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Photoluminescence Excitation Spectra of Solid Krypton
Author(s) -
Ackermann Ch.,
Brodmann R.,
Hann U.,
Suzuki A.,
Zimmerer G.
Publication year - 1976
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220740217
Subject(s) - exciton , excited state , photoluminescence , krypton , excitation , atomic physics , photoluminescence excitation , luminescence , quenching (fluorescence) , dipole , biexciton , diffusion , quantum yield , radius , molecular physics , chemistry , materials science , physics , condensed matter physics , optics , fluorescence , argon , optoelectronics , computer security , organic chemistry , quantum mechanics , computer science , thermodynamics
The excitation spectrum of the intrinsic photoluminescence of solid krypton has been investigated between 9.8 and 14eV. Samples with a clean surface yield a quantum efficiency which is within an uncertainty of ≈10% independent of the kind of initially excited states. Surface contamination reduces the steady‐state concentration of excited states leading to quenching of the intrinsic luminescence. In the region of excitonic excitation the energy transfer between excitons and the surface is investigated. Assuming exciton diffusion, a diffusion length L 0 = 200 Å is obtained for the n = 1 and n ′ = 1 excitons. Under the assumption of long range dipole–dipole interaction a critical radius R 0 = 22 Å is deduced.