DataVXChemistry of MaterialsPaper
journal article·2019-05-14

Synthesis, Properties, and Modeling of Cs1–xRbxSnBr3 Solid Solution: A New Mixed-Cation Lead-Free All-Inorganic Perovskite System

Andrea Bernasconi, Aurora Rizzo, Andrea Listorti, Arup Mahata, Edoardo Mosconi, Filippo De Angelis, Lorenzo Malavasi

Chemistry of Materials· Volume 31· Issue 9
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Source abstract

Abstract

In the present work, the substitution of cesium (Cs+) with rubidium (Rb+) in fully inorganic tin bromide perovskites Cs1–xRbxSnBr3, has been experimentally demonstrated by synthesizing pure single-phase samples in the CsSnBr3–Cs0.70Rb0.30SnBr3 compositional range. The substitution of Cs with Rb is responsible for structural modification from cubic to orthorhombic symmetry, which has been correlated with optical properties, as the band gap varies from 1.719 to 1.817 eV from CsSnBr3 to Cs0.70Rb0.30SnBr3 sample. Notably, all of the rubidium-embedding alloys present good air stability. All of these results are very straightforward and open the possibility to exploit the electrical and optical capabilities of this very promising family of lead-free materials.
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Research context

Metals & alloysElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Advancements in Solid Oxide Fuel Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, INSTM, Viale Taramelli 16, 27100 Pavia, Italy

CNR NANOTEC, Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy

Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Via per Arnesano, 73100 Lecce, Italy

Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto 8, I-06123 Perugia, Italy

Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy

Funding

Ministero dell???Istruzione, dell???Universit?? e della Ricerca

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