A new paper about Rubidium antimony halides perovskites as photovoltaic material has been published recently. In this contribution the influence of varying the bromide to iodide ratio on the structural, optical and photovoltaic properties of Rb3Sb2Br9-xIx (x = 0 – 9) is systematically investigated. Rb3Sb2I9 is the best as absorber material displaying power conversion efficiencies of 1.37%. Moreover, the solar cell devices exhibit low hysteresis properties and are stable for more than 150 days stored under inert atmosphere.
Dr. Daniel Rettenwander ist für seine Arbeit zur Co-Substitution in LLZO-Granaten mit dem GÖCh-Habilitationspreis 2018 ausgezeichnet worden. Herzlichen Glückwunsch vom ICTM!
Sebastian Höfler and Thomas Rath received the 'Best Review Article Award' of Monatshefte für Chemie for their article "Progress on lead-free metal halide perovskites for photovoltaic applications: a review". The award ceremony took place on Nov. 8th in the framework of the general assembly of the Austrian Chemical Society in Vienna. Congratulations from ICTM!
Oct. 31st: Christian defended his PhD-work entitled "Functional Organic Materials for High Energy Batteries: Soft Mixed Electron and Ion Conductors and Organics in Singlet Oxygen Electrochemistry" with excellence! Well done! Christian will now continue his work within the project OMICON for some month finishing a bunch of publications. ICTM once again congratulates and wishes him all the best for this endeavour.
New paper in Chem. Mater. about structure and ion dynamics in Li-bearing antiperovskites. Thanks to Isabel and Sebastian for their great work to untangle some of the features of this sensitive compounds. We appreciate the help of A. Seneshyn and G. Redhammer from Munich and Salzburg. Link.
See also: https://twitter.com/WilkeningLab
Based on their Master theses “Porous Organic Polymers as Matrix Materials for Optical Oxygen Sensors” and “Metal-organic frameworks with imidazole-carboxylate containing ligands” Elisabeth and Katharina Kodolitsch finished their studies on Oct. 22nd. Sincere congratulations from ICTM!
To improve the performance of supercapacitors, a mechanistic understanding of ion electrosorption is required. In this work ICTM’s Christian Prehal and colleagues from the Institute of Inorganic Chemistry, the Montanuniversität Leoben and the INM Saarbrücken identify parameters like salt concentration, charging velocity or cell design, that control mechanisms of ion charge storage. Moreover, they show that charging initially leads to a non-equilibrium ion configuration even at extremely low cycling speed, followed by an increase of the total ion concentration, i.e. a charge-neutral equilibration. The work has been published in Nature Communications.
Oct. 10th, 2018: Sincere congratulations to Efthymia Vakalopoulou for finishing her Master studies today! In the last months, Efthymia became mistress of polyHIPEs and today she escaped from the clutches and cavities of this kind of material. Her Master thesis is entitled "Ring Opening Metathesis Polymerization derived polyHIPEs with novel features". Very well done!
Efthymia thanks the Onassis foundation for providing her with a stipend.
Oct. 1st, 2018: Florian Gobec received his Master's degree based on his diploma work entitled: “Towards clickable Metal Organic Frameworks – Synthesis of tetrazine based linkers”. Sincere congratulations from ICTM – well done, Flo!
March 23rd, 2018: Luki just passed his Rigorosum based on his PhD-work "Parasitic and Interphase Chemistries in Li-ion Batteries and Beyond" with excellence! Well done Dr. Schafzahl!
Luki will now continue his engagement at ICTM as Assistant Professor during the summer term 2018.
A team of researchers of ICTM disclosed the chemical recycling of natural rubber waste via a new degradation route allowing for a subsequent polymerization approach. Congratulations to Prof. Abbas and Max Neubauer for their great achievement!
Nika Mahne and Stefan Freunberger, in collaboration with the University of California-Berkeley, uncovered the mystery of the absence of oxygen evolvement during the decomposition of lithium carbonate, which is of far reaching relevance for almost all Li battery cathodes. The results of this endeavor have just been published in Angewandte Chemie as a VIP-article. Congratulations!
Because of the toxicity of lead halide perovskites, there is currently growing interest to study lead-free perovskite materials for photovoltaic applications. Germanium halide perovskites have well-suited properties, however, mainly due to stability issues of this material, the performance of germanium perovskite based solar cells remained low so far.
Recently, researchers at ICTM found that a modification of the chemical composition, in particular, the introduction of bromide ions into the methylammonium germanium iodide perovskite, leads to a significant improvement of the solar cell performance along with a slight enhancement of the stability of the germanium perovskite. The according publication appeared in ACS Applied Energy Materials.
Feb. 26th, 2018: Elisabeth will do research on Olefin-Metathesis catalysts with cis-dichloro stereochemistry and Flo will work on novel clickable ligands for MOFs. All the best for their research!
Feb. 23rd 2018: Bettina defended her PhD thesis entitled "The Aprotic Li-O2 Battery - Fighting the Detrimental Impacts of Oxygen" with excellence! Well done Dr. Schafzahl!
Betti will now continue her engagement at ICTM as Assistant Professor during the summer term 2018.
Feb. 7th, 2018: Efthymia will pursue research on emulsion templated elastomeric polymer-foams in the framework of a Master's thesis.
Feb. 1st 2018: Katharina will do her Master's thesis on novel linker-systems for metal organic frameworks.
Julia finished her Master studies by defending her thesis entitled "Latex blends - influence of the blending ratio on the mechanical properties" on Jan. 30th 2018. Well done Julia - congratulations!
Researchers of ICTM disclosed an accurate and integral quantification of carbonaceous species and peroxides or superoxides in battery electrodes by refining and advancing previous procedures. Congratulations to Bettina, Eleonore, Lukas, Yann and Anjana for their conscientious pieces of work making this methodological paper possible!