Watching energy transfer in metalloporphyrin heterodimers using stimulated X-ray Raman spectroscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 24019462.
- Also identified by DOI 10.1073/pnas.1308604110 and PMC identifier 3785725.
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Abstract
Understanding the excitation energy transfer mechanism in multiporphyrin arrays is key for designing artificial light-harvesting devices and other molecular electronics applications. Simulations of the stimulated X-ray Raman spectroscopy signals of a Zn/Ni porphyrin heterodimer induced by attosecond X-ray pulses show that these signals can directly reveal electron-hole pair motions. These dynamics are visualized by a natural orbital decomposition of the valence electron wavepackets.