Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Marco Niemietz"'
Publikováno v:
Applied Physics A. 96:679-684
Using time-resolved photoelectron spectroscopy, the decay channels of AuO 2 − and Au2O 2 − following photoexcitation with 3.1-eV photons have been studied. For AuO 2 − , a state with a rather long lifetime of 30 ps has been identified. Its deca
Publikováno v:
Chemical Physics Letters. 438:263-267
Photodesorption of O2 from size-selected AgnO-2 cluster anions with n = 2, 3, 4 and 8 was studied using time-resolved photoelectron spectroscopy (TR-PES). The spectra indicate that relaxations of photo-excited AgnO-2 clusters with n = even numbers ac
Publikováno v:
Applied Physics A. 87:615-619
We present time-resolved photoelectron spectra of mass-selected Ag2O2 anions. The anions are photoexcited by photons with an energy of 3.1 eV, and photoelectron spectra of the excited species Ag2O2 - * and the subsequently appearing fragments are rec
Publikováno v:
Chemical Physics Letters. 382:454-459
Relaxation dynamics of the optically excited state in Al-n with n=6 15 were studied using time-resolved two photon photoemission spectroscopy. Relaxation rates of these Al clusters are slower than those of some d-metal clusters which can be explained
Publikováno v:
Chemical Physics Letters. 380:99-104
Using TR-2PPE spectroscopy, direct evidence is provided that excited states of sp-metal clusters can live longer than one nanosecond. For Au 3 − , in addition, the high time resolution in the present work allows us to monitor the wave-packet motion
The decay path of an Ag8(O2)− cluster photoexcited by a 3.1 eV photon is elucidated using time-resolved photoelectron spectroscopy. Photoabsorption results in the formation of an excited state giving rise to a peak in the photoelectron spectra with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4aa7629cfeba7bbf57d873c213e2c10a
Photodissociation of the Au2Oanion following absorption of a 3.1 eV photon is studied using time-resolved photoelectron spectro- scopy. A new spectral feature appearing after 1 ps indicates the existence of a long-lived excited state with a geometry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::923490cf3cd8e80bcd0ccd6b526a0bfe
The decay mechanism of excited electronic states in small Ag nanoclusters is studied using time-resolved photoelectron spectroscopy. The low density of states in these clusters inhibits Auger-like decay channels that are responsible for ultrafast rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d4e004d1d810f379074e06db581c04f
Publikováno v:
Femtochemistry VII
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2abecdc0e89fe0b1bf4ce4c0f77cce00
https://doi.org/10.1016/b978-044452821-6/50040-x
https://doi.org/10.1016/b978-044452821-6/50040-x
Using femtosecond time-resolved two-photon photoemission spectroscopy, relaxation rates of the optically excited states in Al13− , Si4− , and Au6− clusters are estimated to be 250 fs , 1.2 ps , and about 1 ns , respectively. These clusters show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb3422410fd48bdd70b3803ff4a46571