Thermally promoted addition of undecylenic acid on thermally hydrocarbonized porous silicon optical reflectors

被引：19
作者：
Jalkanen, Tero [1 ,2 ]
Makila, Ermei [2 ]
Sakka, Tetsuo [1 ]
Salonen, Jarno [2 ,3 ]
Ogata, Yukio H. [1 ]
机构：
[1] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan
[2] Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland
[3] Univ Turku, Ctr Mat & Surfaces, FI-20014 Turku, Finland
来源：
NANOSCALE RESEARCH LETTERS | 2012年 / 7卷
关键词：
Porous silicon; Interference filter; Optical microcavity; Chemical stability; SURFACE; MICROCAVITIES; FABRICATION; BIOSENSOR;
D O I：
10.1186/1556-276X-7-311
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Thermally promoted addition of undecylenic acid is studied as a method for modifying porous silicon optical reflectors that have been pre-treated with thermal hydrocarbonization. Successful derivatization of undecylenic acid is demonstrated and confirmed with Fourier transform infrared and X-ray photoelectron spectroscopies. The results indicate that the hydrocarbonization pre-treatment considerably improves stability against oxidation and chemical dissolution in basic environments. The two-step treatment also does not cause an appreciable change on sample reflectance spectra, which enables the use of the functionalized structures in optical sensing applications.
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页数：6
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