Electronic structure of tin oxides by electron energy loss spectroscopy and real-space multiple scattering calculations

被引：46

作者：

Moreno, MS ^{[1
]}

Egerton, RF

Rehr, JJ

Midgley, PA

机构：

[1] Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[2] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[3] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[4] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[5] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.71.035103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of the tin oxides SnO and SnO2 is studied using the fine structure of the Sn-M-4,M-5 and oxygen K-edges measured by electron energy loss spectroscopy (EELS). The experimental results are compared with real-space multiple scattering calculations. It is observed that both edges are overlapped. The calculations reveal that the observed fine structure is due largely to the oxygen states, and that it can be used to fingerprint each phase. The calculated densities of states are similar for both compounds and suggest a covalent nature. The structures appearing within the first 10 eV above the threshold arise from a covalent mixing of mainly O 2p and Sn 5s-p. For SnO the oxygen edge is satisfactorily reproduced. Discrepancies in the predicted energy position of the features in the EELS of SnO2 are briefly discussed.

引用

页数：6

共 22 条

[1] Transmission electron microscopy investigation of tin sub-oxide nucleation upon SnO2 deposition on silicon [J].

Alfonso, C ;

Charai, A ;

Armigliato, A ;

Narducci, D .

APPLIED PHYSICS LETTERS, 1996, 68 (09) :1207-1208

[2] Dynamic screening effects in x-ray absorption spectra [J].

Ankudinov, AL ;

Nesvizhskii, AI ;

Rehr, JJ .

PHYSICAL REVIEW B, 2003, 67 (11) :6

[3] Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure [J].

Ankudinov, AL ;

Ravel, B ;

Rehr, JJ ;

Conradson, SD .

PHYSICAL REVIEW B, 1998, 58 (12) :7565-7576

[4] First-principles investigations of the electronic, optical and chemical bonding properties of SnO2 [J].

Barbarat, P ;

Matar, SF ;

LeBlevennec, G .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (12) :2547-2550

[5] CALCULATED STATIC AND DYNAMIC PROPERTIES OF BETA-SN AND SN-O COMPOUNDS [J].

BLANCA, ELPY ;

SVANE, A ;

CHRISTENSEN, NE ;

RODRIGUEZ, CO ;

CAPPANNINI, OM ;

MORENO, MS .

PHYSICAL REVIEW B, 1993, 48 (21) :15712-15718

[6] Synthesis and characterization of SnO-carbon nanotube composite as anode material for lithium-ion batteries [J].

Chen, MH ;

Huang, ZC ;

Wu, GT ;

Zhu, GM ;

You, JK ;

Lin, ZG .

MATERIALS RESEARCH BULLETIN, 2003, 38 (05) :831-836

[7] Bulk-quantity synthesis and self-catalytic VLS growth of SnO2 nanowires by lower-temperature evaporation [J].

Chen, YQ ;

Cui, XF ;

Zhang, K ;

Pan, DY ;

Zhang, SY ;

Wang, B ;

Hou, JG .

CHEMICAL PHYSICS LETTERS, 2003, 369 (1-2) :16-20

[8] SnO reduction in lithium cells:: study by X-ray absorption, 119Sn Mossbauer spectroscopy and X-ray diffraction [J].

Chouvin, J ;

Olivier-Fourcade, J ;

Jumas, JC ;

Simon, B ;

Biensan, PH ;

Madrigal, FJF ;

Tirado, JL ;

Vicente, CP .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 494 (02) :136-146

[9] Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G ;

Pan, ZW ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2002, 81 (10) :1869-1871

[10]

Egerton RF., 2011, ELECT ENERGY LOSS SP

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