Two-dimensionAl tRansition-metal dichalcoGEnides-based recTifier for RF harvesting

In the present day, electromagnetic (EM) signals operating within the radio frequency (RF) range, including Wi-Fi frequencies of 2.4 GHz and 5.8 GHz, and cellular telecommunication spanning from 700 MHz to 2.7 GHz, are becoming increasingly pervasive in indoor and outdoor environments. These signals constitute a prolific and continuous source of RF energy.

Harnessing this RF energy holds great potential for powering future distributed electronics.

However, before reaching the technology readiness level required for commercial utilization of RF harvesting, numerous factors must be taken into account. Among these considerations, the performance of diodes (rectifiers) is of paramount importance. Indeed, in most cases, the efficacy of the harvester heavily relies on the rectifier.

This component ultimately enables switching-type conversions, such as alternating current to direct current (acdc) conversions.

The most crucial parameter for assessing the rectification capabilities of a diode technology is the short-circuit current responsivity or the voltage responsivity at zero bias.

In this context, graphene-based rectifiers have exhibited remarkable characteristics, including a zero-bias voltage responsivity reaching up to 71 V-1. The TARGET RF project will continue to innovate in emerging materials and device architecture.

Specifically, it will concentrate on investigating the responsivity of emerging two-dimensional (2D) technologies for rectifiers, particularly focusing on Rectifiers based on various Two-dimensional transition metal dichalcogenides (TMDs).This pursuit aims to enhance the efficiency of converting RF to DC power, particularly in RF low-power density scenarios.

TARGET RF (24 months) will be hosted at the Granada University and will l be supervised by Prof.

Francisco Javier Garcia Ruiz, an internationally recognized expert in this area, take advantage, hence, the skills of his researcher's team and the infrastructure.