Silver-bismuth double perovskite: variations on a theme

Teresa Gatti^a^,^b

^aCenter for Materials Research (ZfM), Justus Liebig University Giessen, Germany, Ludwigstraße, 23, Gießen, Germany

^bDepartment of applied science and technology (DISAT), Politecnico di Torino, Italy, Corso Duca degli Abruzzi, 24, Torino, Italy

Materials for Sustainable Development Conference (MATSUS)
Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)

#PbFreePero - The potential of lead-free perovskites: synthesis, properties, and applications

Barcelona, Spain, 2022 October 24th - 28th

Organizers: Loreta Muscarella, Eline Hutter and Hendrik Bolink

Invited Speaker, Teresa Gatti, presentation 119
DOI: https://doi.org/10.29363/nanoge.nfm.2022.119
Publication date: 11th July 2022

Silver-bismuth double perovskites (Ag-Bi DPs) are promising candidates for less toxic and highly stable metal halide perovskites, but their optoelectronic performances still lag behind those of the lead halide counterpart, due to the indirect nature of the bandgap and the strong electron-phonon coupling.[1] To overcome these limitations and enable use in photovoltaics and in other applications beyond photovoltaics,[2] researchers are investigating a large plethora of structural variations on these compounds, which might improve their properties and even reveal the emergence of unexected ones.

In this contribution, we will report on our recent efforts addressed at the tuning of the Ag-Bi DP scaffold optical properties, through the doping with lanthanide ions [3] and the variation of the dimensionality into 2D monolayer species.[4,5] We will also show some very recent results on the preparation of highly sustainable photovoltaic devices suitable for indoor applications such as those connected to the powering of the Internet of Things ecosystem,[6] based on Ag-Bi DP photoactive layers and carbon electrodes obtained from the recovery of waste (submitted work).

References

[1] Z. Jin, Z. Zhang, J. Xiu, H. Song, T. Gatti, Z. He "A critical review on Bismuth and Antimony-based halide perovskites for photovoltaics and optoelectronics" J. Mater. Chem. A 8, 16166-16188 (2020).

[2] L. A. Muscarella, E. M. Hutter "Halide double perovskite semiconductors beyond photovoltaics" ACS Energy Lett. 7, 2128–2135 (2022)

[3] F. Schmitz, K. Guo, J. Horn, R. Sorrentino, G. Conforto, F. Lamberti, R. Brescia, F. Drago, M. Prato, Z. He, U. Giovanella, F. Cacialli, D. Schlettwein, D. Meggiolaro, T. Gatti "Lanthanide induced photoluminescence in lead-free Cs2AgBiBr6 bulk perovskite: insights from optical and theoretical investigations" J. Phys. Chem Lett. 11, 8893-8900 (2020)

[4] F. Schmitz, J. Horn, N. Dengo, A. E. Sedykh, J. Becker, E. Maiworm, P. Bélteky, A. Kukovecz, S. Gross, F. Lamberti, K. Müller-Buschbaum, D. Schlettwein, D. Meggiolaro, M. Righetto, T. Gatti "Large cation engineering in two-dimensional silver-bismuth bromide double perovskites" Chem. Mater. 33, 4688-4700 (2021)

[5] F. Schmitz, R. Neisius, J. Horn, J. Sann, D. Schlettwein, M. Gerhard, T. Gatti "Tuning the optical properties of 2D monolayer silver-bismuth bromide double perovskite by halide substitution" Nanotechnology 33, 215706 (2022)

[6] V. Pecunia, L. Occhipinti, R. Z. Hoye "Emerging indoor photovoltaic technologies for sustainable Internet of Things" Adv. Energy Mater. 11, 2100698 (2021)

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