt, Rebecca Aen
dc.contributor.authorKamat, Prashant V.en
dc.contributor.authorJanáky, Csabaen
dc.date.accessioned2018-01-04T07:51:40Z-
dc.date.available2018-01-04T07:51:40Z-
dc.date.issued2017-12-06en
dc.identifier.citationSamu GF, Scheidt RA, Kamat PV, Janáky C (2017) Electrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditions. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b04321.en
dc.identifier.issn0897-4756en
dc.identifier.issn1520-5002en
dc.identifier.doi10.1021/acs.chemmater.7b04321en
dc.identifier.urihttp://hdl.handle.net/10754/626696-
dc.description.abstractThe unique optoelectronic properties of lead halide perovskites have triggered a new wave of excitement in materials chemistry during the past five years. Electrochemistry, spectroelectrochemistry, and photoelectrochemistry could be viable tools both for analyzing the optoelectronic features of these materials and to assemble their hybrid architectures (e.g., solar cells). At the same time, the instability of these materials limits the pool of solvents and electrolytes that can be employed in such experiments. The focus of our study is to establish a stability window for electrochemical tests for all-inorganic CsPbBr3 and hybrid organic-inorganic MaPbI3 perovskites. In addition, we aimed to understand the reduction and oxidation events that occur and to assess the damage done during these processes at extreme electrochemical conditions. In this vein, we demonstrated the chemical, structural, and morphological changes of the films in both reductive and oxidative environments. Taking all these results together as a whole, we propose a set of boundary conditions and protocols for how electrochemical experiments with lead halide perovskites should be carried out and interpreted. We believe that the presented results will contribute to the understanding of the electrochemical response of these materials and lead to a standardization of results in the literature so that easier comparisons can be made.en
dc.description.sponsorshipThe authors thank Dr. Tatyana Orlova for taking the SEM images, Steven M. Kobosko for recording the XPS spectra, and Dr. Allen G. Oliver for recording the XRD patterns. We thank the ND Energy Materials Characterization Facility (MCF) for the use of the PHI VersaProbe II system. The MCF is funded by the Sustainable Energy Initiative (SEI), which is part of the Center for Sustainable Energy at Notre Dame (ND Energy). This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 716539). ELI-ALPS is supported by the European Union and co-financed by the European Regional Development Fund (GOP-1.1.1-12/B-2012-000, GINOP-2.3.6-15-2015-00001). The authors also thank Rendernet Ltd. for assistance in preparing the artwork in the TOC. PVK acknowledges the support of the by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy through award DE-FC02-04ER15533. Rebecca Scheidt acknowledges the support of King Abdullah University of Science and Technology (KAUST) through Award OCRF-2014-CRG3-2268. This is NDRL No 5190 from Notre Dame Radiation Laboratory.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleElectrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditionsen
dc.typeArticleen
dc.identifier.journalChemistry of Materialsen
dc.contributor.institutionDepartment of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged, H-6720, Hungaryen
dc.contributor.institutionRadiation Laboratory, University of Notre Dame, Notre Dame, Indiana, 46556, United Statesen
dc.contributor.institutionDepartment of Chemistry and Biochemistry, University of Notre Dameen
dc.contributor.institutionELI-ALPS Research Institute, Szeged, Dugonics sq. 13, 6720, Hungaryen
kaust.grant.numberOCRF-2014-CRG3-2268en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.