Impact of Transition Metal Doping on the Structural and Optical Properties of Halide Perovskites

Metal-ion doping into halide perovskite materials is a promising approach to enhance long-term film stability and, thus, improve solar cell performance. Moreover, the idea of doping metals into halide perovskites can also be driven by applications in heterogeneous catalysis. Here, we investigate the...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry of materials 2021-08, Vol.33 (15), p.6099-6107
Main Authors: Wieghold, Sarah, Luo, Yanqi, Bieber, Alexander S, Lackner, Jens, Shirato, Nozomi, VanOrman, Zachary A, Rosenmann, Daniel, Nienhaus, Karin, Lai, Barry, Nienhaus, Gerd Ulrich, Rose, Volker, Nienhaus, Lea
Format: Article
Language:English
Subjects:
Doping
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Palladium
Perovskites
Platinum
Thin films
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Metal-ion doping into halide perovskite materials is a promising approach to enhance long-term film stability and, thus, improve solar cell performance. Moreover, the idea of doping metals into halide perovskites can also be driven by applications in heterogeneous catalysis. Here, we investigate the incorporation of the catalytically active transition metals Pt and Pd into mixed-halide perovskite materials. We find that Pt aggregates in large clusters in iodine- and bromine-rich perovskite film compositions, whereas Pd incorporation depends on the underlying bromine to iodine ratio. By using optical and structural characterization methods, we observe that phase segregation in the perovskite layer is suppressed upon doping of either of these metals into the material. This approach further shows the potential to obtain catalytically active halide perovskite films in which the perovskite can serve as a host matrix.
ISSN:0897-4756
1520-5002
DOI:10.1021/acs.chemmater.1c01645