FMD³
Functional Materials Design, Discovery & Development
Welcome to Prof. Eddaoudi’s
RESEARCH GROUP!
The Functional Materials Design, Discovery & Development research group, headed by Prof. Mohamed Eddaoudi, is mainly focusing on the development of new strategies to design and synthesize new functional solid-state materials for different applications such as gas storage/separation, catalysis. In order to address challenging societal issues such as carbon capture, FMD3 has set up strategies for the construction of nanosized, thin films and membranes based MOFs.
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RESEARCH PROJECTS
What's
NEW?
Thermally activated delayed fluorescence (TADF) X-ray scintillators have attracted increasing attention because of their theoretical ability to utilize 100% radiation-induced excitons. However, their scintillation performance is severely hampered by their typically low X-ray attenuation efficiencies or mechanochromic properties. Here, we demonstrate hybrid organic–inorganic TADF scintillators with remarkably high X-ray absorption cross sections based on non-mechanochromic Cu2X2 (X = Cl, Br, or I) nanoclusters. The Cu2X2 nanoclusters display radioluminescence light yields as high as 175 000 photons MeV–1, attributable to their low self-absorption and spatially separated HOMO and LUMO orbitals. Furthermore, because of their non-mechanochromic properties, these nanoclusters can be formed into scintillating screens with excellent radiation and humidity stability via soft-pressing. The fabricated TADF scintillating screens display a high X-ray imaging efficiency, benefiting from their high light yields and high spatial resolutions (∼30 lp mm–1). This work highlights the promise TADF Cu2X2 nanocluster-based scintillators have in meeting the demanding requirements of cutting-edge X-ray imaging.