Infrared surface plasmon resonance of AZO-Ag-AZO sandwich thin films

被引：37
|
作者：
Guske, Joshua T. [1 ]
Brown, Jeff [2 ]
Welsh, Alex [2 ]
Franzen, Stefan [1 ]
机构：
[1] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA
[2] Acree Technol Inc, Concord, CA 94520 USA
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 21期
基金：
美国国家科学基金会;
关键词：
INDIUM TIN OXIDE; ZNO/AG/ZNO MULTILAYER FILMS; LIGHT-EMITTING DEVICES; ZINC-OXIDE; OPTICAL-PROPERTIES; SILVER FILMS; ITO MULTILAYERS; WORK FUNCTION; GOLD; DEPOSITION;
D O I：
10.1364/OE.20.023215
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Near-infrared surface plasmon resonance (SPR) spectra were collected of thin multilayer films of aluminum-doped zinc oxide (AZO) / silver (Ag) / AZO on BK-7 glass in the Kretschmann configuration in air, with the silver layer thickness varying from 5 nm to 50 nm. The SPR results were interpreted by modeling the reflectance with a five-layer transfer-matrix method, with the aid of a simplex algorithm. The model indicated that the Ag plasma frequency was significantly higher than the bulk value, possibly due to Schottky effect charge transfer from the AZO to the Ag layer. Continuous silver films were made as thin as 10 nm, indicating an inhibition of metal island formation for Ag deposited on AZO. (c) 2012 Optical Society of America
引用
收藏
页码：23215 / 23226
页数：12
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