发明名称 |
Nonlinear gold nanocluster chemical vapor sensor |
摘要 |
The present invention is a chemiresistor for qualitative and quantitative analysis of chemical species that consists of a very thin film of particles, nanoclusters, deposited on an insulating substrate and contacted by electrodes. The particles have a metallic core, preferably spheroidal, that is less than 5 nm in diameter and surrounded by an monolayer ligand shell ranging in thickness from 0.4 nm to 2 nm. The Coulomb blockade effects upon which the invention operates result in nonlinear current-voltage characteristics which dramatically improves sensitivity with much lower power dissipation. One property of the ligand shell is that its chemical composition can be chosen to be especially receptive to a particular chemical vapor.
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申请公布号 |
US2004029288(A1) |
申请公布日期 |
2004.02.12 |
申请号 |
US20020145617 |
申请日期 |
2002.08.09 |
申请人 |
SNOW ARTHUR;ANCONA MARIO;FOOS EDWARD |
发明人 |
SNOW ARTHUR;ANCONA MARIO;FOOS EDWARD |
分类号 |
G01N27/04;(IPC1-7):G01N33/00;G01N27/02 |
主分类号 |
G01N27/04 |
代理机构 |
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