| 학회 |
한국공업화학회 |
| 학술대회 |
2005년 가을 (10/28 ~ 10/29, 건국대학교) |
| 권호 |
9권 2호 |
| 발표분야 |
정밀화학 |
| 제목 |
TNT Vapor Sensors Based on Silicon Quantum Dots |
| 초록 |
Synthesis and characterization of alkyl-capped nanocrystalline silicon (R-n-Si) have been achieved from the reaction of silicontetrachloride with magnesiumsilicide. Surface of silicon nanocrystal has been derivatized with various alkyl groups (R=methyl, n-butyl, etc.). Silicon nanoparticles have been also obtained by the sonication of luminescent porous silicon. Former exhibited an emission band at 360 nm, but latter exhibited an emission band at 680 nm. They both have been used for detecting the vapors of explosives. The detection method involves the measurement of quenching of photoluminescence of silicon nanoparticles by the analyte. Photoluminescence quenching of silicon nanoparticles in toluene solutions with nitrobenzene, DNT, TNT, and picric acid were measured. Sensitivity of silicon nanoparticles for detecting explosive vapor will be discussed. |
| 저자 |
손홍래, 송진우, 장승현, 권형준, 김범석, Arun Kummar Sharma, 조성동
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| 소속 |
조선대 |
| 키워드 |
Silicon; Nanoparticles; Sensors
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| E-Mail |
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