F
Franziska Maculewicz
Researcher at University of Duisburg-Essen
Publications - 6
Citations - 140
Franziska Maculewicz is an academic researcher from University of Duisburg-Essen. The author has contributed to research in topics: Thermoelectric effect & Thermoelectric materials. The author has an hindex of 5, co-authored 6 publications receiving 109 citations.
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Journal ArticleDOI
High Temperature Thermoelectric Device Concept Using Large Area PN Junctions
R. Chavez,Sebastian Angst,Joseph Hall,Joseph Hall,J. Stoetzel,V. Kessler,Lucas A. Bitzer,Franziska Maculewicz,Niels Benson,Hartmut Wiggers,Dietrich E. Wolf,Gabi Schierning,Roland Schmechel +12 more
TL;DR: In this paper, a high temperature thermoelectric device concept using large area nanostructured silicon p-type and n-type (PN) junctions is presented, where the electrical contacts are made at the cold side eliminating the hot side substrate and difficulties that go along with high temperature electrical contacts.
Journal ArticleDOI
Improving the zT value of thermoelectrics by nanostructuring: tuning the nanoparticle morphology of Sb2Te3 by using ionic liquids
Julian Schaumann,Julian Schaumann,Manuel Loor,Manuel Loor,Derya Ünal,Anja Mudring,Anja Mudring,Stefan Heimann,Ulrich Hagemann,Stephan Schulz,Franziska Maculewicz,Gabi Schierning +11 more
TL;DR: This work provides design guidelines for ILs, which allow the synthesis of nanostructured thermoelectrics with improved performances and compares the electrical and thermal conductivities as well as the Seebeck coefficient of the Sb2Te3 nanoparticles obtained from different ILs.
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Record figure of merit values of highly stoichiometric Sb2Te3 porous bulk synthesized from tailor-made molecular precursors in ionic liquids
Stefan Heimann,Stephan Schulz,Julian Schaumann,Anja Mudring,Anja Mudring,Julia Stötzel,Franziska Maculewicz,Gabi Schierning +7 more
TL;DR: In this paper, the synthesis of Sb2Te3 nanoparticles with record-high figure of merit values of up to 1.5 was reported, and the central thermoelectric parameters, electrical conductivity, thermal conductivity and Seebeck coefficient, were independently optimized.
Journal ArticleDOI
Efficient p-n junction-based thermoelectric generator that can operate at extreme temperature conditions
R. Chavez,Sebastian Angst,Joseph Hall,Joseph Hall,Franziska Maculewicz,J. Stoetzel,Hartmut Wiggers,Le Thanh Hung,Ngo Van Nong,Nini Pryds,Gerhard Span,Dietrich E. Wolf,Roland Schmechel,Gabi Schierning,Gabi Schierning +14 more
TL;DR: In this article, a p-n junction is proposed to replace the metallization and electrode bonding on the hot side of the device by a pn junction between the two semiconductor materials, making the device robust against temperature induced failure.