Biosensors, Bioelectronics and Biodevices
Nidhi Patel; Rahul Dev Bairwan; H.P.S. Abdul Khalil; Mardiana Idayu Ahmad; Esam Bashir Yahya; Soni Thakur; Kanchan Jha
Abstract
The planet must deal with the two main concerns of the twenty-first century: energy storage and protecting the environment. Energy storage systems urgently require green and sustainable electrode materials due to the rise in worldwide demand for energy and severe environmental damage. The biopolymer-based ...
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The planet must deal with the two main concerns of the twenty-first century: energy storage and protecting the environment. Energy storage systems urgently require green and sustainable electrode materials due to the rise in worldwide demand for energy and severe environmental damage. The biopolymer-based device reduces e-waste and environmental issues caused by conventional electronic devices. Nanocellulose is a solid choice for green electronics, due to its unique properties, like being eco-friendly, cost effective, biodegradable, having great mechanical strength, and remarkable optical clarity. With its exceptional qualities, sustainability and distinctive structures, nanocellulose has become a hopeful nanomaterial with enormous potential for creating useful energy storage systems. This review aims to offer novel viewpoints on flexible composites made of nanocellulose or nanocellulose-based materials for enhanced energy technologies. Initially, a brief introduction to the special structural features and attributes of nanocellulose is made. To improve these composites’ performances, the structure-property-application interactions must be addressed. The most recent uses of nanocellulose-based composites are then thoroughly reviewed. These include flexible solar cells, supercapacitors (SC), lithium-ion batteries and developing energy device innovations. Finally, nanocellulose-based composites for the next generation of energy devices are offered, along with their current difficulties and potential future developments.
Biosensors, Bioelectronics and Biodevices
Giorgos Papadimitropoulos; Angelika Balliou; Dimitris Kouvatsos; Dimitris Davazoglou
Abstract
The gas sensing properties of porous hot-wire MoS2 (hwMoS2) thin films have been studied. The films were deposited on oxidized silicon substrates by heating a molybdenum filament in a vacuum chamber in H2S environment. The samples remain at room temperature during the deposition and the grown films are ...
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The gas sensing properties of porous hot-wire MoS2 (hwMoS2) thin films have been studied. The films were deposited on oxidized silicon substrates by heating a molybdenum filament in a vacuum chamber in H2S environment. The samples remain at room temperature during the deposition and the grown films are amorphous and porous. Reversible changes of the current values in the hwMoS2 films were observed due to the presence or upon removal of chemical gases such as hydrogen (H2) and carbon monoxide (CO). The sensitivity, was dependent on the concentrations of the gases and the temperature of measurement. The response time was found to be comparable to the recovery time and of the order of a few seconds. It is important to note that the surface of the hwMoS2 films was not activated with any catalyst, which is a common practice in most thin films used for gas sensing, rendering our process simpler and cheaper.
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