Determination of nanoscale titanium oxide thin film phase composition using X-ray photoelectron spectroscopy valence band analysis

AbstractX-ray photoelectron spectroscopy can be used to measure the ionization energies of electrons in both valence band and core orbitals. As core vacancies are the initial states for X-ray emission, a knowledge of their energies for all atoms in a mineral enables all the X-ray spectra to be placed on a common energy scale. X-ray spectra are atom specific and are governed by the dipole selection rule. Thus the individual bonding roles of the different atoms are revealed by the fine structure of valence X-ray peaks (i.e. peaks which result from electron transitions between valence band orbitals and core vacancies). The juxtaposition of such spectra enables the composition of the molecular orbitals that make up the chemical bonds of a mineral to be determined.Examples of this approach to the direct determination of electronic structure are given for silica, forsterite, brucite, and pyrite. Multi-electron effects and developments involving anisotropic X-ray emission from single crystals are also discussed.

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X-Ray-Photoelectron-Spectroscopy Determination of the Valence Band Structure of Polymeric Sulfur Nitride,(SN)x

Physical Review Letters ◽

10.1103/physrevlett.35.1803 ◽

1975 ◽

Vol 35 (26) ◽

pp. 1803-1806 ◽

Cited By ~ 48

Author(s):

P. Mengel ◽

P. M. Grant ◽

W. E. Rudge ◽

B. H. Schechtman ◽

D. W. Rice

Keyword(s):

Band Structure ◽

Valence Band ◽

Photoelectron Spectroscopy ◽

Valence Band Structure ◽

X Ray

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Determination of the valence band offsets at HfO2 /InN(0001) and InN/In0.3 Ga0.7 N(0001) heterojunctions using X-ray photoelectron spectroscopy

physica status solidi (a) ◽

10.1002/pssa.200983544 ◽

2010 ◽

Vol 207 (6) ◽

pp. 1335-1337 ◽

Cited By ~ 2

Author(s):

Anja Eisenhardt ◽

Andreas Knübel ◽

Ralf Schmidt ◽

Marcel Himmerlich ◽

Joachim Wagner ◽

...

Keyword(s):

Valence Band ◽

Photoelectron Spectroscopy ◽

Band Offsets ◽

X Ray

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Determination of band alignment between GaOx and boron doped diamond for selective-area-doped termination structure

Chinese Physics B ◽

10.1088/1674-1056/ac464e ◽

2021 ◽

Author(s):

Qi-Liang Wang ◽

Shi-Yang Fu ◽

Si-Han He ◽

Hai-Bo Zhang ◽

Shao-Heng Cheng ◽

...

Keyword(s):

Thin Film ◽

Photoelectron Spectroscopy ◽

Rf Magnetron Sputtering ◽

Band Alignment ◽

Boron Doped Diamond ◽

Small Surface ◽

X Ray ◽

Selective Area ◽

Boron Doped

Abstract n-GaOx thin film is deposited on the single crystal boron doped diamond through RF magnetron sputtering to form a pn heterojunction. The n-GaOx thin film presents a small surface roughness and a large optical band gap of 4.85 eV. In addition, the band alignment is measured by using X-ray photoelectron spectroscopy to evaluate the heterojunction property. The GaOx/diamond heterojunction shows a type-II staggered band configuration with the valence and conduction band offsets are of 1.28 eV and 1.93 eV, respectively. Those results confirm the feasibility to use n-GaOx as termination structure for diamond power device.

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Controlled Synthesis of Nanostructured Nickel Oxide Thin Film for Supercapacitor Application

Advanced Science Letters ◽

10.1166/asl.2018.12155 ◽

2018 ◽

Vol 24 (8) ◽

pp. 5587-5592

Author(s):

S. C Bhise ◽

D. V Awale ◽

M. M Vadiyar ◽

S. K Patil ◽

B. N Kokare ◽

...

Keyword(s):

Thin Film ◽

Photoelectron Spectroscopy ◽

Electrochemical Impedance ◽

Oxide Thin Film ◽

Storage Device ◽

Controlled Synthesis ◽

X Ray Diffraction ◽

X Ray ◽

Supercapacitor Application ◽

Nio Thin Film

In the present work we report the controlled synthesis of NiO thin film with nano-leaves like morphology using reflux method. The synthesized NiO electrode is used as working electrode for supercapacitor application. The deposited NiO thin film was characterized using thermogravimetric (TGA) analysis, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The supercapacitor behaviour of NiO was investigated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy using 3 M KOH electrolyte. The electrochemical results show specific capacitance of 513 F g−1 at 10 mV s−1 scan rate, power density (10.44 kW kg−1), energy density (14 Wh kg−1) and 85% capacitance retention over 5000 cycles. These remarkable results indicate the importance of the NiO nano-leaves electrode in energy storage device.

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