Polarization insensitive metamaterial based electromagnetic multiband absorber in the long-wave infrared (LWIR) region

Dubey, Sarvesh K.; Kumar, Awadhesh; Dayal, Govind; Pathak, Amit; Srivastava, Sachin

doi:10.1016/j.optlastec.2022.108511

Cited by 8 publications

(1 citation statement)

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“…Constructing metamaterials enables us to alter the electromagnetic characteristics of materials to achieve more favorable optical properties. In recent years, researchers have conducted extensive studies on metamaterial-based electromagnetic (EM) absorbers that are promising for sensing applica-tions [227]. One such metamaterial-based gas sensor was proposed for CO 2 sensing [225].…”

Section: Carbon Dioxide (Co 2 )mentioning

confidence: 99%

Wearable Nano-Based Gas Sensors for Environmental Monitoring and Encountered Challenges in Optimization

Hooshmand,

Kassanos,

Keshavarz

et al. 2023

Sensors

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With a rising emphasis on public safety and quality of life, there is an urgent need to ensure optimal air quality, both indoors and outdoors. Detecting toxic gaseous compounds plays a pivotal role in shaping our sustainable future. This review aims to elucidate the advancements in smart wearable (nano)sensors for monitoring harmful gaseous pollutants, such as ammonia (NH3), nitric oxide (NO), nitrous oxide (N2O), nitrogen dioxide (NO2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), sulfur dioxide (SO2), ozone (O3), hydrocarbons (CxHy), and hydrogen fluoride (HF). Differentiating this review from its predecessors, we shed light on the challenges faced in enhancing sensor performance and offer a deep dive into the evolution of sensing materials, wearable substrates, electrodes, and types of sensors. Noteworthy materials for robust detection systems encompass 2D nanostructures, carbon nanomaterials, conducting polymers, nanohybrids, and metal oxide semiconductors. A dedicated section dissects the significance of circuit integration, miniaturization, real-time sensing, repeatability, reusability, power efficiency, gas-sensitive material deposition, selectivity, sensitivity, stability, and response/recovery time, pinpointing gaps in the current knowledge and offering avenues for further research. To conclude, we provide insights and suggestions for the prospective trajectory of smart wearable nanosensors in addressing the extant challenges.

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Section: Carbon Dioxide (Co 2 )mentioning

confidence: 99%