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Communication Dans Un Congrès Année : 2017

Hybrid π-conjugated organosilica materials: semiconductors for the first fully covalent transistor or photovoltaic applications

Gilles Roche
  • Fonction : Auteur
Thérèse Gorisse
  • Fonction : Auteur
Damien Thuau
Konrad Wojciechowski
  • Fonction : Auteur
Iván Ramírez
  • Fonction : Auteur
Pierre Valvin
  • Fonction : Auteur
  • PersonId : 987631
Simon Clevers
Thomas Tjoutis
  • Fonction : Auteur
Sylvain Chambon
Moritz Riede
  • Fonction : Auteur
David Flot
  • Fonction : Auteur
Yves Geerts
  • Fonction : Auteur
Joël J. E. Moreau
  • Fonction : Auteur
  • PersonId : 841386
Snaith Henry J.
  • Fonction : Auteur
Olivier Dautel

Résumé

This communication will display the use of novel organosilica materials embedding π-conjugated moieties1 as semiconductors into various applications. For field effect transistors, the π-conjugated core chosen is [1]benzothieno[3,2-b][1]benzothiophene (BTBT)2, first functionalized with hydroxyl groups3 and then modified with hydrolysable and cross-linkable triethoxysilyl moieties. After polycondensation, this compound forms a hybrid material found to be a semiconductor and can be incorporated into field effect transistors. Taking advantage of the sol-gel chemistry involved here, we built Hybrid Field Effect Transistors that are fully cross-linked with covalent bonds. Molecules are cross-linked to each other, covalently bonded to the silicon oxide dielectric and also covalently bonded to the gold electrode thanks to the use of an appropriate surface modifier in between. This is the first report of fully covalent transistors. Those devices with modest mobilities show impressive resilience against polar, aliphatic and aromatics solvents (even under sonication). A solgel processable derivative of fullerene will also be described as promising interlayer for Perovskite n-i-p photovoltaic solar cells4.
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Dates et versions

hal-02526416 , version 1 (31-03-2020)

Identifiants

  • HAL Id : hal-02526416 , version 1

Citer

Gilles Roche, Thérèse Gorisse, Damien Thuau, Konrad Wojciechowski, Iván Ramírez, et al.. Hybrid π-conjugated organosilica materials: semiconductors for the first fully covalent transistor or photovoltaic applications. FPi13, Prof. H. Yan & Prof. B.Z. Tang, Jun 2017, Hongkong, China. ⟨hal-02526416⟩
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