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SUMMARY:Ion Transport in Perovskites - Prof. Dr. Joachim Maier - Max Planc
 k Institute for Solid State Research\, Stuttgart\, Germany
DTSTART:20220321T110000Z
DTEND:20220321T120000Z
UID:TALK171806@talks.cam.ac.uk
CONTACT:Amita Ummadisingu
DESCRIPTION:In a nutshell\, the talk is about ionic charge carriers in mix
 ed conductors (general case of solids exhibiting\nionic and electronic con
 ductivities) with a special eye on the photoactive halide perovskites. The
  first part of the talk is actually concerned with oxide perovskites (SrTi
 O 3 as a typical example)\, the charge carrier chemistry of which is rathe
 r well understood and the consideration of which forms an appropriate\nint
 roduction. Starting out from this angle\, many phenomena in the halide per
 ovskites which are treated in the major part become understandable.\nAs fa
 r as the halide perovskites are concerned\, the following key points are a
 ddressed:\n- Measurement\, understanding and tunability of ion and electro
 n transport\n- Thermodynamic and kinetic stability\n- Light effects on ion
  transport\; photo-degradation and photo-demixing\n- Ionic control of spac
 e charge effects (nanoionics)\nIn broader terms\, the contribution highlig
 hts the role of solid state ionics for the field of photovoltaics and\, as
  an outlook\, points towards optoionics as a future novel scientific field
 .
LOCATION:https://us06web.zoom.us/j/86378888140?pwd=Tmt0SW54QmErOGIyZkh0ZlJ
 DeFRqZz09
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