9 February 1995 Excitonic emission of electrons from aromatic hydrocarbon crystals
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Proceedings Volume 2362, International Conference on Excitonic Processes in Condensed Matter; (1995) https://doi.org/10.1117/12.200952
Event: Excitonic Processes in Condensed Matter: International Conference, 1994, Darwin, Australia
Abstract
Electron emission has been observed with crystals of pyrene, (alpha) -perylene and anthracene excited with photons whose energies are less than the threshold for conventional monophotonic emission. It has been established that exciton fusion is responsible for this emission. In the case of pyrene, the lifetime of excitons observed through the excitonic photoemission is the same with that obtained from the fluorescence decay, whereas in (alpha) -perylene and anthracene the lifetime obtained from photoemission experiments is shorter compared to the fluorescence lifetime. It is considered that fluorescence measures the lifetime of excitons in the bulk of a crystal, whereas electron emission of this type probes excitons at the surface.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masaki Ono, Ryuzi Katoh, Masahiro Kotani, "Excitonic emission of electrons from aromatic hydrocarbon crystals", Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200952; https://doi.org/10.1117/12.200952
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