Standoff detection of chemicals using porous silicon "smart dust" particles

被引：0
|
作者：
Schmedake, TA [1 ]
Cunin, F [1 ]
Link, JR [1 ]
Sailor, MJ [1 ]
机构：
[1] Univ Calif San Diego, Dept Chem & Biochem, Dept 0358, San Diego, CA 92120 USA
来源：
ADVANCED MATERIALS | 2002年 / 14卷 / 18期
关键词：
D O I：
10.1002/1521-4095(20020916)14:18<1270::AID-ADMA1270>3.0.CO;2-R
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Smart dust-small particles of optically encoded microporous Si-can detect organic vapors by measurement of the intensity of reflected light using a laser probe and a detector stationed 20 m away (see Figure and inside front cover). The porous particles absorb condensable vapors, producing a change in refractive index and consequently a quantitative change in optical reflectivity at the wavelength of the laser.
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页码：1270 / +
页数：4
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