Applied Physics Letters
Detection and analysis of volatile organic compounds’ (VOCs) biomarkers lead to improvement in healthcare diagnosis and other applications such as chemical threat detection and food quality control. Here, we report on tri-molybdenum phosphide (Mo3P) and multi- walled carbon nanotube (MWCNT) junction-based vapor quantum resistive sensors (vQRSs), which exhibit more than one order of magni- tude higher sensitivity and superior selectivity for biomarkers in comparison to pristine MWCNT junctions based vQRSs. Transmission electron microscope/scanning tunneling electron microscope with energy dispersive x-ray spectroscopy, x-ray diffraction, and x-ray photo- electron spectroscopy studies reveal the crystallinity and the presence of Mo and P elements in the network. The presence of Mo3P clearly enhanced the performance of vQRS as evidenced in sensitivity and selectivity studies. The vQRSs are stable over extended periods of time and are reproducible, making them a potential candidate for sensing related applications.
Original Publication Citation
Baleeswaraiah, M., Malali, P., Breena, D. ... Kumar, K., Karoui, A., Kumar B. (2021) Tri-molybdenum phosphide (Mo3P) and multi-walled carbon nanotube junctions for volatile organic compounds (VOCs) detection. Applied Physics Letters, 119(11), 1-7, Article 113101. https://doi.org/10.1063/5.0059378
Muchharla, Baleeswaraiah; Malali, Praveen; Daniel, Brenna; Kondori, Alireza; Asadi, Mohammad; Cao, Wei; Elsayed-Ali, Hani E.; Castro, Mickaël; Elahi, Mehran; Adedeji, Adetayo; Sadasivuni, Kishor Kumar; Mauya, Muni Raj; Kumar, Kapil; Karoui, Abdennaceur; and Kumar, Bijandra, "Tri-Molybdenum Phosphide (Mo3P) and Multi-Walled Carbon Nanotube Junctions for Volatile Organic Compounds (VOCs) Detection" (2021). Electrical & Computer Engineering Faculty Publications. 292.
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