A Nanocolumnar Tantalum Oxide-Guided Mode Resonance Sensor for Volatile Organic Compounds

Srisuai, Nantarat; Chananonnawathorn, Chanunthorn; Seeleang, Boonrasri; Tantiwanichapan, Khwanchai; Lertvanithpol, Tossaporn; Sathukarn, Asmar; Pogfay, Tawee; Jaruwongrungsee, Kata; Horprathum, Mati; Boonruang, Sakoolkan

doi:10.1021/acsanm.1c02054

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…For this purpose, various sensing materials (metal oxide, 2D material, conductive polymer, and carbon, etc.) have been intensively explored to distinguish the signal for the specific VOC 25 , 26 . It is worth noting here that increasing the number of sensor arrays can contribute to more complex signal recognition and therefore improve accuracy in data interpretation.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of cross reaction in hybrid graphene oxide/tantalum dioxide guided mode resonance sensor for selective volatile organic compound

Tantiwanichapan

Jolivot

Jomphoak

et al. 2023

Sci Rep

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This paper experimentally demonstrates a crossed reaction of pure and hybrid graphene oxide (GO)/tantalum dioxide (TaO2) as a volatile organic compound (VOC) absorber in a guided mode resonance (GMR) sensing platform. The proposed GMR platform has a porous TaO2 film as the main guiding layer, allowing for more molecular adsorption and enhanced sensitivity. GO is applied on top as an additional VOC absorber to increase the selectivity. The hybrid sensing mechanism is introduced by varying the concentration of the GO aqueous solution. The experimental results show that the pure TaO2-GMR has a high tendency to adsorb most of the tested VOC molecules, with the resonance wavelength shifting accordingly to the physical properties of the VOCs (molecular weight, vapor pressure, etc). The largest signal appears in the large molecule such as toluene, and its sensitivity is gradually reduced in the hybrid sensors. At the optimum GO concentration of 3 mg/mL, the hybrid GO/TaO2 -GMR is more sensitive to methanol, while the pure GO sensor coated with GO at 5 mg/mL is highly selective to ammonia. The sensing mechanisms are verified using the distribution function theory (DFT) to simulate the molecular absorption, along with the measured functional groups measured on the sensor surface by the Fourier transform infrared spectroscopy (FTIR). The crossed reaction of these sensors is further analyzed by means of machine learning, specifically the principal component analysis (PCA) method and decision tree algorithm. The results show that this sensor is a promising candidate for quantitative and qualitative VOCs detection in sensor array platform.

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Section: Introductionmentioning

confidence: 99%

Demonstration of cross reaction in hybrid graphene oxide/tantalum dioxide guided mode resonance sensor for selective volatile organic compound

Tantiwanichapan

Jolivot

Jomphoak

et al. 2023

Sci Rep

Self Cite

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“…而物质的介电常数ε的虚部与导电率σ有关, 即 ) -1 . 将传感器的性能与基于波导共振模式气体传感器 [41] 进行对比(见补充材料表S3), 本工作无论是在半峰宽、灵敏度还是FOM值上都更加优异.…”

Section: 研究以往已经报道的基于Spr折射率的气体传感器的工作我们发现unclassified

SPR sensor functionalized with zinc oxide and its detection of gaseous formaldehyde

Liu¹

2023

Sci. Sin.-Phys. Mech. Astron.

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Hybrid Nanoarchitectronics of Tantalum Oxide‐Coated Gold Nanoparticles as Localized Surface Plasmon Resonance‐Based Sensors for Volatile Organic Compounds Detection

Changpradub,

Threrujirapapong,

Lertvanithphol

et al. 2024

Physica Status Solidi (a)

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Herein, a localized surface plasmon resonance‐based sensor for volatile organic compounds (VOCs) detection is developed. The sensors are fabricated as a hybrid nanostructure of gold nanoparticles coated with a tantalum oxide (TaO) thin film on a glass slide substrate through magnetron sputtering and thermal solid‐state dewetting techniques. The thickness of the TaO film varies between 10 and 70 nm. The optical properties of samples are characterized by UV‐Vis‐NIR spectrophotometry, while their morphologies are confirmed via transmission electron microscopy. The results show the shift of the minimum optical transmittance related to the TaO thickness. Electrical field simulations are performed to predict the sensitivity of the prepared samples for VOCs detection. In addition, the sensors are tested with different VOCs, including formaldehyde, isopropanol, acetone, and methanol, which show good potential for practical applications.

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A Nanocolumnar Tantalum Oxide-Guided Mode Resonance Sensor for Volatile Organic Compounds

Cited by 5 publications

References 34 publications

Demonstration of cross reaction in hybrid graphene oxide/tantalum dioxide guided mode resonance sensor for selective volatile organic compound

Demonstration of cross reaction in hybrid graphene oxide/tantalum dioxide guided mode resonance sensor for selective volatile organic compound

SPR sensor functionalized with zinc oxide and its detection of gaseous formaldehyde

Hybrid Nanoarchitectronics of Tantalum Oxide‐Coated Gold Nanoparticles as Localized Surface Plasmon Resonance‐Based Sensors for Volatile Organic Compounds Detection

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