TPEPICO studies near ionization threshold of argon and krypton clusters

Krauss, J.; Vries, J. de; Steger, H.; Kaiser, Edwin M.; Kamke, B.; Kamke, W.

doi:10.1007/bf01543930

Cited by 12 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[5][6][7][8][9][10][11][12] Recently, excitation and fluorescence spectra studies of neutral rare gas clusters have been reported [13][14][15] following the well documented work on rare gases in both the gas phase and solid state. Time-resolved measurements of Rg N clusters (RgϭAr, Kr, Xe) have resolved some aspects of the energy relaxation dynamics, in particular the importance of vibrational energy flow.…”

Section: Introductionmentioning

confidence: 99%

Size-effects on energy relaxation and excited-species desorption in krypton clusters: Fluorescence lifetime measurements with 10 eV laser excitation

Kanaev

Museur

Castex

1997

The Journal of Chemical Physics

View full text Add to dashboard Cite

Electronic spectroscopy of toluene-rare-gas clusters: The external heavy atom effect and vibrational predissociation J. Chem. Phys. 122, 194315 (2005); 10.1063/1.1899155High resolution measurements of kinetic energy release distributions of neon, argon, and krypton cluster ions using a three sector field mass spectrometer Spectroscopy and relaxation kinetics of the perturbed CO (b 3 Σ + ,v ′ =0,1,2) and CO (a ′ 3 Σ + , v ′ =31-36, 40, and 41) levels and reinterpretation of CO (a ′ 3 Σ + , v ′ =34 and 35) formation in the Kr (5s ′ [1/2] 0 )+ CO reaction Fluorescence lifetime measurements of Kr N clusters (Nϭ2 -2000) have been carried out using intense 10 eV laser excitation near 3 P 2 metastable atomic energy level. Two principal groups of electronically excited dimers Kr 2 * have been found in desorption: dimers, loosely bound near the ( 3 P 2 ϩ 1 S 0 ) dissociation limit, ejected from cooled clusters and dimers undergoing vibrational relaxation from hot clusters. The desorption is principally terminated when Nу50 at./cluster. The relaxation kinetics seems to converge to the properties of a solid state for 10 2 рN р10 3 at./cluster. A variation of the Kr 2 *(1 u /0 u Ϫ ) radiative lifetime, from 264 ns ͑in gas phase͒ to 440 ns (Nϭ10 2 ), has been found. An equilibrium cluster temperature of 57 K has been calculated from this (N) dependence.

show abstract

Section: Introductionmentioning

confidence: 99%

Size-effects on energy relaxation and excited-species desorption in krypton clusters: Fluorescence lifetime measurements with 10 eV laser excitation

Kanaev

Museur

Castex

1997

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…Equation (6) shows that h N i grows with G Ã raised to the power of about 1.5. This exponential factor can be compared to suggested exponential factors for Ar (1.997) (Krauss et al 1991), for H 2 O (1.886) (Bobbert et al 2002), for CO 2 (2.23) (Ramos et al 2005;Harnes et al 2011), and for NH 3 (1.348) (Bobbert et al 2002). Figure 4 shows that the experimentally determined DIE value stabilizes to ¡ 1.03 § 0:02 eV in region II.…”

mentioning

confidence: 89%

Formation and Growth of Clusters of Sulfur Dioxide

Harnes

Abu-samha

Winkler

et al. 2015

Aerosol Science and Technology

View full text Add to dashboard Cite

Formation and growth of neutral SO 2 clusters is investigated in an adiabatic-expansion setup by means of sulfur 2p (S2p) photoelectron spectroscopy and theoretical modeling. The shift in S2p ionization energy between the cluster and a single molecule, i.e., IE(cluster)-IE(monomer), is recorded and used to monitor the mean cluster size over a wide range of expansion conditions. The produced clusters were shown to fall into two different size regimes. Comparison between theoretical simulations and experimental observations suggests that while the smallest clusters belong to the ultrafine particle mode and have a liquidlike structure, the larger clusters belong to the accumulation mode of fine particles and possibly have a frozen cluster core. The transition between the two size/structure regimes occurs over a narrow interval in expansion conditions and may possibly reflect a change in growth mechanism from monomer addition to growth by cluster-cluster collisions.

show abstract

“…In the past two decades, many experimental and theoretical studies on Kr dimers 1-13 and trimers [14][15][16] have been reported. In the past two decades, many experimental and theoretical studies on Kr dimers 1-13 and trimers [14][15][16] have been reported.…”

Section: Introductionmentioning

confidence: 99%

Dissociation processes of Kr2+ and Kr3+ studied by threshold photoelectron-photoion coincidence measurements

Yoshii

Tsukamoto

Hayaishi

et al. 2005

The Journal of Chemical Physics

View full text Add to dashboard Cite

A time-of-flight (TOF) ion mass spectrum in coincidence with threshold photoelectrons was measured in the photon energy region between the first and second dissociation limits of Kr2(+) to examine the decay processes of the Kr2(+) II(1/2u) state. The measured TOF spectrum reveals that Kr+ fragment ions are produced through dissociation of the repulsive I(1/2g) state, which can be formed by the decay process of the II(1/2u) state accompanied with emission of photons. The potential-energy curve of the I(1/2g) state is deduced with detailed analysis of the observed TOF spectrum, in which the radiative lifetime of the II(1/2u) state was also derived to be 2.5 micros. Additionally, evidence of the dissociation process of Kr3(+) ions was obtained in the same photon energy region, where the dominant channel is Kr3(+) --> Kr2(+) + Kr.

show abstract

TPEPICO studies near ionization threshold of argon and krypton clusters

Cited by 12 publications

References 27 publications

Size-effects on energy relaxation and excited-species desorption in krypton clusters: Fluorescence lifetime measurements with 10 eV laser excitation

Size-effects on energy relaxation and excited-species desorption in krypton clusters: Fluorescence lifetime measurements with 10 eV laser excitation

Formation and Growth of Clusters of Sulfur Dioxide

Dissociation processes of Kr2+ and Kr3+ studied by threshold photoelectron-photoion coincidence measurements

Contact Info

Product

Resources

About