Publications de Alexandre Rydlo

Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. I. Absorption spectroscopy

Wolfgang Harbich, Alexandre Rydlo, Stefan Minniberger, Matthieu Dvorak

The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) and rare gas or para-hydrogen samples is studied by means of laser-induced fluorescence excitation spectroscopy. The comparison between spectra of PTCDA embedded in a neon matr ...

American Institute of Physics2012

Spectroscopy of 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) attached to rare gas samples: Clusters vs. bulk matrices. II. Fluorescence emission spectroscopy

Wolfgang Harbich, Alexandre Rydlo, Stefan Minniberger, Matthieu Dvorak

The interaction between 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. Laser-excited PTCDA-doped large argon, neon, and para-hydrogen clusters along wi ...

American Institute of Physics2012

UV-visible absorption of small gold clusters in neon: Au-n (n=1-5 and 7-9)

Wolfgang Harbich, Alexandre Rydlo, Sylvain Lecoultre

We present optical absorption spectra in the UV-visible range (1.5 eV < E < 6 eV) for mass selected neutral gold clusters Au-n (n = 1-5 and 7-9) embedded in solid Ne at 7 K. The experimental spectra are compared with time-dependent density functional calcu ...

American Institute of Physics2011

Optical absorption of small copper clusters in neon: Cu-n, (n=1-9)

Wolfgang Harbich, Sylvain Lecoultre, Alexandre Rydlo

We present optical absorption spectra in the UV-visible range (1.6 eV < omega < 5.5 eV) of mass selected neutral copper clusters Cu-n(n = 1-9) embedded in a solid neon matrix at 7 K. The atom and the dimer have already been measured in neon ma ...

American Institute of Physics2011

Ultraviolet-visible absorption of small silver clusters in neon: Ag-n (n=1-9)

Wolfgang Harbich, Sylvain Lecoultre, Alexandre Rydlo

We present optical absorption and fluorescence spectra in the UV-visible range of size selected neutral Ag-n clusters (n = 1-9) in solid neon. Rich and detailed optical spectra are found with linewidths as small as 50 meV. These spectra are compared to tim ...

American Institute of Physics2011

Study of the Optical UV-Visible Electron Induced Luminescence of Small Size Selected Metal Clusters in Rare Gas Solids

Alexandre Rydlo

The optical properties of small size selected metal clusters have been studied by fluorescence spectroscopy. Cun (n = 1-5, 8), Agn (n = 1-5, 8, 9, 20), Aun (n = 1-5, 8) and Nin (n = 1-3) clusters embedded in condensed neon are photoionized by VUV photons i ...

EPFL2010

Gold dimer in neon: an absorption and fluorescence study

Wolfgang Harbich, Sylvain Lecoultre, Alexandre Rydlo

We report for the first time the absorption and fluorescence spectra of gold dimers in a neon matrix. The dimer absorption spectra show the A←X transition predicted from measurements in the gas phase and not observed so far in a matrix, as well as the so-c ...

2009

Optical absorption of small silver clusters: Agn, (n=4–22)

Sylvain Lecoultre, Alexandre Rydlo, Fabien Conus

We present a joint theoretical and experimental investigation of the absorption spectra of silver clusters Agn (4

2008

Efficient trapping of silver cations in a rare gas matrix: Ag3+ in argon

Sylvain Lecoultre, Alexandre Rydlo

Mass selected cations of Ag-clusters are deposited, together with Ar seeded with CO

_2

(or other electron scavengers such as O

_2

, N

_2

O, or CCl

_4

), on a cold substrate, while being flooded with low energy electrons. Optical absorption measurements re ...

2007

Matrix effects on the optical response of silver nanoclusters

Sylvain Lecoultre, Alexandre Rydlo, Fabien Conus

We report absorption spectra for Ag7, Ag9, and Ag11 in an argon matrix grown at a temperature of 28 K and compare them with previous spectra of the same species measured in matrices of argon grown at lower temperatures as well as in neon matrices. We discu ...

2006