Abstract
This paper reports the use of hematin Langmuir-Blodgett (LB) films to detect carbon monoxide gas at the room temperature, based on changes in the optical absorption of the films. Hematin LB films were deposited on quartz and glass substrates. For the film deposited on quartz substrate, an increase in the absorption spectra of the film was achieved by exposing the film to carbon monoxide gas. The absorption spectra of the film recover back when the exposing gas was cut off. While for the film deposited on glass substrate, there is no significant change in the spectra due to this gas. Atomic force microscope images were taken for the hematin LB films both on glass and quartz substrates. Both images show different features indicating that the optical respond of the films to the gas depends on the arrangement of molecules on the substrate.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Pages | 77-81 |
| Number of pages | 5 |
| Volume | 3175 |
| DOIs | |
| Publication status | Published - 1998 |
| Event | 3rd International Conference on Thin Film Physics and Applications - Shanghai, China Duration: 15 Apr 1997 → 15 Apr 1997 |
Other
| Other | 3rd International Conference on Thin Film Physics and Applications |
|---|---|
| Country | China |
| City | Shanghai |
| Period | 15/4/97 → 15/4/97 |
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Keywords
- Absorption spectra
- Atomic force microscope
- Carbon monoxide
- Gas sensor
- Hematin
- Langmuir-Blodgett films
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Optical gas sensing of hematin Langmuir-Blodgett films. / Mat Salleh, Muhamad; Belal, A. S.; Yahaya, Muhammad.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3175 1998. p. 77-81.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Optical gas sensing of hematin Langmuir-Blodgett films
AU - Mat Salleh, Muhamad
AU - Belal, A. S.
AU - Yahaya, Muhammad
PY - 1998
Y1 - 1998
N2 - This paper reports the use of hematin Langmuir-Blodgett (LB) films to detect carbon monoxide gas at the room temperature, based on changes in the optical absorption of the films. Hematin LB films were deposited on quartz and glass substrates. For the film deposited on quartz substrate, an increase in the absorption spectra of the film was achieved by exposing the film to carbon monoxide gas. The absorption spectra of the film recover back when the exposing gas was cut off. While for the film deposited on glass substrate, there is no significant change in the spectra due to this gas. Atomic force microscope images were taken for the hematin LB films both on glass and quartz substrates. Both images show different features indicating that the optical respond of the films to the gas depends on the arrangement of molecules on the substrate.
AB - This paper reports the use of hematin Langmuir-Blodgett (LB) films to detect carbon monoxide gas at the room temperature, based on changes in the optical absorption of the films. Hematin LB films were deposited on quartz and glass substrates. For the film deposited on quartz substrate, an increase in the absorption spectra of the film was achieved by exposing the film to carbon monoxide gas. The absorption spectra of the film recover back when the exposing gas was cut off. While for the film deposited on glass substrate, there is no significant change in the spectra due to this gas. Atomic force microscope images were taken for the hematin LB films both on glass and quartz substrates. Both images show different features indicating that the optical respond of the films to the gas depends on the arrangement of molecules on the substrate.
KW - Absorption spectra
KW - Atomic force microscope
KW - Carbon monoxide
KW - Gas sensor
KW - Hematin
KW - Langmuir-Blodgett films
UR - http://www.scopus.com/inward/record.url?scp=57649097585&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57649097585&partnerID=8YFLogxK
U2 - 10.1117/12.300641
DO - 10.1117/12.300641
M3 - Conference contribution
VL - 3175
SP - 77
EP - 81
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -