• 文献标题:   Harvesting microwave energy using pyroelectricity of nanostructured graphene/zirconium-doped hafnium oxide ferroelectric heterostructures
  • 文献类型:   Article
  • 作  者:   DRAGOMAN M, ALDRIGO M, DINESCU A, VASILACHE D, IORDANESCU S, DRAGOMAN D, LAUDADIO E, PAVONI E
  • 作者关键词:   energy harvesting, ferroelectric, graphene, hafnium oxide, heterostructure, microwave, pyroelectricity
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1088/1361-6528/acbcd9
  • 出版年:   2023

▎ 摘  要

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 80 mu W when they are biased by using a drain voltage, with average responsivity values in the range 200-400 mV mW(-1).