期刊
ANALYTICAL CHEMISTRY
卷 86, 期 22, 页码 11312-11318出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac5030478
关键词
-
资金
- National 863 Program [2011AA050509]
- National Natural Science Foundation of China [61106039, 51272084, 61306078, 61225018]
- National Postdoctoral Foundation [2011049015]
- Jilin Province Key Fund [20140204079GX]
- Shandong Natural Science Foundation [ZR2012FZ007]
- Hong Kong Scholar Program [XJ2012022]
- State Key Laboratory on Integrated Optoelectronics [IOSKL2012ZZ12]
- NSF [CHE-1338346]
- 3M Faculty Award
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1338346] Funding Source: National Science Foundation
Multigas sensing is highly demanded in the fields of environmental monitoring, industrial production, and coal mine security. Three near-infrared emission wavelengths from PbSe quantum dots (QDs) were used to analyze the concentration of three gases simultaneously through direct absorption spectroscopy, including acetylene (C2H2), methane (CH4), and ammonia (NH3). The corresponding lower detection limits for the three gases were 20, 100, and 20 ppm, respectively, with an accuracy of 2%. This study demonstrates that QDs with tunable emissions have great potential for simultaneous and uninterfered multiplex gas analysis and detection due to the advantages of the easy tunability of multiplex emitting wavelengths from QDs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据