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SUMMARY:Tunability and Optoelectric Emission Properties of Lead-free Solid-
 State Materials
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20211105T160000
UID:2026-04-17-16-04-31@natsci.colostate.edu
DTSTAMP:20260417T160431
Description:Literature Seminar:\n\nLight emitting devices such as LED displ
 ays and white light emitting headlights rely on light emitting materials t
 o function. Solid state emitters are also being investigated for their pot
 ential for development of qubits in quantum information science. While hyb
 rid lead halide perovskites are highly tunable and show unique intrinsic w
 hite light emission\, the lead content in these materials leads to poor ai
 r stability and toxicity. Different emission mechanisms can be used to tun
 e the structures of solid-state materials to develop non-toxic and earth a
 bundant light emitting materials. In this talk\, a survey of different mec
 hanisms for emission in the solid state and how materials may be tuned to 
 manipulate them will be given. In the primary literature\, blue emission i
 n the all inorganic material K2CuCl3\, stems from a self-trapped exciton (
 STE) localized on the [CuX3]2- chains. The emission profiles of K2CuCl3 an
 d its congener K2CuBr3 will be discussed\, along with the tunability of th
 ese materials as well as the tunability of STEs. 4:00 pm
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