Absorption Spectroelectrochemistry on Mixed Perylenediimide-Based Self-Assembled Monolayers: Non-Linear Dependence of Absorbance versus Surface Coverage - Université d'Angers Accéder directement au contenu
Article Dans Une Revue ChemElectroChem Année : 2017

Absorption Spectroelectrochemistry on Mixed Perylenediimide-Based Self-Assembled Monolayers: Non-Linear Dependence of Absorbance versus Surface Coverage

Sihame Bkhach
  • Fonction : Auteur
Olivier Alévêque
Yohann Morille
Tony Breton
Piétrick Hudhomme
Christelle Gautier
Eric Levillain

Résumé

The study of mixed self‐assembled monolayers of perylenediimide and hexanethiol by cyclic voltammetry and absorption spectroelectrochemistry shows a non‐linearity of absorbance maxima as a function of the surface coverage. This surprising result could be supported by an increase in the average tilt angle at low coverage, suggesting that the dilution of redox species through an alkanethiol would induce a change of the orientation of immobilized chromophores and, therefore, a modification of the optical properties of the monolayer.
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hal-02525068 , version 1 (30-03-2020)

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Sihame Bkhach, Olivier Alévêque, Yohann Morille, Tony Breton, Piétrick Hudhomme, et al.. Absorption Spectroelectrochemistry on Mixed Perylenediimide-Based Self-Assembled Monolayers: Non-Linear Dependence of Absorbance versus Surface Coverage. ChemElectroChem, 2017, 4 (3), pp.601-606. ⟨10.1002/celc.201600770⟩. ⟨hal-02525068⟩
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