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SUMMARY:Dynamical disorder and carrier localization in halide perovskites 
 - Julia Wiktor\, Chalmers University of Technology
DTSTART:20221017T130000Z
DTEND:20221017T133000Z
UID:TALK183074@talks.cam.ac.uk
CONTACT:Dr M. Simoncelli
DESCRIPTION:Metal halide perovskites have attracted remarkable interest as
  promising materials for optoelectronic applications. These materials are 
 very soft which affects both their local structure at room temperature as 
 well as the properties of excess charges. In this talk I will first focus 
 on how the dynamical structure of halide perovskites affects their fundame
 ntal properties and the way we interpret experimental measurements done fo
 r these materials. Then\, I will talk about how the softness of perovskite
 s can lead to charge localization via polaron formation. I will discuss di
 fferent types of polaronic states that have been predicted computationally
  in lead and tin based halide perovskites and how they can affect the prop
 erties of these materials. From a modeling perspective\, I will also show 
 how various effects\, such as self-interaction\, spin-orbit coupling and t
 emperature affect the computed properties of the polaronic states.
LOCATION:Zoom
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