UM
Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach
Chen S.2; Hou Y.2; Chen H.2; Tang X.2; Langner S.2; Li N.2; Stubhan T.2; Levchuk I.2; Gu E.2; Osvet A.2; Brabec C.J.2
2018-02-26
Source PublicationAdvanced Energy Materials
ISSN16146840 16146832
Volume8Issue:6
AbstractCurrently, lead-based perovskites with mixed multiple cations and hybrid halides are attracting intense research interests due to their promising stability and high efficiency. A tremendous amount of 3D and 2D perovskite compositions and configurations are causing a strong demand for high throughput synthesis and characterization. Furthermore, wide bandgap (≈1.75 eV) perovskites as promising top-cell materials for perovskite–silicon tandem configurations require the screening of different compositions to overcome photoinduced halide segregation and still yielding a high open-circuit voltage (V ). Herein, a home-made high throughput robot setup is introduced performing automatic perovskite synthesis and characterization. Subsequently, four kinds of compositions (i.e., cation mixtures of Cs–methylammonium (MA), Cs– formamidinium (FA), MA–FA, and FA–MA) with an optical bandgap of ≈1.75 eV are identified as promising device candidates. For Cs–MA and Cs–FA films it is found that the Br–I phase segregation indeed can be overcome. Moreover, Cs–MA, MA–FA, and Cs–FA based devices exhibit an average V of 1.17, 1.17, 1.12 V, and their maximum values approached 1.18, 1.19, 1.14 V, respectively, which are among the highest V (≈1.2 V) values for ≈40% Br perovskite. These findings highlight that the high throughput approach can effectively and efficiently accelerate the invention of novel perovskites for advanced applications.
Keywordhigh throughput approach open-circuit voltage photoinduced phase segregation wide bandgap perovskites
DOI10.1002/aenm.201701543
URLView the original
Language英語
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Cited Times [WOS]:10   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Das Bayerische Zentrum für Angewandte Energieforschung e.V.
2.Friedrich-Alexander-Universität Erlangen-Nürnberg
3.Erlangen Graduate School in Advanced Optical Technologies (SAOT)
Recommended Citation
GB/T 7714
Chen S.,Hou Y.,Chen H.,et al. Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach[J]. Advanced Energy Materials,2018,8(6).
APA Chen S..,Hou Y..,Chen H..,Tang X..,Langner S..,...&Brabec C.J..(2018).Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach.Advanced Energy Materials,8(6).
MLA Chen S.,et al."Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach".Advanced Energy Materials 8.6(2018).
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