Corva, M., Ferrari, A., Rinaldi, M., Feng, Z., Roiaz, M., Rameshan, C., Rupprechter, G., Constantini, R., Dell´Angela, M., Pastore, G., Comelli, G., Seriani, N., & Vesselli, E. (2018). Vibrational fingerprint of localized excitons in a two-dimensional metal-organic crystal. Nature Communications, 9(4703). https://doi.org/10.1038/s41467-018-07190-1
General Physics and Astronomy; General Chemistry; Multidisciplinary; General Biochemistry, Genetics and Molecular Biology
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Abstract:
macrocycles, each hosting a single FeN₄ center, where a single carbon monoxide molecule can adsorb. In this heme-like biomimetic model system, excitons are generated by visible laser light upon a spin transition associated with the layer 2D crystallinity, and are simultaneously detected via the carbon monoxide ligand stretching mode at room temperature and near-ambient pressure. The proposed mechanism is supported by the results of infrared and time-resolved pump-probe spectroscopies, and by ab initio theoretical methods, opening a path towards the handling of exciton dynamics on 2D biomimetic crystals.
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Research Areas:
Structure-Property Relationship: 25% Materials Characterization: 25% Surfaces and Interfaces: 50%
