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Spectral Diffusion of Single Dibenzoterrylene Molecules in 2,3‐Dimethylanthracene
Author(s) -
Tian Yuxi,
Navarro Pedro,
Kozankiewicz Boleslaw,
Orrit Michel
Publication year - 2012
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201200463
Subject(s) - anthracene , excitation , molecule , saturation (graph theory) , diffusion , molecular physics , dipole , single crystal , crystal (programming language) , materials science , chemistry , chemical physics , nuclear magnetic resonance , analytical chemistry (journal) , crystallography , photochemistry , physics , thermodynamics , organic chemistry , mathematics , quantum mechanics , combinatorics , computer science , programming language
Abstract We study single dibenzoterrylene molecules embedded in the dipolar disordered crystal 2,3‐dimethylanthracene at 1.25 K. Broad linewidths (about 1 GHz, ∼30 times broader than in the anthracene crystal), high saturation excitation intensities (∼1000 times larger than in anthracene), as well as strong spectral diffusions are observed. Additionally, spectral jumping is studied by varying the excitation intensity and the temperature. We propose that the spectral diffusion and dynamic disorder in this system arise from the combination of a static disorder with slight reorientations of the methyl groups of the host molecules.