ArticleMicrosystems & nanoengineering2020
Voltage-controlled NiO/ZnO p-n heterojunction diode: a new approach towards selective VOC sensing.
Article in Microsystems & nanoengineering, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- A comprehensive review of post-harvest agricultural product deterioration signature volatile organic compounds.Food chemistry: X · 2025Review
- Highly Sensitive and Selective Toluene Gas Sensors Based on ZnO Nanoflowers Decorated with Bimetallic AuPt.Molecules (Basel, Switzerland) · 2024Article
- Investigation of sorptive interactions between volatile organic compounds and supramolecules at dynamic oscillation using bulk acoustic wave resonator virtual sensor arrays.Microsystems & nanoengineering · 2024Article
- Various Applications of ZnO Thin Films Obtained by Chemical Routes in the Last Decade.Molecules (Basel, Switzerland) · 2023Review
- Highly Sensitive and Selective Gas Sensors Based on NiO/MnOAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- ZnO/NiO heterostructure-based microsensors used in formaldehyde detection at room temperature: Influence of the sensor operating voltage.Journal of materials science. Materials in electronics · 2022Article
- Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing.Sensors (Basel, Switzerland) · 2021Review
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Authors and funding
5 authors.
Funding
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Abstract
Metal oxide resistive gas sensors suffer from poor selectivity that restricts their practical applicability. Conventional sensor arrays are used to improve selectivity which increased the system complexity. Here, we have proposed a novel NiO/ZnO-based p-n junction single-diode device for selective sensing of several volatile organic compounds (VOCs) simultaneously by tuning bias voltage. The operating voltage was varied between 3 and 5 volts to achieve selective sensing of 2-propanol (19.1 times for 95 ppm with response and recovery times of 70 s and 55 s respectively' at 3 volts), toluene (20.1 times for 95 ppm with response and recovery times of 100 s and 60 s respectively, at 4 volts), and formaldehyde (11.2 times for 95 ppm with response and recovery times of 88 s and 54 s respectively, at 5 volts). A probable mechanism of the tunable selectivity with operating bias voltage due to increase in surface carriers with increasing voltage was hence put forth. Thus, this device may play an important role to develop future selective multiple VOC sensor thereby replacing standard sensor arrays.
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