Threshold photoelectron spectroscopy of benzene up to 26.5 eV

2004 ◽  
Vol 82 (6) ◽  
pp. 1061-1066 ◽  
Author(s):  
Andrew J Yencha ◽  
Richard I Hall ◽  
Lorenzo Avaldi ◽  
Grant Dawber ◽  
Andrew G McConkey ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Photoelectron Spectrum ◽  
Rydberg States ◽  
Collection Method ◽  
Electron Collection ◽  
Ionization Region ◽  
Valence Bands ◽  
Outer Valence

The threshold photoelectron spectrum of benzene has been recorded up to 26.5 eV photon energy under high-resolution conditions using synchrotron radiation and employing the penetrating-field threshold electron collection method. By means of a direct comparative study with a recent HeI photoelectron spectrum of benzene of equally high resolution, numerous autoionization effects are observed in the formation of the ionic band systems of benzene in the outer valence ionization region in the threshold photoelectron spectrum. The Rydberg states responsible for these effects are identified. Autoionization does not appear to play a role in the formation of the two lowest-energy, inner-valence bands of C6H6+.Key words: threshold photoelectron spectroscopy, photoelectron spectroscopy, benzene, ionization, autoionization, Rydberg states.

Oxidized silicon surfaces studied by high resolution Si 2p core-level photoelectron spectroscopy using synchrotron radiation

2001 ◽  
Vol 280 (1-3) ◽  
pp. 150-155 ◽  
Author(s):  
Florence Jolly ◽  
François Rochet ◽  
Georges Dufour ◽  
Christoph Grupp ◽  
Amina Taleb-Ibrahimi
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Core Level ◽  
Silicon Surfaces

Investigating Electronic and Chemical Properties of Ge/GeOxNy/HfO2 Gate Stacks : High-Resolution Photoelectron Spectroscopy Using Synchrotron Radiation

2019 ◽  
Vol 3 (2) ◽  
pp. 385-390
Author(s):  
Olivier J. Renault ◽  
Eugénie Martinez ◽  
Lionel Fourdrinier ◽  
Laurent Clavelier ◽  
Nick Barrett ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Chemical Properties ◽  
Gate Stacks ◽  
And Chemical Properties

HIGH-RESOLUTION PHOTOELECTRON SPECTROSCOPY BY SPECTRAL PHASE STEP MODULATION

2013 ◽  
Vol 22 (04) ◽  
pp. 1350045
Author(s):  
YUNXIA HUANG ◽  
SHUWU XU ◽  
XIAOHUA YANG
Keyword(s):  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Photoelectron Spectrum ◽  
Modulation Depth ◽  
Spectral Phase ◽  
State Structure ◽  
Phase Step ◽  
Excite State ◽  
Broadband Spectrum ◽  
Photon Ionization

Femtosecond-induced resonance-enhanced multi-photon ionization photoelectron spectroscopy (REMPI-PES) has the drawback of low spectral resolution due to broadband spectrum of the laser. In this paper, we theoretically demonstrate that high-resolution REMPI-PES can be achieved by shaping the femtosecond laser pulse with spectral phase step modulation. Our results show that, by manipulating the phase step position and the modulation depth, a narrowband peak or hole in the photoelectron spectrum can be observed, and the position of the narrowband peak or hole is correlated with the eigenenergy of the excite state. Therefore, both high-resolution REMPI-PES and the excited state structure can be obtained by observing the narrowband peaks or holes.

Improvement of spectrometer energy resolution for high-resolution photoelectron spectroscopy

1998 ◽  
Vol 5 (3) ◽  
pp. 1020-1022 ◽  
Author(s):  
H. Iwai ◽  
H. Namba ◽  
Y. Kido ◽  
M. Taguchi ◽  
R. Oiwa
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Kinetic Energy ◽  
Energy Resolution ◽  
Photoelectron Spectroscopy ◽  
High Energy ◽  
Resolving Power ◽  
High Energy Resolution ◽  
Operation Conditions ◽  
Optimized Conditions

For high-energy-resolution photoelectron spectroscopy using synchrotron radiation, the energy resolution of a commercial compact photoelectron spectrometer (hemispherical concentric spectrometer) was improved by reducing the size of the entrance and detector slits and optimizing the operation conditions of the lens voltage. Under the optimized conditions, ray-tracing simulations show that severe spectral intensity decreases can be avoided. An energy resolution of 6.2 meV and a resolving power of 8100 at a kinetic energy of 50 eV were experimentally obtained.

High-resolution photoelectron spectroscopy using multibunch synchrotron radiation:

1998 ◽  
Vol 231 (2-3) ◽  
pp. 121-143 ◽  
Author(s):  
C.-W Hsu ◽  
M Evans ◽  
S Stimson ◽  
C.Y Ng ◽  
P Heimann
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy
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