Poster award für HZB scientist at ICT2018
Katherine Ann Mazzio was awarded for her poster contribution at the ICT2018 in Caen.
At the International Conference on Thermoelectrics in July in Caen, France, Dr. Katherine Ann Mazzio from the HZB Institute of Nanospectroscopy received a prize for her poster. The conference is the world's largest symposium on thermoelectric materials.
The poster entitled "Hybrid Polymer/Nanoparticle Composites for High-Performance Thermoelectrics" presents a new process developed by the HZB team for the synthesis of hybrid thermoelectric materials. "We are actively pursuing hybrid thermoelectric materials from inorganic nanostructures in conductive polymer matrices for room temperature applications," explains Katherine Ann Mazzio. "In this paper we manipulated the stoichiometry of Ag2-xTe nanocrystals coated with the conductive polymer PEDOT:PSS and followed how changes in stoichiometry influenced structure/property relationships.
The presented work was performed in close collaboration with Danny Kojda and Britta Ryll from Klaus Habicht’s group at HZB. Katherine Ann Mazzio is a post-doctoral research associate, head of the thermoelectrics working group in the Institute for Nanospectroscopy and head of the chemistry and off-synchrotron analytics laboratories at EMIL.
red.
https://www.helmholtz-berlin.de/pubbin/news_seite?nid=14862;sprache=en
- Copy link
-
Bright prospects for tin perovskite solar cells
Perovskite solar cells are widely regarded as the next generation photovoltaic technology. However, they are not yet stable enough in the long term for widespread commercial use. One reason for this is migrating ions, which cause degradation of the semiconducting material over time. A team from HZB and the University of Potsdam has now investigated the ion density in four different, widely used perovskite compounds and discovered significant differences. Tin perovskite semiconductors produced with an alternative solvent had a particular low ion density — only one tenth that of lead perovskite semiconductors. This suggests that tin-based perovskites could be used to make solar cells that are not only really environmentally friendly but also very stable.
-
Joint Kyiv Energy and Climate Lab goes live
Helmholtz-Zentrum Berlin and the National University of Kyiv-Mohyla Academy established on 27 November a Joint Energy and Climate Lab.
-
How carbonates influence CO2-to-fuel conversion
Researchers from the Helmholtz Zentrum Berlin (HZB) and the Fritz Haber Institute of the Max Planck Society (FHI) have uncovered how carbonate molecules affect the conversion of CO
2 into valuable fuels on gold electrocatalysts. Their findings reveal key molecular mechanisms in CO
2 electrocatalysis and hydrogen evolution, pointing to new strategies for improving energy efficiency and reaction selectivity.