Harvesting microwave energy using pyroelectricity of nanostructured graphene/zirconium-doped hafnium oxide ferroelectric heterostructures.
Nanotechnology
; 34(20)2023 Mar 06.
Article
em En
| MEDLINE
| ID: mdl-36801826
ABSTRACT
In this work, we present the design, atomistic/circuit/electromagnetic simulations, and the experimental results for graphene monolayer/zirconium-doped hafnium oxide (HfZrO) ultra-thin ferroelectric-based field effect transistors fabricated at the wafer scale, regarding the pyroelectricity generation directly from microwave signals, at room temperature and below it, namely at 218 K and at 100 K. The transistors work like energy harvesters, i.e. they collect low-power microwave energy and transform it into DC voltages with a maximum amplitude between 20 and 30 mV. The same devices function as microwave detectors in the band 1-10.4 GHz and at very low input power levels not exceeding 80µW when they are biased by using a drain voltage, with average responsivity values in the range 200-400 mV mW-1.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanotechnology
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Romênia