Spontaneous Generation of Electromotive Force in Thin Film Al/Nanosilicon/Al Structures

Contemporary pursuits in electronics include the miniaturization as well as flexibilization of devices. Although there are a large number of different thin and flexible electrochemical batteries, only a few can boast the possibility of working in high humidity conditions. This paper reports on the f...

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Bibliographic Details
Published in:Batteries (Basel) 2017-12, Vol.3 (4), p.31
Main Authors: Dorofeev, Sergey, Kononov, Nikolay, Bubenov, Sergei, Kotin, Pavel, Zolotykh, Aleksandr, Grigoriev, Denis
Format: Article
Language:English
Subjects:
Aluminum
Asymmetry
Cellulose
Electric potential
Electrodes
Electrolytes
Electronic paper
Energy resources
Fluorides
Fuel cells
Glass substrates
Hydrogen
Miniaturization
Nanocrystals
Nanoparticles
nanosilicon
Silicon
silicon-water element
Smart cards
spontaneous emf generation
thin film battery
Thin films
Volt-ampere characteristics
Water vapor
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Summary:Contemporary pursuits in electronics include the miniaturization as well as flexibilization of devices. Although there are a large number of different thin and flexible electrochemical batteries, only a few can boast the possibility of working in high humidity conditions. This paper reports on the fabrication of structures consisting of films of silicon nanoparticles encased between two aluminium electrodes. The value of electromotive force (emf) measured depends on the temperature of the sample and on the pressure of water vapor in the storage atmosphere and reaches approximately 1 V. Volt-ampere characteristics were investigated at different conditions to yield a model of emf generation in these structures. It was found that the reaction of water with silicon nanoparticles is the prime reason behind emf generation. Such a source may be introduced into electronic paper, and employed in the next generation of smart cards. The structure may also be manufactured directly on the surface of silicon chips, such as on the back of crystals in microschemes.
ISSN:2313-0105
2313-0105
DOI:10.3390/batteries3040031