High-performance acetone detection via one-dimensional sulfur-doped ZnO nanostructures
Zayas-Bazan, P. G.; Galdamez-Martinez, Andres; Lugo-Ruiz, Diego; Rodriguez, Ivan R.; Castellanos, Kevin Rueda; Ramos, Carlos; Santana, Guillermo; Karthik, Tangirala V. K.; Dutt, Ateet (2025-03-03)
Avaa tiedosto
Sisältö avataan julkiseksi: 03.03.2027
Elsevier
03.03.2025
Zayas-Bazán, P. G., Galdámez-Martínez, A., Lugo-Ruiz, D., Rodríguez, I. R., Castellanos, K. R., Ramos, C., Santana, G., Karthik, T. V., & Dutt, A. (2025). High-performance acetone detection via one-dimensional sulfur-doped ZnO nanostructures. Sensors and Actuators A: Physical, 387, 116365. https://doi.org/10.1016/j.sna.2025.116365
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2025. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2025. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202512027043
https://urn.fi/URN:NBN:fi:oulu-202512027043
Tiivistelmä
Abstract
This study successfully synthesizes one-dimensional sulfur-doped ZnO nanostructures via vapor-phase growth. Sulfur incorporation was confirmed through shifts in X-ray diffraction patterns and photoluminescence spectra. X-ray photoelectron spectroscopy (XPS) analysis revealed increased oxygen vacancies—a critical factor for enhancing sensor reactivity. The sulfur-doped ZnO nanostructures significantly improved gas sensing performance, achieving a response of approximately 85 % due to the increase in surface oxygen vacancies and active adsorption sites. Although sulfur doping slightly reduced inter-grain conductivity, the sensors exhibited remarkable selectivity for acetone over other gases. These findings underscore the potential of sulfur-doped ZnO nanostructures for acetone detection, addressing a critical gap in current sensor research and paving the way for developing high-performance gas sensors for practical applications.
This study successfully synthesizes one-dimensional sulfur-doped ZnO nanostructures via vapor-phase growth. Sulfur incorporation was confirmed through shifts in X-ray diffraction patterns and photoluminescence spectra. X-ray photoelectron spectroscopy (XPS) analysis revealed increased oxygen vacancies—a critical factor for enhancing sensor reactivity. The sulfur-doped ZnO nanostructures significantly improved gas sensing performance, achieving a response of approximately 85 % due to the increase in surface oxygen vacancies and active adsorption sites. Although sulfur doping slightly reduced inter-grain conductivity, the sensors exhibited remarkable selectivity for acetone over other gases. These findings underscore the potential of sulfur-doped ZnO nanostructures for acetone detection, addressing a critical gap in current sensor research and paving the way for developing high-performance gas sensors for practical applications.
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