4 papers
Iodide-methylammonium interaction is responsible for ferroelectricity in CH3NH3PbI3
Joachim Breternitz, Frederike Lehmann, Sarah A. Barnett +2
Excellent conversion efficiencies of over 20 % and facile cell production have placed hybrid perovskites at the forefront of novel solar cell materials with CH3NH3PbI3 being its ar…
Mechanochemical Synthesis of the Lead-Free Double Perovskite Cs2[AgIn]Br6 and its Optical Properties
Joachim Breternitz, Sergiu Levcenko, Hannes Hempel +4
Hitting hard on the binary halides yields in the formation of Cs2[AgIn]Br6. The lead-free double perovskite marks, although not usable itself, a further step forward in finding sus…
Cation and anion substitutions in hybrid perovskites: solubility limits and phase stabilizing effects
Frederike Lehmann, Silvia Binet, Alexandra Franz +2
Organic or inorganic (A) metal (M) halide (X) perovskites (AMX3) are semiconductor materials setting the basis for the development of highly efficient, low-cost and multijunction s…
Infrared Spectroscopic Study of Vibrational Modes across the Orthorhombic-Tetragonal Phase Transition in Methylammonium Lead Halide Single Crystals
Götz Schuck, Daniel M. Többens, Monika Koch-Müller +2
Single crystals of the methylammonium (MA) lead halides MAPbI3, MAPbBr3, and MAPbCl3 have been investigated using infrared spectroscopy with the aim of analyzing structural and dyn…