Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/2564
Título: Synthesis, optical and electrochemical properties of perylenes dyes for solar cells applications
Autor: Torres, Erica
Sequeira, S.
Berberan-Santos, M. N.
Brites, Maria João
Palavras-chave: Solar cells
Electrochemical properties
Optical properties
Dyes
Perylenes
Data: 2014
Citação: Torres, E.; Sequeira, S.; Berberan-Santos, M.N.; Brites, M.J. - Synthesis, optical and electrochemical properties of perylenes dyes for solar cells applications. In: HOPV2014 - 6th International Conference on Hybrid and Organic Photovoltaics, Book of Abstracts, Lausanne, Switzerland, 11-14 May, 2014, 1 p.
Resumo: Perylene monoimides or monoanhydrides are being intensively investigated as sensitizers in DSSCs. Keeping only one acceptor group, i.e. imide or anhydride, and introducing a donor group in the 9-position (such as diarylamine) proved to be important in order to obtain a favorable orbital partitioning strength and dipole moment of perylene compounds for DSSCs [1]. One way to control optical and electrochemical properties of perylenes dyes is achieved by functionalizing periand bay positions of perylene core with different substituents. In a simplified view, the peri groups coarsely tune the spectroscopic and electrochemical properties whereas the bay functional groups provide an additional fine tuning [2,3]. Here we report the design and synthesis of new perylene dyes (Figure 1) comprising: (1) a 4-alkoxyphenylamino moiety in the 9-position as a strong donating group, (2) a cyanoacrylic acid as electron acceptor and anchoring group and (3) a triple bond as short and rigid linker between perylene core and the acceptor group [4]. The photophysical properties (i.e. absorption and emission spectra, absorption extinction coefficients, fluorescence quantum yields and lifetime measurements) and electrochemical properties of the new perylene dyes were investigated and all results will be presented and discussed.
URI: http://hdl.handle.net/10400.9/2564
Versão do Editor: http://www.nanoge.org/HOPV14/index.php
Aparece nas colecções:ES - Resumos em livros de actas

Ficheiros deste registo:
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Abstract HOPV2014(MJBrites)_P31.pdf325,4 kBAdobe PDFVer/Abrir
HOPV2014 - Poster (MJBrites).pdf386,06 kBAdobe PDFVer/Abrir


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