A high-sensitive microwave humidity sensor based on one-step laser direct writing of dielectric silver nanoplates

Li, Ruo‐Zhou; Ji, Junhui; Liu, Leilei; Wu, Zheyuan; Ding, Daye; Yin, Xiaoxing; Yu, Ying; Yan, Jin

doi:10.1016/j.snb.2022.132455

Cited by 10 publications

(3 citation statements)

References 34 publications

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“…Their characteristics are mainly based on the hygroscopic nature of the material and the structure of the electrode, which leads to the change in the impedance upon the change of relative humidity (RH). Gravimetric sensors, such as quartz crystal microbalance (QCM) [9] or surface acoustic wave (SAW) [10], measure the frequency change due to the effect of humidity. Several techniques for optical humidity sensors are also summarized in [2,6].…”

Section: Introductionmentioning

confidence: 99%

“…These are the bottlenecks for the development of humidity sensor materials. Recently, a wide spectrum of materials, material hybrids, and composites have been developed based on different kinds of principles such as paper-based [13], cellulose composites [14], metal oxides [15,16], nanoparticle [10], metal-organic framework [17]. Among widely studied materials for humidity measurement are graphene and its derivatives, especially graphene oxide (GO), using different sensor principles [5,[18][19][20] with high sensitivity and fast response times.…”

Section: Introductionmentioning

confidence: 99%

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Ultra-Sensitive and Fast Humidity Sensors Based on Direct Laser-Scribed Graphene Oxide/Carbon Nanotubes Composites

Al‐Hamry

Chen

et al. 2023

Nanomaterials

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In this paper, the relative humidity sensor properties of graphene oxide (GO) and graphene oxide/multiwalled nanotubes (GO/MWNTs) composites have been investigated. Composite sensors were fabricated by direct laser scribing and characterized using UV-vis-NIR, Raman, Fourier transform infrared, and X-ray photoemission spectroscopies, electron scanning microscopy coupled with energy-dispersive X-ray analysis, and impedance spectroscopy (IS). These methods confirm the composite homogeneity and laser reduction of GO/MWNT with dominant GO characteristics, while ISresults analysis reveals the circuit model for rGO-GO-rGO structure and the effect of MWNT on the sensor properties. Although direct laser scribing of GO-based humidity sensor shows an outstanding response (|ΔZ|/|Z| up to 638,800%), a lack of stability and repeatability has been observed. GO/MWNT-based humidity sensors are more conductive than GO sensors and relatively less sensitive (|ΔZ|/|Z| = 163,000%). However, they are more stable in harsh humid conditions, repeatable, and reproducible even after several years of shelf-life. In addition, they have fast response/recovery times of 10.7 s and 9.3 s and an ultra-fast response time of 61 ms when abrupt humidification/dehumidification is applied by respiration. All carbon-based sensors’ overall properties confirm the advantage of introducing the GO/MWNT hybrid and laser direct writing to produce stable structures and sensors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultra-Sensitive and Fast Humidity Sensors Based on Direct Laser-Scribed Graphene Oxide/Carbon Nanotubes Composites

Al‐Hamry

Chen

et al. 2023

Nanomaterials

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“…Laser printing has become a promising alternative for large-scale fabrication of electronic and optical devices in an on-demand, non-contact, and highly controllable way [ 1 , 2 ]. A focused laser beam can modify the surface features or deposit materials through mechanisms such as laser-induced ablation [ 3 , 4 ], sintering [ 5 ], reduction [ 6 ], carbonization [ 7 ], polymerization [ 8 ], metallization [ 9 , 10 ], etc. Among them, laser-induced forward transfer (LIFT) uses transfer mechanism to deposit materials onto target samples.…”

Section: Introductionmentioning

confidence: 99%

Laser-Induced Forward Transferred Optical Scattering Nanosilica for Transparent Displays

Yang

Guo

et al. 2022

Nanomaterials

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Laser printing has become a promising alternative for large-scale fabrication of functional devices. Here, laser-induced forward transfer (LIFT) of nanosilica was successfully achieved using a lower-cost nanosecond laser with a center wavelength of 1064 nm. To enhance the light absorption of silica, a small amount of graphene oxide (GO) was added to the fumed silica. Investigations were conducted to give an insight into the role of GO in the LIFT process. Pattern deposition was achieved with a minimum line width of 221 μm. The scattering can be tuned from ~2.5% to ~17.5% by changing the laser fluence. The patternable transparent display based on laser transferred nanosilica (LTNS) film was also demonstrated, showing its capability to deliver information on multiple levels. This LIFT based technique promotes fast, flexible, and low-cost manufacturing of scattering-based translucent screens or patterns for transparent displays.

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Recent Advances in Laser Manufacturing: Multifunctional Integrative Sensing Systems for Human Health and Gas Monitoring

Huang,

Yang,

2024

Adv Funct Materials

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Since its first application in the 1950s, the laser has become an indispensable tool in scientific research and manufacturing. Laser manufacturing includes traditional methods such as cutting and engraving and emerging methods such as laser‐induced surface modification, laser‐induced materials transfer, and laser ablation synthesis. Laser manufacturing is widely applied in the fabrication of multifunctional sensing systems. Compared with other manufacturing methods such as lithography, vacuum deposition, and etching processes, laser manufacturing technology has several advantages, including maskless patterning, high precision, non‐contact processing, minimum heat affected zone, high throughput, ability to work with multiple materials, and ease of automation and integration. Here, this review aims to present a comprehensive analysis of the applications of laser manufacturing in various components of health and gas monitoring systems. Emphasis is placed on the application of laser manufacturing in various components of biosensors, including microchannels, sensing circuits, and working electrodes. Subsequently, laser manufacturing of physical and gas sensors is introduced. Meanwhile, traditional laser manufacturing methods, laser surface modification, laser‐induced material transfer, and laser ablation synthesis are introduced. Finally, the challenges and prospects of laser manufacturing in sensing systems are discussed.

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A high-sensitive microwave humidity sensor based on one-step laser direct writing of dielectric silver nanoplates

Cited by 10 publications

References 34 publications

Ultra-Sensitive and Fast Humidity Sensors Based on Direct Laser-Scribed Graphene Oxide/Carbon Nanotubes Composites

Ultra-Sensitive and Fast Humidity Sensors Based on Direct Laser-Scribed Graphene Oxide/Carbon Nanotubes Composites

Laser-Induced Forward Transferred Optical Scattering Nanosilica for Transparent Displays

Recent Advances in Laser Manufacturing: Multifunctional Integrative Sensing Systems for Human Health and Gas Monitoring

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