Electroceramic materials exhibit a variety of properties and are increasingly used, for example, in energy conversion, energy storage, and electronics. For developing advanced electroceramic materials with novel and/or enhanced properties, which are compatible with major societal challenges as climate-neutrality, health-protection, and resource and energy efficiency, it is highly desirable to be able to predict how their properties depend on composition and on the way the material is made.

Fermi Energy

While this is possible to large extent in semiconductor technology, it is currently prohibited for electroceramic oxides by the lack of a generalized understanding of how chemical substitution (doping) is affecting material properties.

The Collaborative Research Center FLAIR proposes to overcome this deficiency by using the Fermi energy as a common parameter to describe the different possible charge compensation mechanisms, which are decisive for material properties. In doing so, FLAIR explores Fermi level engineering as a new avenue towards the design of oxide electroceramics and also provides an advanced understanding of space-charge regions at surfaces, grain boundaries, heterointerfaces. The relation between the Fermi energy and phase stability is applied further to derive novel synthesis routes and to control microstructure evolution. Eventually, Fermi level engineering shall become a toolkit for designing a variety of oxide electro-ceramic materials for different applications.


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Picture: Jessica Bagnoli

The LOEWE project FLAME - Essential groundwork for the Collaborative Research Center FLAIR

The goal of the project is to use electronic structure analysis to identify new lead-free antiferroelectric materials

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Partner Institutions

Logo RWTH Aachen
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