Browsing Τμήμα Χημείας / Department of Chemistry by Author "Silva, C."
Now showing items 1-6 of 6
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Article
Analysis of the excited-state absorption spectral bandshape of oligofluorenes
Hayes, Sophia C.; Silva, C. (2010)We present ultrafast transient absorption spectra of two oligofluorene derivatives in dilute solution. These spectra display a photoinduced absorption band with clear vibronic structure, which we analyze rigorously using ...
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Article
Charge generation in inorganic/organic photovoltaic blends
Westenhoff, S.; Hayes, Sophia C.; Greenham, N. C.; Silva, C. (2004)We apply ultrafast spectroscopy to investigate charge generation kinetics in blends of semiconducting polymers and cadmium selenide nanocrystals with photovoltaic applications. The rate is limited by diffusion of the primary ...
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Book Chapter
Charge Transfer Excitons in Supramolecular Semiconductor Nanostructures
Glowe, J. -F; Perrin, M.; Beljonne, D.; Karsenti, L.; Hayes, Sophia C.; Gardebien, F.; Silva, C. (wiley, 2010)
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Article
Charge-transfer excitons in strongly coupled organic semiconductors
Glowe, J. -F; Perrin, M.; Beljonne, D.; Hayes, Sophia C.; Gardebien, F.; Silva, C. (2010)Time-resolved and temperature-dependent photoluminescence measurements on one-dimensional sexithiophene lattices reveal intrinsic branching of photoexcitations to two distinct species: self-trapped excitons and dark ...
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Article
Direct observation of ultrafast long-range charge separation at polymer-fullerene heterojunctions
Provencher, F.; Bérubé, N.; Parker, A. W.; Greetham, G. M.; Towrie, M.; Hellmann, C.; Côté, M.; Stingelin, N.; Silva, C.; Hayes, Sophia C. (2014)In polymeric semiconductors, charge carriers are polarons, which means that the excess charge deforms the molecular structure of the polymer chain that hosts it. This results in distinctive signatures in the vibrational ...
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Article
Introduction
Banerji, N.; Hayes, Sophia C.; Silva, C. (2014)