TY - JOUR
T1 - Room temperature CO2 sensing using Au-decorated ZnO nanorods deposited on an optical fiber
AU - Álvarez-Ramos, Mario Enrique
AU - Necochea-Chamorro, Jorge Isaac
AU - Carrillo-Torres, Roberto Carlos
AU - Sánchez-Zeferino, Raúl
N1 - Publisher Copyright:
© 2020
PY - 2020/12
Y1 - 2020/12
N2 - Zinc oxide nanorods decorated with gold nanoparticles were deposited on an optical fiber and were used for carbon dioxide gas detection at room temperature. This optical gas sensor is based on the changes in the intensity of transmitted light due to the interaction of gas molecules with zinc oxide surface. Zinc oxide nanorods were prepared by ultrasonic method and were decorated with spheroidal 20 nm gold nanoparticles. Sensing experiments were carried out using two different wavelengths. The sensor can respond to a CO2 atmosphere and recover to its original state once the gas is removed, showing a better response when red light is used. Moreover, it responds almost linearly with concentration until 2000 sccm. The incorporation of gold nanoparticles greatly reduces the sensitivity of the sensor and increases its recovery time. Preliminary results demonstrate that the sensor could also be used to sense vapors of common solvents.
AB - Zinc oxide nanorods decorated with gold nanoparticles were deposited on an optical fiber and were used for carbon dioxide gas detection at room temperature. This optical gas sensor is based on the changes in the intensity of transmitted light due to the interaction of gas molecules with zinc oxide surface. Zinc oxide nanorods were prepared by ultrasonic method and were decorated with spheroidal 20 nm gold nanoparticles. Sensing experiments were carried out using two different wavelengths. The sensor can respond to a CO2 atmosphere and recover to its original state once the gas is removed, showing a better response when red light is used. Moreover, it responds almost linearly with concentration until 2000 sccm. The incorporation of gold nanoparticles greatly reduces the sensitivity of the sensor and increases its recovery time. Preliminary results demonstrate that the sensor could also be used to sense vapors of common solvents.
KW - Carbon dioxide
KW - Gold nanoparticles
KW - Optical fiber sensor
KW - Zinc oxide nanorods
UR - http://www.scopus.com/inward/record.url?scp=85089847319&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2020.114720
DO - 10.1016/j.mseb.2020.114720
M3 - Article
AN - SCOPUS:85089847319
SN - 0921-5107
VL - 262
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
M1 - 114720
ER -