ArticleProceedings of the National Academy of Sciences of the United States of America2024
Excimer formation in zinc-phthalocyanine revealed using ultrafast electron diffraction.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Prospects for direct electron detectors in ultrafast electron diffraction and scattering experiments.Structural dynamics (Melville, N.Y.) · 2026Article
- Controlling the fate of two triplet states: solid-state annihilator design for photon upconversion.Chemical science · 2026Review
- Excimer formation in zinc-phthalocyanine revealed using ultrafast electron diffraction.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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7 authors.
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Abstract
The formation of excited dimer states, so called excimers, is an important phenomenon in many organic molecular semiconductor solid state aggregates. In contrast to Frenkel exciton-polarons, an excimer is long-lived and energetically low-lying due to stabilization resulting from a substantial reorganization of the intermolecular geometry. Here, we show that ultrafast electron diffraction can follow the dynamics of solid-state excimer formation in polycrystalline thin films of a molecular semiconductor, revealing both the key reaction modes and the eventual structure of the emitting state. We study the prototypical organic semiconductor zinc-phthalocyanine (ZnPc) in its crystallographic
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