INFRARED REFLECTANCE SPECTRA OF SB-DOPED SNO2 CERAMICS

被引：7
作者：
RASTOMJEE, CS
COX, PA
EGDELL, RG
KEMP, JP
FLAVELL, WR
机构：
[1] UNIV OXFORD, S PARKS RD, OXFORD OX1 3QR, ENGLAND
[2] UNIV MANCHESTER, INST SCI & TECHNOL, DEPT CHEM, MANCHESTER M60 1QD, LANCS, ENGLAND
来源：
JOURNAL OF MATERIALS CHEMISTRY | 1991年 / 1卷 / 03期
关键词：
ANTIMONY-DOPED TIN OXIDE CERAMIC; INFRARED REFLECTION SPECTROSCOPY; DEPLETION LAYER;
D O I：
10.1039/jm9910100451
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：
Infrared specular reflectance spectra of Sn(1-x)Sb(x)O2 ceramics have been measured over a range of bulk doping levels extending up to x = 0.03. At low doping levels conduction electrons screen out coupling of the infrared radiation to bulk phonon modes in a way expected from a model in which reflectivity is calculated from the bulk dielectric function. However, at higher doping levels a reflectivity minimum develops at ca. 800 cm-1. This is interpreted in terms of a model where a surface layer with low carrier concentration sits on top of an undepleted bulk.
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页码：451 / 455
页数：5
相关论文
共 11 条
[1]  
[Anonymous], 2007, INTRO SOLID STATE PH
[2]   FREE-ELECTRON BEHAVIOR OF CARRIERS IN ANTIMONY-DOPED TIN(IV) OXIDE - A STUDY BY ELECTRON-SPECTROSCOPY [J].
COX, PA ;
EGDELL, RG ;
HARDING, C ;
ORCHARD, AF ;
PATTERSON, WR ;
TAVENER, PJ .
SOLID STATE COMMUNICATIONS, 1982, 44 (06) :837-839
[3]   OBSERVATION OF SURFACE OPTICAL PHONONS ON SNO2(110) [J].
COX, PA ;
EGDELL, RG ;
FLAVELL, WR ;
HELBIG, R .
VACUUM, 1983, 33 (10-1) :835-838
[4]   SURFACE-PROPERTIES OF ANTIMONY DOPED TIN(IV) OXIDE - A STUDY BY ELECTRON-SPECTROSCOPY [J].
COX, PA ;
EGDELL, RG ;
HARDING, C ;
PATTERSON, WR ;
TAVENER, PJ .
SURFACE SCIENCE, 1982, 123 (2-3) :179-203
[5]   INFRARED ANISOTROPY OF LA1.85SR0.15CUO4-Y [J].
DOLL, GL ;
STEINBECK, J ;
DRESSELHAUS, G ;
DRESSELHAUS, MS .
PHYSICAL REVIEW B, 1987, 36 (16) :8884-8887
[6]   ANTIMONY-DOPED TIN(IV) OXIDE - SURFACE-COMPOSITION AND ELECTRONIC-STRUCTURE [J].
EGDELL, RG ;
FLAVELL, WR ;
TAVENER, P .
JOURNAL OF SOLID STATE CHEMISTRY, 1984, 51 (03) :345-354
[7]  
Flores F., 1979, INTRO THEORY SOLID S
[8]  
JARZEBSKI ZM, 1976, J ELECTROCHEM SOC, V123, pC199, DOI [10.1149/1.2133090, 10.1149/1.2132647]
[9]   INFRARED REFLECTANCE SPECTRA OF THE SODIUM TUNGSTEN BRONZES - EVIDENCE FOR A SURFACE DEPLETION LAYER [J].
KEMP, JP ;
COX, PA ;
EGDELL, RG ;
KANG, K .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 :SB123-SB126
[10]   TIN DIOXIDE GAS SENSORS .1. ASPECTS OF THE SURFACE-CHEMISTRY REVEALED BY ELECTRICAL CONDUCTANCE VARIATIONS [J].
MCALEER, JF ;
MOSELEY, PT ;
NORRIS, JOW ;
WILLIAMS, DE .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :1323-1346
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