ArticleJournal of the American Chemical Society2024
Rapid Exciton Transport and Structural Defects in Individual Porphyrinic Metal Organic Framework Microcrystals.
Article in Journal of the American Chemical Society, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 17 citations in OpenAlex.
- Guiding the De Novo Synthesis of Open Metal Frameworks Through Low-Symmetry Bent Linker for Hydrogen Isotope Separation.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- A guide to transient absorption spectroscopy for porous crystalline materials in photocatalysis.Nature communications · 2026Article
- Quantifying Non-Gaussian Diffusion in Transient Microscopy Using Excess Kurtosis.The journal of physical chemistry letters · 2026Article
- Porphyrinic MOF-derived novel nanocomposite for gastric anticancer and Helicobacter pylori photoantibacterial effect assay.Scientific reports · 2025Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To date, spectroscopic characterization of porphyrin-based metal organic frameworks (MOFs) has relied almost exclusively on ensemble techniques, which provide only structurally averaged insight into the functional properties of these promising photochemical platforms. This work employs time-resolved pump-probe microscopy to probe ultrafast dynamics in PCN-222 MOF single crystals. The simultaneous high spatial and temporal resolution of the technique enables the correlation of spectroscopic observables to both inter- and intracrystal structural heterogeneity. The pump-probe measurements show that significant differences in the excited state lifetime exist between individual PCN-222 crystals of an ensemble. On a single PCN-222 crystal, differences in excited state lifetime and photoluminescence quantum yield are found to correlate to microscale structural defects introduced at crystallization. Pump probe microscopy also enables the direct measurement of excited state transport. Imaging of exciton transport on individual MOF crystals reveals rapid, but subdiffusive exciton transport which slows on the 10s of ps time scale. Time-averaged exciton diffusion coefficients over the first 200 ps span a range of 0.27 to 1.0 cm
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Registered trials
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