CMOS and beyond CMOS
Discover why imec is the premier R&D center for advanced logic & memory devices. anced logic & memory devices.
Connected health solutions
Explore the technologies that will power tomorrow’s wearable, implantable, ingestible and non-contact devices.
Life sciences
See how imec brings the power of chip technology to the world of healthcare.
Sensor solutions for IoT
Dive into innovative solutions for sensor networks, high speed networks and sensor technologies.
Artificial intelligence
Explore the possibilities and technologies of AI.
More expertises
Discover all our expertises.
Research
Be the first to reap the benefits of imec’s research by joining one of our programs or starting an exclusive bilateral collaboration.
Development
Build on our expertise for the design, prototyping and low-volume manufacturing of your innovative nanotech components and products.
Solutions
Use one of imec’s mature technologies for groundbreaking applications across a multitude of industries such as healthcare, agriculture and Industry 4.0.
Venturing and startups
Kick-start your business. Launch or expand your tech company by drawing on the funds and knowhow of imec’s ecosystem of tailored venturing support.
/Job opportunities/Post doc Microfabrication of thin-film batteries with combined energy harvesting (CSC)

Post doc Microfabrication of thin-film batteries with combined energy harvesting (CSC)

Research & development - Leuven | More than two weeks ago

Turn latent heat in chemical energy for autonomous devices

Post doc Microfabrication of thin-film batteries with combined energy harvesting (CSC2021-048)

Project description

Please note that this project is in the framework of Chinese Scholarship Counsel (CSC)-IMEC-KU Leuven Scholarships. Please read the requirements before applying here.

NTurn latent heat in chemical energy for autonomous devices Micro-batteries are small batteries typically integrated with the microsystem for which they provide the power. This microsystem can be a wireless sensor for the internet of things, a smart pill for medical diagnosis and smart drug delivery or an embedded chip in for example a smart card. The main issue with micro-batteries is the small energy they can carry, which is intrinsically the case for the small footprint and available volume for charge storage. Therefore, these tiny energy storage devices are typically combined with an on-board energy-harvester such as an infrared photo-voltaic cell to be able to recharge the battery when idle. Of course, this harvester also takes up space and for true autonomous microsystems (i.e. no external connections possible), management of available space is critical. In this project, we look at the possibility of combining storage and harvesting in a single device for space and thus energy optimization in a microsystem. These new type of combined harvester and energy storage devices have been nick named “harvestorers”. Specifically, we are integrating thin-film batteries on silicon substrates. At imec, we have developed 3D structuring of the substrate to increase the footprint capacity of the micro-battery. In a next step, we want to evaluate the possibility of using latent heat the charge the battery. Galvano-thermal cells have been known for a long time. A temperature difference between two same half-cells creates a voltage difference simply as a result of thermodynamics (Nernst equation for electrode equilibrium potential). The problem with these “large” cells is that the Ohmic drop can exceed the potential difference (energy) and thus the cell is non-performant. At imec, we are using thin-film batteries and take advantage of micro-structuring and micropatterning to fabricate functional batteries for autonomous devices powered by heat. The design for the placement and spacing of anodes and cathodes will be critical for optimal harvesting. The work will involve cell and chip circuit design, micropatterning, deposition of thin-film stacks and testing of the cells. The state-of-the-art nanofabrication facilities of imec and a fully equipped battery lab are at the disposal for the researcher.

 

Promotor: Philippe Vereecken (KU Leuven)

Daily advisor: Nouha Labyedh (imec)

Manager: Maarten Mees (imec)

Required background: Electronic engineering, materials science, nanoscience and nanoengineering

Type of work: microfabrication, thin-film deposition, circuit design and testing

Please note that this project is in the framework of Chinese Scholarship Counsel (CSC)-IMEC-KU Leuven Scholarships. Please read the requirements before applying here.

This website uses cookies for analytics purposes only without any commercial intent. Find out more here. Our privacy statement can be found here. Some content (videos, iframes, forms,...) on this website will only appear when you have accepted the cookies.