Diamond Publications - Search Results

Search Again...

These results include publications that have not yet been reviewed and processed by Diamond Light Source. To view only processed publications click here.

You can use the folder icon under Actions to collate papers as required. You can then click on View Folder in the left-hand navigation to review and/or download your folder.

One item found (0 items not approved).

Instruments / Technical Area	Publication Details	Published	Actions
I15-1-X-ray Pair Distribution Function (XPDF)	Structural dynamics of melting and glass formation in a two-dimensional hybrid perovskite Chumei Ye , Lauren N. Mchugh , Pierre Florian , Ruohan Yu , Celia Castillo-Blas , Celia Chen , Arad Lang , Yuhang Dai , Jingwei Hou , David A. Keen , Sian E. Dutton , Thomas D. Bennett Nature Communications 16 DOI: 10.1038/s41467-025-61410-z Diamond Proposal Number(s): [35405] Open Access Show Abstract ▼ Abstract: Hybrid organic-inorganic perovskites (HOIPs) have garnered significant attention for their crystalline properties, yet recent findings reveal that they can also form liquid and glassy phases, offering an alternative platform for understanding non-crystalline materials. In this study, we present a detailed investigation into the structural dynamics of the melting and glass formation process of a two-dimensional (2D) HOIP, (S−(−)−1-(1−naphthyl)ethylammonium)2PbBr4. Compared to its crystalline counterpart, the glass exhibits superior mechanical properties, including higher Young’s modulus and hardness. Our structural studies reveal that the liquid and glass formed from the 2D HOIP exhibit network-forming behaviour, featuring limited short-range order within individual octahedra, partial retention of metal-halide-metal connectivity between neighbouring octahedra, and residual structural correlations mediated by organic cations. We then combine in situ variable-temperature X-ray total scattering experiments, terahertz far-infrared absorption spectroscopy and solid-state nuclear magnetic resonance techniques to study the melting mechanism and the nature of the HOIP liquid obtained. Our results deepen the understanding of the structural evolution and property relationships in HOIP glasses, providing a foundation for their potential applications in advanced phase-change material technologies.	Aug 2025

Instruments / Technical Area

Publication Details

Published

Actions

I15-1-X-ray Pair Distribution Function (XPDF)

Structural dynamics of melting and glass formation in a two-dimensional hybrid perovskite