Quaternary Holey Carbon Nanohorns/SnO2/ZnO/PVP Nano-Hybrid as Sensing Element for Resistive-Type Humidity Sensor
Abstract
:1. Introduction
2. Materials and Methods
Materials
3. Results and Discussions
3.1. Surface Topography
3.2. Surface Composition
3.3. X-ray Diffraction Results
3.4. Raman Spectroscopy
3.5. RH Monitoring Capability of the Quaternary Nanocomposite
3.6. Analysis of Sensing Mechanism
4. Conclusions
5. Patents
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sensing Layer | Relative Sensitivity |
---|---|
CNHox [48] | 0.013–0.021 |
CNHox-PVP 1/1 [49] | 0.020–0.058 |
CNHox-PVP 2/1 [49] | 0.017–0.025 |
Graphene-PVP inkjet printed [50] | 0.21–0.30 |
GO-CNHox–PVP 1/1/1 [51] | 0.150–0.200 |
GO-CNHox–PVP 1/2/1 [51] | 0.063–0.070 |
GO-CNHox–PVP 1/3/1 [51] | 0.043–0.051 |
CNHox/GO/SnO2/PVP 0.75/0.75/1/1 [76] | 0.548–0.770 |
CNHox/GO/SnO2/PVP 1/1/1/1 [76] | 0.798–0.980 |
CNHox/SnO2/ZnO/PVP = 1.5/1/1/1-present study | 0.320–0.489 |
CNHox/SnO2/ZnO/PVP = 3/1/1/1-present study | 0.105–0.242 |
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Serban, B.-C.; Cobianu, C.; Buiu, O.; Bumbac, M.; Dumbravescu, N.; Avramescu, V.; Nicolescu, C.M.; Brezeanu, M.; Radulescu, C.; Craciun, G.; et al. Quaternary Holey Carbon Nanohorns/SnO2/ZnO/PVP Nano-Hybrid as Sensing Element for Resistive-Type Humidity Sensor. Coatings 2021, 11, 1307. https://doi.org/10.3390/coatings11111307
Serban B-C, Cobianu C, Buiu O, Bumbac M, Dumbravescu N, Avramescu V, Nicolescu CM, Brezeanu M, Radulescu C, Craciun G, et al. Quaternary Holey Carbon Nanohorns/SnO2/ZnO/PVP Nano-Hybrid as Sensing Element for Resistive-Type Humidity Sensor. Coatings. 2021; 11(11):1307. https://doi.org/10.3390/coatings11111307
Chicago/Turabian StyleSerban, Bogdan-Catalin, Cornel Cobianu, Octavian Buiu, Marius Bumbac, Niculae Dumbravescu, Viorel Avramescu, Cristina Mihaela Nicolescu, Mihai Brezeanu, Cristiana Radulescu, Gabriel Craciun, and et al. 2021. "Quaternary Holey Carbon Nanohorns/SnO2/ZnO/PVP Nano-Hybrid as Sensing Element for Resistive-Type Humidity Sensor" Coatings 11, no. 11: 1307. https://doi.org/10.3390/coatings11111307