Temperature-dependent La- and Al-induced dipole behavior monitored by femtosecond pump/probe photoelectron spectroscopy

2010 ◽  
Vol 96 (13) ◽  
pp. 132902 ◽  
Author(s):  
Hiroaki Arimura ◽  
Richard Haight ◽  
Stephen L. Brown ◽  
Andrew Kellock ◽  
Alessandro Callegari ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Temperature Dependent ◽  
Pump Probe ◽  
Induced Dipole

Photoelectron Spectroscopy of Cold Hydrated Sulfate Clusters, SO42−(H2O)n(n= 4−7): Temperature-Dependent Isomer Populations

2009 ◽  
Vol 113 (19) ◽  
pp. 5567-5576 ◽  
Author(s):  
Xue-Bin Wang ◽  
Alina P. Sergeeva ◽  
Jie Yang ◽  
Xiao-Peng Xing ◽  
Alexander I. Boldyrev ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Temperature Dependent ◽  
Hydrated Sulfate

Oxidation of Planar and Plasmonic Ag Surfaces by Exposure to O2/Ar Plasma for Organic Optoelectronic Applications

MRS Advances ◽  
2016 ◽  
Vol 1 (14) ◽  
pp. 943-948 ◽  
Author(s):  
Christopher E. Petoukhoff ◽  
Catherine Antonick ◽  
Bala Murali Krishna M. ◽  
Keshav M. Dani ◽  
Deirdre M. O'Carroll
Keyword(s):  
Exposure Time ◽  
Photoelectron Spectroscopy ◽  
Dark Field ◽  
Binding Energies ◽  
Surface Oxide Layer ◽  
Pump Probe ◽  
Dark Field Microscopy ◽  
Ar Plasma ◽  
Organic Optoelectronic ◽  
Ultrathin Layer

ABSTRACTHere, we expose planar and plasmonic Ag surfaces to a low-power O2/Ar plasma to form an ultrathin surface oxide layer. We study the chemical state and morphology of the plasma-treated Ag surfaces using X-ray photoelectron spectroscopy, scanning electron microscopy, and dark-field microscopy. We observe the formation of an ultrathin layer (< 10 nm) composed of both AgOx and Ag2CO3 for a plasma exposure time of 1 s by investigating shifts in the Ag3d, O1s, and C1s core level binding energies. For an exposure time of 1 s, the surface structure of the planar and plasmonic Ag surfaces remains unchanged. For exposure times of 5 - 30 s, the planar Ag surfaces become porous and exhibit increased surface roughness. We demonstrate that the plasma-treated planar and plasmonic Ag surfaces lead to improvements in the excited-state population of a polymer:fullerene coating through ultrafast pump-probe reflectometry.

scholarly journals Temperature-Dependent Broadening of the Ultraviolet Photoelectron Spectrum of Au(110)

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5969
Author(s):  
Tomonari Nishida ◽  
Ikuo Kinoshita ◽  
Juntaro Ishii
Keyword(s):  
Fourier Transform ◽  
Temperature Dependence ◽  
Photoelectron Spectroscopy ◽  
Photoelectron Spectrum ◽  
Thermodynamic Temperature ◽  
Temperature Dependent ◽  
Photoelectron Emission ◽  
The Fourier Transform ◽  
The Relationship

To determine the thermodynamic temperature of a solid surface from the electron energy distribution measured by photoelectron spectroscopy, it is necessary to accurately evaluate the energy broadening of the photoelectron spectrum and investigate its temperature dependence. Broadening functions in the photoelectron spectrum of Au(110)’s surface near the Fermi level were estimated successfully using the relationship between the Fourier transform and the convolution integral. The Fourier transform could simultaneously reduce the noise of the spectrum when the broadening function was derived. The derived function was in the form of a Gaussian, whose width depended on the thermodynamic temperature of the sample and became broader at higher temperatures. The results contribute to improve accuracy of the determination of thermodynamic temperature from the photoelectron spectrum and provide useful information on the temperature dependence of electron scattering in photoelectron emission processes.

Sign in / Sign up

Export Citation Format

Share Document