6533b7d7fe1ef96bd12683d2

RESEARCH PRODUCT

Time resolved photofragmentation of Au $_{n}^{+}$ and Ag $_{n}^{+}$ clusters (n = 9, 21)

J. ZieglerM. LindingerS.v. KuznetsovK. DasguptaS. KrückebergLutz SchweikhardG. DietrichK. LützenkirchenClemens Walther

subject

MillisecondMaterials sciencePhysics::OpticsPenning trapLaserAtomic and Molecular Physics and OpticsDissociation (chemistry)Ionlaw.inventionMicrosecondFragmentation (mass spectrometry)lawExcited statePhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsPhysics::Chemical PhysicsAtomic physics

description

Gold and silver cluster ions were produced by laser vaporization and stored in a Penning trap. After mass selection the cluster sizes of interest were illuminated by a laser pulse and electronically excited. Photoabsorption cross sections and fragmentation patterns were measured for photon energies of 2.3 eV to 5.2 eV. Unimolecular dissociation was observed time resolved on a microsecond to millisecond scale. Dissociation energies were deduced from the measured life times.

https://doi.org/10.1007/s004600050225