Single dibenzoterrylene molecules in an anthracene crystal: spectroscopy and photophysics. |
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Authors: | Aurélien A L Nicolet Clemens Hofmann Mikhail A Kol'chenko Boleslaw Kozankiewicz Michel Orrit |
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Institution: | MoNOS, Huygens Laboratory, Leiden University, 2300 RA Leiden, The Netherlands. |
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Abstract: | We study single dibenzoterrylene molecules in an anthracene single crystal at 1.4 K in two insertion sites at 785.1 and 794.3 nm. The single-molecule zero-phonon lines are narrow (about 30 MHz), intense (the detected fluorescence rates at saturation reach 100,000 counts s(-1)), and very photostable. The intersystem-crossing yield is extremely low (10(-7) or lower). All of these features are hallmarks of an excellent system for high-resolution spectroscopy and nanoscale probing at cryogenic temperatures. |
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Keywords: | fluorescence host–guest systems laser spectroscopy molecular electronics single‐molecule studies |
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