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3D-stacked Si-integrated supercapacitor devices
Market Maturity: Exploring
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Market Creation Potential
This innovation was assessed by the JRC’s Market Creation Potential indicator framework as addressing the needs of existing markets and existing customers. Learn more
Go to Market needs
Needs that, if addressed, can increase the chances this innovation gets to (or closer to) the market incude:
  • Prepare for Market entry
  • Scale-up market opportunities
Location of Key Innovators developing this innovation
Key Innovators
UN Sustainable Development Goals(SDG)
This innovation contributes to the following SDG(s)
Ensure access to affordable, reliable, sustainable and modern energy for all

The UN explains: "Energy is central to nearly every major challenge and opportunity the world faces today. Be it for jobs, security, climate change, food production or increasing incomes, access to energy for all is essential.

Transitioning the global economy towards clean and sustainable sources of energy is one of our greatest challenges in the coming decades. Sustainable energy is an opportunity – it transforms lives, economies and the planet."

Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation

The UN explains: "Investments in infrastructure – transport, irrigation, energy and information and communication technology – are crucial to achieving sustainable development and empowering communities in many countries. It has long been recognized that growth in productivity and incomes, and improvements in health and education outcomes require investment in infrastructure."

The EU-funded Research Project
This innovation was developed under the Horizon 2020 project FOXES with an end date of 30/09/2024
  • Read more about this project on CORDIS
Description of Project FOXES
Devices for the Internet-of-Things (IoT) are often placed in remote locations or are embedded in vehicles or machines and thus need to be fully wireless, lightweight, and energy-autonomous. The project FOXES aims to provide a clean, compact, low-cost and scalable high energy density solution for powering IoT devices such as wireless sensor nodes. The energy supply system developed by FOXES is constituted by the combination of a lead-free perovskite solid cell and a multilayer relaxor thin film capacitor with high energy density. Coupling these two devices allows solar energy surplus to be stored in the capacitor and being used for periods of time when solar light is not available. The energy balance (intake/discharge) is regulated by an electronic circuit, ensuring a positive energy balance for powering the sensor node. The FOXES system is constituted by: -Fully lead-free perovskite solar cell with > 10% efficiency. -Lead-free perovskite multilayer thin film capacitor with high energy density (> 50 J/cm3). -Graphene and metal-oxide based electronics for energy management circuit. These components will be fully 3D monolithically integrated using low-cost and sustainable processes (e.g. spin coating, spray pyrolysis) minimising the use of harmful chemicals or critical raw materials. This will also improve recycling and end-of-life disposability of the FOXES system. The targeted energy generation of the FOXES system is > 250 mJ/day. The developed system will be then coupled with low-power light-activated gas sensors (as use case) – giving less than 3 mJ/day energy consumption – and the necessary ASIC/data transmission devices for sensor operation. For the latter, commercial low-power solutions will be adopted, so that a positive energy balance will be maintained. The combined energy supply – sensor system will be tested in the lab against gas mixtures during variable irradiation conditions. A roadmap for scaling up the FOXES technology will be also defined.

Innnovation Radar's analysis of this innovation is based on data collected on 23/11/2023.
The unique id of this innovation in the European Commission's IT systems is: 116016