Efficient humidity sensor based on surfactant free Cu2ZnSnS4 nanoparticles

Patil, Urmila; Dhanasekar, M.; Kadrekar, Riddhi; Arya, A.; Bhat, S. Venkataprasad; Late, Dattatray J.

doi:10.1016/j.ceramint.2022.04.040

Cited by 6 publications

(1 citation statement)

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“…On the other hand, the ceramic- and polymer-based materials are non-conductive, so the current measurement type in humidity sensors is more widespread in semiconductor- and carbon-based materials. In recent years, sulfide-based humidity sensors [ 106 , 107 , 108 , 109 , 110 , 111 ] are another novel material that research groups are interested in. Most of the sulfide humidity sensors can be categorized as the semiconductor type; for instance, the CdS [ 36 , 37 , 38 , 111 ], TiO 2 /PbSnS [ 106 ], SnS [ 107 ], SnS 2 [ 108 ] or copper, zinc, tin, sulfide (CZTS)-related [ 109 ] humidity nanosensors.…”

Section: Humidity Nanosensorsmentioning

confidence: 99%

Advances in Humidity Nanosensors and Their Application: Review

Chung

2023

Sensors

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As the technology revolution and industrialization have flourished in the last few decades, the development of humidity nanosensors has become more important for the detection and control of humidity in the industry production line, food preservation, chemistry, agriculture and environmental monitoring. The new nanostructured materials and fabrication in nanosensors are linked to better sensor performance, especially for superior humidity sensing, following the intensive research into the design and synthesis of nanomaterials in the last few years. Various nanomaterials, such as ceramics, polymers, semiconductor and sulfide, carbon-based, triboelectrical nanogenerator (TENG), and MXene, have been studied for their potential ability to sense humidity with structures of nanowires, nanotubes, nanopores, and monolayers. These nanosensors have been synthesized via a wide range of processes, including solution synthesis, anodization, physical vapor deposition (PVD), or chemical vapor deposition (CVD). The sensing mechanism, process improvement and nanostructure modulation of different types of materials are mostly inexhaustible, but they are all inseparable from the goals of the effective response, high sensitivity and low response–recovery time of humidity sensors. In this review, we focus on the sensing mechanism of direct and indirect sensing, various fabrication methods, nanomaterial geometry and recent advances in humidity nanosensors. Various types of capacitive, resistive and optical humidity nanosensors are introduced, alongside illustration of the properties and nanostructures of various materials. The similarities and differences of the humidity-sensitive mechanisms of different types of materials are summarized. Applications such as IoT, and the environmental and human-body monitoring of nanosensors are the development trends for futures advancements.

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