Publication: An approach to emerging optical and optoelectronic applications based on NiO micro- and nanostructures
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2021-05
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Walter de Gruyter GMBH
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Abstract
Nickel oxide (NiO) is one of the very few p-type semiconducting oxides, the study of which is gaining increasing attention in recent years due to its potential applicability in many emerging fields of technological research. Actually, a growing number of scientific works focus on NiO-based electrochromic devices, high-frequency spintronics, fuel cell electrodes, supercapacitors, photocatalyst, chemical/gas sensors, or magnetic devices, among others. However, less has been done so far in the development of NiO-based optical devices, a field in which this versatile transition metal oxide still lags in performance despite its potential applicability. This review could contribute with novelty and new forefront insights on NiO micro and nanostructures with promising applicability in optical and optoelectronic devices. As some examples, NiO lighting devices, optical microresonators, waveguides, optical limiters, and neuromorphic applications are reviewed and analyzed in this work. These emerging functionalities, together with some other recent developments based on NiO micro and nanostructures, can open a new field of research based on this p-type material which still remains scarcely explored from an optical perspective, and would pave the way to future research and scientific advances.
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©2021 WALTER DE GRUYTER GMBH
This work was supported by MINECO/FEDER/M-ERA.Net Cofund projects: MAT 2015-65274-R, RTI2018-097195-B-100 and PCIN-2017-106. This research has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 957225, project BAT4EVER.