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Excitons, Disorder, and Nonequilibrium Transport in Hybrid Semiconductor Nanomaterials

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Structure, surface chemistry, and energetic disorder can dramatically affect excited state dynamics in low-dimensional systems. Using a combination of ultrafast laser spectroscopy, time-resolved optical microscopy, and kinetic modeling, I will show how these effects manifest in assemblies of colloidal quantum dots (QD) and 2D halide perovskites. In particular, I will discuss the impact of nonequilibrium population dynamics on excited state transport phenomena and the emergence of extraordinary vibrational and thermal phenomena in hybrid organic-inorganic structures.

This talk is part of the Optoelectronics Group series.

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