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SUMMARY:Transient Absorption Microscopy: Seeing (Charge Carriers) is Believ
 ing
LOCATION:Virtual Seminar
TZID:America/Denver
DTSTART:20201112T160000
UID:2026-04-18-19-49-40@natsci.colostate.edu
DTSTAMP:20260418T194940
Description:Literature Seminar\n\nPerovskite thin films hold remarkable pro
 mise for solar energy conversion applications due to their efficient long-
 range carrier transport. To maximize solar conversion efficiency\, the mec
 hanisms of carrier extraction\, transport\, and decay must be understood. 
 In the presented study1\, Transient Absorption Microscopy (TAM) is used to
  map carrier generation\, diffusion\, and recombination within methylammon
 ium lead triiodide perovskite thin films. The TAM images directly visualiz
 e heterogenous carrier generation and transport\, while the corresponding 
 diffusion model quantifies the effects of higher-order recombination. Vari
 ations of diffusion coefficients within different sample regions suggests 
 local crystal morphologies affect carrier generation and transport and hig
 hlight that selective morphology tailoring of perovskite films is required
  to maximize carrier extraction for solar energy conversion.\n\n1. Guo\, Z
 .\, Manser\, J. S.\, Wan\, Y.\, Kamat\, P. V.\, &amp\; Huang\, L. (2015). 
 Spatial and temporal imaging of long-range charge transport in perovskite 
 thin films by ultrafast microscopy. Nat. Commun.\, 6\, 4–11. https://d
 oi.org/10.1038/ncomms8471\n\n&nbsp\;\n\nClick here for Zoom Link 4:00 pm
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