Theoretical Research on Ellipsoidal Structure Methane Gas Detection Based on Near Infrared Light Sources of PbSe Quantum Dots
Joint Authors
Xing, Xiaoxue
Lei, Yanmin
Shang, Weiwei
Du, Limin
Guo, Pan
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-12
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
To improve the precision and sensitivity of the detection in near infrared gas detection system, the selection of light source and design of gas chamber structure are two key links.
In this paper, the near infrared (NIR) light sources fabricated with PbSe quantum dots (QDs) and a new gas cell structure using an ellipsoid reflector were designed to test the concentration of methane (CH4).
The double wavelengths differential detection method was used in the paper.
The signal wavelength is 1.665 μm from the NIR QD-based light source with 5.1 nm PbSe QDs.
The reference wavelength is 1.943 μm from the NIR QD-based light source with 6.1 nm PbSe QDs.
The experimental results show that the differential gain signal could be enhanced 80 times when the major axis, the focus, and the open length of the ellipsoid reflector are 4.18 cm, 3.98 cm, and 0.36 cm, respectively.
The structure will be convenient for the signal amplifying, AD converting, and other process in the latter circuits, and therefore both the detection sensitivity and precision can be improved.
American Psychological Association (APA)
Xing, Xiaoxue& Lei, Yanmin& Shang, Weiwei& Du, Limin& Guo, Pan. 2017. Theoretical Research on Ellipsoidal Structure Methane Gas Detection Based on Near Infrared Light Sources of PbSe Quantum Dots. Journal of Nanomaterials،Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1183377
Modern Language Association (MLA)
Xing, Xiaoxue…[et al.]. Theoretical Research on Ellipsoidal Structure Methane Gas Detection Based on Near Infrared Light Sources of PbSe Quantum Dots. Journal of Nanomaterials No. 2017 (2017), pp.1-6.
https://search.emarefa.net/detail/BIM-1183377
American Medical Association (AMA)
Xing, Xiaoxue& Lei, Yanmin& Shang, Weiwei& Du, Limin& Guo, Pan. Theoretical Research on Ellipsoidal Structure Methane Gas Detection Based on Near Infrared Light Sources of PbSe Quantum Dots. Journal of Nanomaterials. 2017. Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1183377
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183377