Creation of secondary excitons in solid Ar observed in the luminescence of molecular self-trapped excitons (M-STE)

Gminder, E.; Kirm, M.; Kisand, Vambola; Steeg, B.; Vielhauer, S.; Zimmerer, G.

doi:10.1016/s0022-2313(99)00291-4

Cited by 2 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Figs. 9 and 10, data are presented for Ar [24,31] and Ne [24]. In the case of Ar, the singlet component of the STE has been chosen as a fast decay channel for time-resolved excitation spectra (observation at 10.21 eV), in the case of Ne, the emissions of the atomic-type STE at 16.75 eV and of the so-called W-band at 15.5 eV were used for time-integrated measurements.…”

Section: The Special Case Of Argon and Neonmentioning

confidence: 99%

Prompt and delayed secondary excitons in rare gas solids

Kirm

Vielhauer

Zimmerer

et al. 2003

Low Temperature Physics

View full text Add to dashboard Cite

Direct and indirect creation of excitons in rare gas solids has been investigated with reflectivity and luminescence spectroscopy. For the heavy rare gas solids Kr and Xe, new and more reliable exciton parameters have been deduced. With time-resolved luminescence spectroscopy, fast and delayed secondary-exciton creation has been established and separated. Thermalization of photocarriers and their delayed recombination have been analyzed, including a first attempt to investigate the influence of excitation density on the carrier dynamics. The existence of excitonic side bands of ionization limits E i (either band gap or inner-shell ionization limits) in prompt secondary exciton creation has been established. The threshold energies of these side bands are given by E E nE i th ex » + (n is integer, E ex is exciton energy). The side bands are ascribed to the formation of electronic polaron complexes, superimposed to inelastic scattering of photoelectrons.

show abstract

Section: The Special Case Of Argon and Neonmentioning

confidence: 99%

Prompt and delayed secondary excitons in rare gas solids

Kirm

Vielhauer

Zimmerer

et al. 2003

Low Temperature Physics

View full text Add to dashboard Cite

show abstract

“…It made it possible to investigate recently the effects of exciton mixing in RGS and branched relaxation of electronic excitations. [2][3][4][5] But the measurement of excitation efficiency of free exciton luminescence within the absorption band of the lowest Γ(3/2) n = 1 excitons itself is attended by inevitable coincidence of the wavelength of exciting and emitting photons and usually it was not carried out in the experimental works. At the same time spatial and temporal fluctuation of the lattice potential caused by phonons and deformability of the lattice induce the broadening and existence of the low-energy tail of the excitonic absorption spectra and dressing of excitons by phonons, which leads to self-trapping of excitons.…”

Section: Introductionmentioning

confidence: 99%

Photon Yield From Solid Krypton and Xenon at the Edge of Exciton Absorption

et al. 2002

View full text Add to dashboard Cite

The spectra of photon yield from solid Xe and Kr were measured in the energy range of absorption of Γ(3/2) n = 1 excitons. Using combination of time-resolved spectroscopy with selective photoexcitation by synchrotron radiation, the creation of free excitons was experimentally separated from direct population of molecular emitting centers. For the first time the threshold of photon absorption by molecular trapped centers is observed in excitation spectra of free exciton luminescence.

show abstract

Creation of secondary excitons in solid Ar observed in the luminescence of molecular self-trapped excitons (M-STE)

Cited by 2 publications

References 7 publications

Prompt and delayed secondary excitons in rare gas solids

Prompt and delayed secondary excitons in rare gas solids

Photon Yield From Solid Krypton and Xenon at the Edge of Exciton Absorption

Contact Info

Product

Resources

About