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Dr. Bob C. Fitzmorris, Jonathan M. Patete, Jacqueline Smith, Xiomara Mascorro, Staci Adams, Prof. Stanislaus S. Wong and Prof. Jin Z. Zhang Ultrafast Transient Absorption Studies of Hematite Nanoparticles: The Effect of Particle Shape on Exciton Dynamics ChemSusChem 6

Version of Record online: 18 SEP 2013 | DOI: 10.1002/cssc.201300571

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Throw some shapes: Differently shaped hematite nanostructures, that is, nanocubes, nanorhomohedra, nanorice, and spheroidal nanoparticles. Initial transient absorption spectra for the four samples vary widely. Single-value decomposition global fitting is used to deconvolute the initial spectra into B-spectra. For all samples, the fast components have broader B-spectra than the slow components, indicating that the fast components of the decay involve multiple electronic transitions, or states that have broad electronic absorption spectra.

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