Surface plasmon resonance sensor based on gold-graphene quantum dots thin film as a sensing nanomatrix for phenol detection

Hashim, Hazwani Suhaila; Fen, Yap Wing; Omar, Nur Alia Sheh; Daniyal, ‬Wan Mohd Ebtisyam Mustaqim Mohd; Fauzi, Nurul Illya Muhamad; Abdullah, Jaafar; Mahdi, Mohd Adzir

doi:10.1016/j.optlastec.2023.109816

Cited by 12 publications

(3 citation statements)

References 94 publications

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“…Graphene is the first two-dimensional carbon nanomaterial to be discovered and is viewed as the basic building block of various carbon materials. Graphene has been the subject of extensive research in recent years due to its outstanding optical, electrical, and mechanical properties that surpass those of other materials. , In past studies, the graphene structure has been patterned on a large scale by solution processing methods such as spin-coating and ball-milling which are applied in high-sensitivity sensors, − actuators, − and energy devices. − …”

Section: Introductionmentioning

confidence: 99%

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Kang,

Wang,

et al. 2024

Langmuir

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Graphene is a two-dimensional honeycomb-like nanomaterial generated by carbon atoms in sp 2 hybridized orbitals to form a hexagonal lattice structure with excellent electrical, optical, and mechanical properties. The solution process method has been widely used to realize large-area patterned graphene structures for highperformance devices. In the method, graphene usually needs to be dispersed in solution, and the π−π bonding gravitational interactions between graphene sheets would lead to uncontrollable structures in solution and difficulty in obtaining high performance. In this work, a patterned graphene oxide (GO) structure with controllable thickness and layer spacing was realized by a direct-write printed slippery surface, which was used as a slippery limited template. After reducing GO into reduced graphene oxide (rGO), a flexible electric pattern with a conductivity of up to 6.425 × 10 3 S/m was realized. Furthermore, the patterned rGO structure was transferred on polydimethylsiloxane (PDMS), which could generate less than a 5% change in resistance after 10,000 consecutive bends, and an anisotropic expansion based on rGO and PDMS materials under electro-thermal coupling. The patterned rGO structures could meet the performance requirements of highly sensitive and complex deformation applications as flexible electric actuators. This study provides great research significance and application value for patterning high-quality graphene structures and realizing highperformance flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Kang,

Wang,

et al. 2024

Langmuir

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“…The improvement of the sensor performance is limited due to the high ohmic loss of the precious metals and the high radiation of the surface plasma, leading to excessive energy loss from the fiber core, and the lack of an obvious pattern to enhance the performance of gold (silver)-based SPR sensors in recent years [9,10]. Therefore many researchers have been exploring metals with lower ohmic losses as thin film materials to enhance the performance of SPR sensors [11]. In general, the alternative plasmonic materials should have good optical properties that enable the SPR effect, i.e., matching the wavelength and refractive index of the incident light, allowing surface plasmon resonance to be generated.…”

Section: Introductionmentioning

confidence: 99%

Sodium-based no-core fiber surface plasmon resonance sensor with high sensitivity and narrow FWHM

Zhang,

Li,

Yin

2024

Phys. Scr.

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Since fiber-optic sensors using noble metal-excited surface plasmon resonance (SPR) effects have encountered bottlenecks in improving performance, we propose a fiber-optic sensor using sodium in combination with a no-core fiber (NCF) to measure both refractive index (RI) and temperature. We deposited sodium thin films on the surface of NCF optical fibers and protected them with polymethyl methacrylate (PMMA) or polydimethylsiloxane (PDMS) for RI sensing or temperature sensing. We performed computational simulations and performance analyses of the sensors using the finite element method, and the results show that the sodium-based SPR sensors have higher sensitivity, wider detection range, and narrower full width at half-maximum (FWHM) than the noble metal SPR sensors. SPR sensors with different sodium film thicknesses have different sensing characteristics, so we can get optical fiber sensors with more flexible transmission characteristics, which helps us arrange sensors more conveniently in practical applications. The simulation and numerical results show that when the sensor is used to measure RI, the average sensitivity of the sensor can reach 7977 nm/RIU, the maximum sensitivity can reach 23100 nm/RIU, the narrowest FWHM is 14.23 nm, and the maximum figure of merit (FOM) is 719.42 RIU-1 under different thicknesses of sodium film. The corresponding RI ranges from 1.32 to 1.41. When the temperature measurement range is 0℃~100℃, the average sensitivity can reach 7.86 nm/℃, the maximum temperature sensitivity can reach 21.1 nm/℃, and the narrowest FWHM is 17.84 nm. In summary, the proposed sodium-based SPR sensor has flexible and high-performance sensing characteristics, and our research work provides more powerful theoretical support for the application of sodium-based plasma devices.

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“…[39][40][41] For graphene and MoS 2 , their electronic and optical properties have benefits in sensor applications. 42,43 Simple methods such as dip coating and spin coating can be used to obtain 2D material layers as done by Hashim et al and Kaushik et al 44,45 Penetration depth of the sensors.-Our proposed sensor is designed to be suitable for detecting micro-sized analytes. Therefore, we calculate the electric field profile and determine the penetration depth of each LMR sensor chip.…”

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confidence: 99%

Performance Comparison of Lossy Mode Resonance Refractive Index Sensors on Structures Based on Graphene and MoS₂

Taufiq Nurrohman,

Chiu

2024

ECS J. Solid State Sci. Technol.

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2D materials such as graphene and MoS2 have a crucial role in improving the performance of optical sensors. In this work, we investigated a lossy mode resonance (LMR) sensor composed of MgF2 and 2D materials. The transfer matrix method has been chosen to determine the reflectance curve of the sensor with different thicknesses of MgF2 and 2D materials. The computational results show that the LMR sensor generated with s-polarized light has a better resonance. The existence of exciton in MoS2 also has a very dominant contribution to the resulting resonance. There are two absorption peaks around the wavelengths of 610 and 652 nm which are caused by the presence of excitons A and B in MoS2. When graphene- and MoS2-based chips are compared, MoS2-based chips display a wider detection range with better signal stability. A sensitivity of 70.37°/RIU can be achieved with MgF2 (200 nm)/MoS2 (5 layers). In addition, the proposed LMR sensor has a penetration depth that is two times higher than conventional SPR sensors, making it possible to replace SPR sensors which rely heavily on gold as their transducer.

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Surface plasmon resonance sensor based on gold-graphene quantum dots thin film as a sensing nanomatrix for phenol detection

Cited by 12 publications

References 94 publications

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Sodium-based no-core fiber surface plasmon resonance sensor with high sensitivity and narrow FWHM

Performance Comparison of Lossy Mode Resonance Refractive Index Sensors on Structures Based on Graphene and MoS₂

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Surface plasmon resonance sensor based on gold-graphene quantum dots thin film as a sensing nanomatrix for phenol detection

Cited by 12 publications

References 94 publications

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Direct-Write Printed Slippery Surface for Assembling a High-Quality Graphene Structure and Its Application in Flexible Electric Actuators

Sodium-based no-core fiber surface plasmon resonance sensor with high sensitivity and narrow FWHM

Performance Comparison of Lossy Mode Resonance Refractive Index Sensors on Structures Based on Graphene and MoS2

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Performance Comparison of Lossy Mode Resonance Refractive Index Sensors on Structures Based on Graphene and MoS₂