TY - JOUR
T1 - Low-energy consumption CuSCN-based ultra-low-ppb level ozone sensor, operating at room temperature
AU - Gagaoudakis, Emmanouil
AU - Kampitakis, Viktor
AU - Moschogiannaki, Marilena
AU - Sfakianou, Angeliki
AU - Anthopoulos, Thomas D.
AU - Tsetseris, Leonidas
AU - Kiriakidis, George
AU - Deligeorgis, George
AU - Iacovella, Fabrice
AU - Binas, Vasileios
N1 - KAUST Repository Item: Exported on 2022-03-10
Acknowledgements: The authors acknowledge support of this work by the project “National Research Infrastructure on Nanotechnology, Advanced Materials and Micro/Nanoelectronics” (MIS 5002772) which is implemented under the “Action for the Strategic Development on the Research and Technological Sector”, funded by the Operational Programme “Competitiveness, Entrepreneurship and Innovation” (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund). The research work was also supported by the Hellenic Foundation for Research and Innovation (HFRI) under the HFRI PhD Fellowship grant (Fellowship Number: 1477).
PY - 2022/2/24
Y1 - 2022/2/24
N2 - Ozone (O3) is one of the main indoor as well as environmental air pollutant, thus its detection is of great importance. As a result, plenty of materials have been tested as O3 gas sensing elements, over the last fifty years. In this work, the gas sensing performance of Copper (I) Thiocyanate (CuSCN) powder against O3, is presented. The structure of CuSCN powder was polycrystalline as revealed by the X-Ray Diffraction technique, while by employing optical absorption measurement the direct and indirect energy band gaps were calculated and found to be 3.72 eV and 3.48 eV, respectively. CuSCN powder was tested against O3 at different concentrations, showing a low detection limit of 15 ppb with a response of 1.06, at room temperature (25 °C), applying a very low input voltage of 0.1 V. Moreover, the corresponding response and recovery times were 137.4 s and 111 s, respectively, while it can successfully distinguish the different ozone concentrations in less than 20 s. The above-mentioned values make CuSCN a possible candidate material for ultra-low O3 concentration detection, at room temperature, with low-energy consumption.
AB - Ozone (O3) is one of the main indoor as well as environmental air pollutant, thus its detection is of great importance. As a result, plenty of materials have been tested as O3 gas sensing elements, over the last fifty years. In this work, the gas sensing performance of Copper (I) Thiocyanate (CuSCN) powder against O3, is presented. The structure of CuSCN powder was polycrystalline as revealed by the X-Ray Diffraction technique, while by employing optical absorption measurement the direct and indirect energy band gaps were calculated and found to be 3.72 eV and 3.48 eV, respectively. CuSCN powder was tested against O3 at different concentrations, showing a low detection limit of 15 ppb with a response of 1.06, at room temperature (25 °C), applying a very low input voltage of 0.1 V. Moreover, the corresponding response and recovery times were 137.4 s and 111 s, respectively, while it can successfully distinguish the different ozone concentrations in less than 20 s. The above-mentioned values make CuSCN a possible candidate material for ultra-low O3 concentration detection, at room temperature, with low-energy consumption.
UR - http://hdl.handle.net/10754/675753
UR - https://linkinghub.elsevier.com/retrieve/pii/S0924424722001005
UR - http://www.scopus.com/inward/record.url?scp=85125445722&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2022.113462
DO - 10.1016/j.sna.2022.113462
M3 - Article
SN - 0924-4247
VL - 338
SP - 113462
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
ER -
