Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/24091

TitleImpact of composition and morphology on the optical properties of Si-NC/P3HT thin films processed from solution
Author(s)Rodrigues, F. D.
Cunha, Mara
Hilliou, L.
Rino, L.
Correia, M. R.
Busani, T.
Bernardo, Gabriel
Wiggers, H.
Filonovich, Sergej
Pereira, Ricardo
Issue date17-May-2013
PublisherSpringer
JournalApplied Physics A: Materials Science & Processing
Abstract(s)Blends of Si nanocrystals (Si-NCs) and organic semiconductors are promising materials for new optical and electronic devices processed from solutions. Here, we study how the optical properties of composite films containing Si-NCs and the organic semiconductor poly(3-hexylthiophene) (P3HT) are influenced by the composition and morphology resulting from different solution-processing parameters and different solvents used dichlorobenzene vs. chloroform). The optical spectra of the hybrid films are described using a simple phenomenological model, with which we can discern the contribution of each material in the films to the optical properties. From this analysis, we obtain quantitative information about the composition and morphology of the hybrid nanostructured films, which otherwise would be obtained from more demanding microscopy and spectroscopy techniques. For the case of the Si-NC/P3HT blend, we find that in films deposited from dichlorobenzene solutions the Si-NCs contribute sizably to light absorption.
TypeArticle
URIhttp://hdl.handle.net/1822/24091
DOI10.1007/s00339-012-7540-z
ISSN0947-8396
Peer-Reviewedyes
AccessOpen access
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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