Poster Award for HZB-Postdoc at EMRS Spring Meeting
Ah Reum Jeong has completed her PhD in physics at Ewha Womans University in Seoul, Korea. She now works as a postdoc in the Hybrid Material Systems & Nano-Analytics team of Dr. Marin Rusu.
During the spring meeting 2015 of the European Materials Research Society the Poster contribution of Dr. Ah Reum Jeong (HZB-Institute for Heterogeneous Material Systems) was selected for an award. The young scientist has presented results on electronic and structural properties in relation to chemical composition of molybdenum oxide layers, which are widely applied in photovoltaic as well as optoelectronic devices.
During the spring meeting 2015 of the European Materials Research Society the Poster contribution of Dr. Ah Reum Jeong (HZB-Institute for Heterogeneous Material Systems) was selected for an award. The young scientist has presented results on electronic and structural properties in relation to chemical composition of molybdenum oxide layers, which are widely applied in photovoltaic as well as optoelectronic devices.
Ah Reum Jeong has completed her PhD in physics at Ewha Womans University in Seoul, Korea. She now works as a postdoc in the Hybrid Material Systems & Nano-Analytics team of Dr. Marin Rusu in the Hybrid-PV-Project. „There are still relevant processes in molybdenum oxide which we do not completely understand yet“, she states.
In her research, she modifies MoO3-layers with defects and analyzes its morphology, structure and work functions at different temperatures by Kelvin probe force microscopy in ultra-high vacuum and Raman spectroscopy. Chemical composition of the films was in addition analyzed by x-ray photoelectron spectroscopy measurements under the guidance of Prof. Dr. Marcus Bär.
„At first I wasn’t aware that among the people surrounding my poster one person was a member of the jury“, Ah Reum Jeong says. „He has asked some quite specific questions and we had a very good discussion. I am really happy about this award since it helps to get even more attention for our work in the scientific community.”
„Ah Reum Jeong has convinced the jury with the scientific quality of her work and with a very clear presentation “, Marin Rusu states. The poster has been presented at the Symposium "Synthesis, processing and characterization of nanoscale multi functional oxide films".
More Information: EMRS-2015 Spring Meeting and Exhibition, Lille (France) has taken place from May 11-15, 2015
- Porous Radical Organic framework improves lithium-sulphur batteriesA team led by Prof. Yan Lu, HZB, and Prof. Arne Thomas, Technical University of Berlin, has developed a material that enhances the capacity and stability of lithium-sulphur batteries. The material is based on polymers that form a framework with open pores (known as radical-cationic covalent organic frameworks or COFs). Catalytically accelerated reactions take place in these pores, firmly trapping polysulphides, which would shorten the battery life. Some of the experimental analyses were conducted at the BAMline at BESSY II.
- KlarText Prize for Hanna TrzesniowskiThe chemist has been awarded the prestigious KlarText Prize for Science Communication by the Klaus Tschira Foundation.
- Shedding light on insulators: how light pulses unfreeze electronsMetal oxides are abundant in nature and central to technologies such as photocatalysis and photovoltaics. Yet, many suffer from poor electrical conduction, caused by strong repulsion between electrons in neighboring metal atoms. Researchers at HZB and partner institutions have shown that light pulses can temporarily weaken these repulsive forces, lowering the energy required for electrons mobility, inducing a metal-like behavior. This discovery offers a new way to manipulate material properties with light, with high potential to more efficient light-based devices.