X-ray photoelectron spectroscopy of Al- and B-substituted sodium trisilicate glasses

Hsieh, C. H.; Jain, Himanshu; Miller, A. C.; Kamitsos, E. I.

doi:10.1016/0022-3093(94)90336-0

Cited by 61 publications

(49 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For evaluating the various spectra, the Si 2p peak at 103.5 eV is chosen as the most appropriate internal binding energy reference because the chemical environment of silicon remains essentially unaffected by aluminum substitution. 12 The binding energies of Na 1s, Al 2p, and O 1s peaks for the three types of oxygen ions are reported in Table I. It can be seen from Table I that, while the binding energies of A1 2p and O 1s electrons do not change significantly, the binding energy of Na 1s electrons increases by ϳ0.7 eV from sodium trisilicate glass to the glass containing the largest amount of aluminum.…”

Section: A X-ray Photoelectron Spectroscopymentioning

confidence: 86%

“…In the previous XPS study of the SAS glasses, 12 it was found from the analysis of O 1s spectra that aluminum ions form four coordinated tetrahedra at the expense of nonbridging oxygen ions. Since the aluminum tetrahedra, like the nonbridging oxygen ions, have a formal negative charge on them, some of the sodium ions which were associated with the nonbridging oxygen ions in the sodium trisilicate glass would become associated with the aluminum tetrahedra.…”

Section: A Chemical Structure Of Sas Glassesmentioning

confidence: 99%

“…This result was explained by considering the presence of three distinct types of oxygen atoms in Si-O-Si, Si-O-Al, and Si-O-Na bonds. 12 Here the O 1s spectra are decomposed into three components by first choosing the relative charge density of various types of oxygen as a guide for the initial binding energies for the three components. The computer program then determines the best fitted parameters with the constraint that the peak positions remain within Ϯ0.5 eV.…”

Section: A X-ray Photoelectron Spectroscopymentioning

confidence: 99%

“…However, to the best of our knowledge an explicit correlation between the dielectric constant and chemical structure has never been established. In our previous study of the structure of sodium aluminosilicate ͑SAS͒ glasses by x-ray photoelectron spectroscopy ͑XPS͒, 12 it was found that sodium ions are only partially ionized in sodium trisilicate glass and their ionicity increases when silicon is substituted by aluminum. The physical structure of the glass remains essentially unaffected because the a͒ Author to whom correspondence should be addressed; Electronic mail:…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Correlation between dielectric constant and chemical structure of sodium silicate glasses

Hsieh

Jain

Kamitsos

1996

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

The chemical structure of sodium aluminosilicate glasses is determined by high resolution x-ray photoelectron spectroscopy ͑XPS͒ as silicon is gradually replaced by aluminum. A well-defined chemical state is found for silicon, aluminum, and sodium atoms, while three different environments are identified for oxygen atoms corresponding to Si-O-Si, Si-O-Al, and Si-O-Na bonds. The binding energy of Na 1s photoelectrons increases significantly with increasing aluminum substitution while that of Al 2p and components of O 1s photoelectrons remains approximately constant. Thus, the ionicity of sodium increases with aluminum amount, but the over all electron density around silicon, aluminum, and different types of oxygen atoms remains unchanged. The dielectric constant of the glasses increases with increasing aluminum substitution. It is analyzed in terms of the polarizabilities of constituent structural units, viz., silicon tetrahedra, nonbridging oxygen-sodium ion pairs, and aluminum tetrahedron-sodium ion pairs. The electronic polarizability of oxygen ions depends linearly on their negative charge and can be correlated to the O 1s XPS binding energy. The ionic polarizability of sodium ions increases with an increasing aluminum amount, and correlates directly with the Na 1s XPS binding energy.

show abstract

Section: A X-ray Photoelectron Spectroscopymentioning

confidence: 86%

Section: A Chemical Structure Of Sas Glassesmentioning

confidence: 99%

Section: A X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Correlation between dielectric constant and chemical structure of sodium silicate glasses

Hsieh

Jain

Kamitsos

1996

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…XPS has also proved to be a useful tool for investigating the structure of oxide glasses [3]. For example, XPS is able to differentiate between bridging oxygen (BO) and non-bridging oxygen atoms (NBO) in the glass structure for binary glasses [4][5][6] as well as more complex systems [7][8][9][10]. Satellite structures associated with the 2p core level peaks of transition metals which have been introduced into oxide glasses have been observed and used qualitatively to identify the oxidation state of the TM ion [11].…”

Section: Introductionmentioning

confidence: 99%

Structure and magnetic properties of vanadium–sodium silicate glasses

Mekki

Khattak

Holland

et al. 2003

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

Vanadium-sodium silicate glasses with the chemical composition [ðV 2 O 5 Þ x (Na 2 O) 0:30 ðSiO 2 Þ 0:70Àx ] ð0:0 6 x 6 0:10Þ have been studied by X-ray photoelectron spectroscopy (XPS) and magnetization measurements. The core-level binding energies of O 1s, V 2p and Si 2p in these glasses have been measured for surfaces produced by in vacuo fracture. The peak position and width of the V 2p 3=2 peak are independent of the V 2 O 5 content while the O 1s core-level spectra show significant composition-dependent changes. Two distinct peaks are resolvable arising from the bridging oxygen and non-bridging oxygen (NBO) atoms in the silicate glasses. The fraction of NBO, determined from these spectra is found to increase with increasing V 2 O 5 content in the glass and are consistent with the formation of predominantly alkali metavanadate species. The magnetic susceptibility data of these glasses indicate a large, temperature-independent diamagnetic contribution arising from the glass matrix as well as small paramagnetic contribution from the V 4þ ions. The V 4þ content deduced from the magnetization results ($2%) is below the detection limit of XPS analysis.

show abstract

Surface modification of a silicate glass during XPS experiments

Sharma

Jain

Miller

2001

Surface & Interface Analysis

Self Cite

View full text Add to dashboard Cite

The surface chemistry of a commercial soda-lime silicate glass is shown to change during a long-duration XPS experiment wherein the glass surface was exposed to the monochromatic x-rays and low-energy electrons (0.2-5 eV) that compensate for the charging of the surface. The atomic percentage of sodium increases and that of oxygen decreases with increasing time of the experiment. The separate influence of x-rays and the low-energy electrons on the glass surface is also measured. The results show that diffusion of the sodium ions is enhanced more in the presence of x-rays than in the presence of low-energy electrons. All observations can be explained well by a model that considers the breaking of the bridging and non-bridging oxygen bonds, and the trapping of photoelectrons and the externally supplied electrons. Although long-duration XPS experiments show significant changes on the exposed surface, the chemical composition of the bulk glass obtained during a short experiment agrees well with that obtained from the chemical analysis.

show abstract

X-ray photoelectron spectroscopy of Al- and B-substituted sodium trisilicate glasses

Cited by 61 publications

References 19 publications

Correlation between dielectric constant and chemical structure of sodium silicate glasses

Correlation between dielectric constant and chemical structure of sodium silicate glasses

Structure and magnetic properties of vanadium–sodium silicate glasses

Surface modification of a silicate glass during XPS experiments

Contact Info

Product

Resources

About