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SUMMARY:IMX Colloquium - Metal Halide Perovskites for Photovoltaic Applica
 tions
DTSTART:20250519T131500
DTEND:20250519T141500
DTSTAMP:20260922T023515Z
UID:bde1fdfff2f5cabff5266adb77b5b6299565125ef97b1c63bd75b34c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Laura Herz\, Oxford University\, UK\nOrganic-inorganic m
 etal halide perovskites have emerged as attractive materials for solar cel
 ls with power-conversion efficiencies now exceeding 26%. This seminar will
  unravel the fundamental science governing these materials as efficient li
 ght-harvesters and charge collectors\, examining e.g. fundamental mechanis
 ms underpinning charge-carrier mobility and recombination. Our analysis of
  intrinsic photophysical parameters opens the promise of targeted material
  design for solar energy harvesting\, based on readily accessible paramete
 rs\, such as band structure\, phonon frequencies and the dielectric functi
 on. A range of remaining challenges and opportunities relating to material
  microstructure\, ionic migration and toxicity are further discussed. For 
 example\, we have examined how the optoelectronic properties of hybrid per
 ovskites are governed by their nanostructure and structural phases. In the
  context of silicon-perovskite tandem cells\, an important current focus i
 s on discovering the peculiar mechanisms causing detrimental halide segreg
 ation in mixed iodide-bromide lead perovskites with desirable electronic b
 and gaps near 1.8eV. Finally\, the challenges and rewards of discovering a
 nd developing new lead-free perovskites and their structural derivatives a
 re outlined.\n\nBio: Laura Herz is a Professor of Physics at the Universit
 y of Oxford and an EPSRC Open Fellow. She received her PhD in Physics from
  the University of Cambridge in 2002 and was a Research Fellow at St John'
 s College Cambridge from 2001 - 2003. Her current research interests lie i
 n the area of organic\, inorganic and hybrid semiconductors\, with a stron
 g current focus on advanced materials for solar energy conversion. Her res
 earch has been recognized by several awards\, including the Michael Farada
 y Medal by the Institute of Physics\, the Environment\, Sustainability and
  Energy Division Award of the Royal Society of Chemistry\, the Nevill Mott
  Medal of the Institute of Physics and the Bessel Award from the Alexander
  von Humboldt Foundation. She has been listed by Clarivate Analytics as a 
 Highly Cited Researcher since 2018. Laura is a Fellow of the Royal Society
 \, the Royal Society of Chemistry\, the Materials Research Society\, and t
 he Institute of Physics.
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
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