April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)
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2024 MRS Spring Meeting & Exhibit
EN10.16.12

Novel 3D Cubic Topology in Hybrid Lead Halides with a Symmetric Aromatic Triammonium Exhibiting Water Stability

When and Where

Apr 25, 2024
5:00pm - 7:00pm
Flex Hall C, Level 2, Summit

Presenter(s)

Co-Author(s)

Eugenia Vasileiadou1,Imra S. Tajuddin1,Michael C. De Siena1,Vladislav V. Klepov1,Mikaël Kepenekian2,George Volonakis2,Jacky Even2,Lukasz Wojtas3,Ioannis Spanopoulos3,Xiuquan Zhou1,Abishek Iyer1,Julie L Fenton4,William Dichtel1,Mercouri Kanatzidis1

Northwestern University1,Univ. Rennes2,University of South Florida3,The Pennsylvania State University4

Abstract

Eugenia Vasileiadou1,Imra S. Tajuddin1,Michael C. De Siena1,Vladislav V. Klepov1,Mikaël Kepenekian2,George Volonakis2,Jacky Even2,Lukasz Wojtas3,Ioannis Spanopoulos3,Xiuquan Zhou1,Abishek Iyer1,Julie L Fenton4,William Dichtel1,Mercouri Kanatzidis1

Northwestern University1,Univ. Rennes2,University of South Florida3,The Pennsylvania State University4
The limitations of three-dimensional (3D) perovskites are related to their narrow structural tunability of the organic cations and their moisture sensitivity. Herein, we report a new family of 3D cubic hybrid metal halides (T-Et6)3Pb11X31 (X = I, Br), where T is 1,3,5-tris-(4-aminophenyl)benzene. The materials are synthesized through an in situ N-alkylation of T and an efficient one-step solvothermal reaction containing ethanol, initiating a tunable synthetic avenue for the acquisition of structurally complex hybrid halides with luminophores. (T-Et6)3Pb11X31 consist of an unprecedented Ia3 framework of [Pb11X31]9– one-dimensional (1D) chains embedded with (T-Et6)3+ cations, affording an overall 3D topology. The constituent [Pb11X31]9– chains include exclusively octahedral lead halide units with clusters of face- and edge-sharing connectivity, giving rise to weak broad emission centered at ∼660 nm observed at 78 K. (T-Et6)3Pb11I31 demonstrates water stability for at least 7 days. Synthesis through ambient pressure results in tunable structural variations of zero-dimensional (0D) structures rendering T7Pb3Br27DMF and T2Sn3Br184H2O0.5Br2, both of which feature blue PL emission at room temperature.

Keywords

crystallographic structure | hydrothermal

Symposium Organizers

Ivan Mora-Sero, Universitat Jaume I
Michael Saliba, University of Stuttgart
Carolin Sutter-Fella, Lawrence Berkeley National Laboratory
Yuanyuan Zhou, Hong Kong University of Science and Technology

Symposium Support

Silver
Journal of Energy Chemistry

Session Chairs

Michael Saliba
Carolin Sutter-Fella

In this Session