Charge Transfer and Tunable Ambipolar Effect Induced by Assembly of Cu (II) Binuclear Complexes on Carbon Nanotube Field Effect Transistor Devices

Gurvan Magadur (1) , Jean‐sébastien Lauret (2) , Gaëlle Charron (1) , Fatima Bouanis (3) , Evgeny Norman (3) , Vincent Huc (1) , Costel Sorin Cojocaru (3) , S. Goìmez-Coca (4) , E. Ruiz (4) , Talal Mallah (1)

1 ICMMO - Institut de Chimie Moléculaire et des Matériaux d'Orsay
2 LPQM - Laboratoire de Photonique Quantique et Moléculaire
3 NanoMaDe
4 Institut de Recerca de Química Teorica i Computacional

Assembly of paramagnetic Cu2 complexes with a Schiff base scaffold possessing extended electron delocalization together with a quasi-planar structure onto carbon nanotubes induces a diameter-selective charge transfer from the complex to the nanotubes leading to an interestingly large and tunable ambipolar effect. We used complementary techniques such as electron paramagnetic resonance, absorption spectroscopy, and photoluminescence to ensure the success of the assembly process and the integrity of the complex in the nanohybrid. We carried out density functional theory type calculations to rationalize the experimental results,evidencing the selective enhanced interaction of the metal complexes with one type of nanotube.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Gurvan Magadur, Jean‐sébastien Lauret, Gaëlle Charron, Fatima Bouanis, Evgeny Norman, et al.. Charge Transfer and Tunable Ambipolar Effect Induced by Assembly of Cu (II) Binuclear Complexes on Carbon Nanotube Field Effect Transistor Devices. Journal of the American Chemical Society, 2012, 134 (18), pp.7896--7901. ⟨10.1021/ja301362r⟩. ⟨hal-00793937⟩