Photoelectron emission studies of cleaved and excimer laser irradiated single-crystal surfaces of NaNO3 and NaNO2

被引：35

作者：

Bandis, C ^{[1
]}

Scudiero, L ^{[1
]}

Langford, SC ^{[1
]}

Dickinson, JT ^{[1
]}

机构：

[1] Washington State Univ, Dept Phys, Surface Dynam Lab, Pullman, WA 99164 USA

来源：

SURFACE SCIENCE | 1999年 / 442卷 / 03期

基金：

美国国家科学基金会;

关键词：

radiation damage; sodium nitrate; surface photochemistry; ultraviolet photoelectron spectroscopy; X-ray photoelectron spectroscopy;

D O I：

10.1016/S0039-6028(99)00953-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Inorganic nitrates are susceptible to radiation damage, including ultraviolet (UV) laser irradiation. We present a monochromatized X-ray photoelectron spectroscopy (XPS) and He II (40.8 eV) ultraviolet photoemission spectroscopy (UPS) study of melt-grown single-crystal NaNO3 and NaNO2 cleaved and excimer laser irradiated surfaces. Our results show that the changes observed in the NaNO3 spectra due to both X-ray and UV excimer laser irradiation are consistent with decomposition initiated by the pi-->pi* transition in the NO3- anion. Furthermore, we find very similar decomposition products for both X-ray and UV excimer laser irradiated surfaces, which mainly include sodium nitrite and sodium peroxide. Finally, direct comparison of our experimental UPS and XPS valence-band electron-energy distributions with the calculated total density of states shows good agreement between theory and experiment for both NaNO3 and NaNO2. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：413 / 419

页数：7

共 25 条

[1] ELECTRON-STIMULATED, X-RAY-STIMULATED, AND ION-STIMULATED DECOMPOSITION OF NITRATE SALTS [J].

ADURU, S ;

CONTARINI, S ;

RABALAIS, JW .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (08) :1683-1688

[2]

[Anonymous], 1992, HDB XRAY PHOTOELECTR

[3] AUGER AND X-RAY PHOTOELECTRON SPECTROSCOPIC STUDY OF SODIUM METAL AND SODIUM OXIDE [J].

BARRIE, A ;

STREET, FJ .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1975, 7 (01) :1-31

[4] VALENCE-LEVEL STUDIES OF SOME FIRST AND SECOND ROW OXYANIONS BY X-RAY PHOTOELECTRON-SPECTROSCOPY [J].

CALABRESE, A ;

HAYES, RG .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1975, 6 (01) :1-16

[5] THE ROLE OF THE AUGER MECHANISM IN THE RADIATION-DAMAGE OF INSULATORS [J].

CAZAUX, J .

MICROSCOPY MICROANALYSIS MICROSTRUCTURES, 1995, 6 (03) :345-362

[6] X-RAY PHOTOELECTRON SPECTROSCOPIC EVIDENCE FOR NOVEL SURFACE NITROGEN SPECIES IN IRRADIATED NANO3 [J].

COPPERTHWAITE, RG .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1980, (07) :320-321

[7] Laser-induced emission of neutral atoms and molecules from electron-irradiated NaNO3 [J].

Dickinson, JT ;

Shin, JJ ;

Langford, SC .

APPLIED SURFACE SCIENCE, 1996, 96-8 :326-331

[8] Interaction of wide band gap single crystals with 248 nm excimer laser radiation .4. Positive ion emission from MgO and NaNO3 [J].

Ermer, DR ;

Shin, JJ ;

Langford, SC ;

Hipps, KW ;

Dickinson, JT .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (11) :6452-6466

[9] NITROGEN 1S ELECTRON BINDING ENERGIES . CORRELATIONS WITH MOLECULAR ORBITAL CALCULATED NITROGEN CHARGES [J].

HENDRICKSON, DN ;

HOLLANDER, JM ;

JOLLY, WL .

INORGANIC CHEMISTRY, 1969, 8 (12) :2642-+

[10] Laser ablation of sodium nitrate: NO desorption following excitation of the pi-pi* band of the nitrate anion [J].

Hess, WP ;

German, KAH ;

Bradley, RA ;

McCarthy, MI .

APPLIED SURFACE SCIENCE, 1996, 96-8 :321-325

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