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SUMMARY:Controlling charge, spin and light in Lead-Halide Inspired Hybrid S
 emiconductors
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20203001T000000
UID:2026-04-17-14-40-50@natsci.colostate.edu
DTSTAMP:20260417T144050
Description:About the Seminar:\nHybrid organic/inorganic semiconductors (HO
 IS) offer tremendous opportunities to control fundamental properties that 
 underpin energy technologies. While currently there are enormous worldwide
  efforts exploring\, exploiting and improving a narrow class of HOIS (lead
 -halide perovskites\, such as methylammonium lead iodide (MAPbI3))\, prima
 rily for photovoltaic (PV) applications\, an opportunity exists to transce
 nd this initial focus on PV research and seek deeper understanding and con
 trol of their fundamental properties. Inherent in these unique hybrid syst
 ems is the dichotomy between organic/molecular moieties and inorganic/exte
 nded systems.  As a result\, they exhibit properties that are not solely 
 a juxtaposition of the inorganic and organic sub-units\, but are instead t
 ruly emergent phenomena\, with the concomitant ability to control and desi
 gn new properties by judicious choice of inorganic and organic components.
  There is thus an opportunity\, as we gain understanding\, to design and d
 evelop new hybrid systems with exceptional functionalities that go beyond\
 , but yet are inspired by the MAPbI3 system. In this presentation I will d
 iscuss our studies of controlling the charge carrier dynamics\, light/matt
 er interactions\, and spin populations in these novel systems.\nAbout the 
 Speaker:\nMatthew C. Beard is a Senior Research Fellow at the National Ren
 ewable Energy Laboratory and is Director of the Center for Hybrid Organic 
 Inorganic Semiconductors for Energy (CHOISE) an Energy Frontier Research C
 enter funded by the Office of Science within the US. Department of Energy.
  He received his Ph.D. from Yale University in 2002. His research interest
  includes hot-carrier utilization (slowed hot-carrier cooling and multiple
  exciton generation)\, quantum dots and other reduced dimensional systems 
 for solar energy transduction\, photochemical energy conversion\, and the 
 use of ultrafast transient spectroscopies in tracking energy conversion pr
 ocesses. 4:00 pm
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