TY - GEN
T1 - A Flexible, Ultrasensitive, and Highly Selective Bi-Functional Acetone and Ethanol Gas Sensor
AU - Rahman, Md Tawabur
AU - Bhuiyan, Md Saleh Akram
AU - Islam, Md Jahirul
AU - Reza, Khan Mamun
AU - Gurung, Ashim
AU - Qiao, Quinn
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - To date, most of the acetone and ethanol gas sensors suffer from common issues including low sensitivity, poor selectivity, and high energy consumption for practical applications. This work reports a flexible, ultrasensitive, and highly selective bi-functional acetone and ethanol gas sensor on a single chip based on molecular imprinted technology. A thin layer of graphene is deposited on a plastic substrate using spray coating between two gold electrodes. The gas sensing mechanism is based on the change in the electrical conductivity of graphene upon the adsorption and desorption of gas molecules. The sensors show linear response in the targeted range of 1-10 ppm of acetone and 130-210 ppm of ethanol. Additionally, the sensors exhibit a high sensitivity of 17.50/Ω ppm for acetone and 3.45/Ω ppm for ethanol. The limit of detection (LOD) was calculated to be 0.26 ppm and 78.76 ppm for acetone and ethanol, respectively. Moreover, the proposed sensors show high reproducibility and stability.
AB - To date, most of the acetone and ethanol gas sensors suffer from common issues including low sensitivity, poor selectivity, and high energy consumption for practical applications. This work reports a flexible, ultrasensitive, and highly selective bi-functional acetone and ethanol gas sensor on a single chip based on molecular imprinted technology. A thin layer of graphene is deposited on a plastic substrate using spray coating between two gold electrodes. The gas sensing mechanism is based on the change in the electrical conductivity of graphene upon the adsorption and desorption of gas molecules. The sensors show linear response in the targeted range of 1-10 ppm of acetone and 130-210 ppm of ethanol. Additionally, the sensors exhibit a high sensitivity of 17.50/Ω ppm for acetone and 3.45/Ω ppm for ethanol. The limit of detection (LOD) was calculated to be 0.26 ppm and 78.76 ppm for acetone and ethanol, respectively. Moreover, the proposed sensors show high reproducibility and stability.
KW - Graphene
KW - acetone gas sensor
KW - ethanol gas sensor
KW - molecular imprinted layer
KW - spray coating
UR - http://www.scopus.com/inward/record.url?scp=85153574850&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85153574850&partnerID=8YFLogxK
U2 - 10.1109/ICECE57408.2022.10088805
DO - 10.1109/ICECE57408.2022.10088805
M3 - Conference contribution
AN - SCOPUS:85153574850
T3 - 12th International Conference on Electrical and Computer Engineering, ICECE 2022
SP - 84
EP - 87
BT - 12th International Conference on Electrical and Computer Engineering, ICECE 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Conference on Electrical and Computer Engineering, ICECE 2022
Y2 - 21 December 2022 through 23 December 2022
ER -