%0 Journal Article
%T Tuning of photoluminescence intensity and Fermi level position of individual single-walled carbon nanotubes by molecule confinement
%+ Laboratoire Charles Coulomb (L2C)
%+ Faculty of Physics [Vienna]
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM)
%+ Nanomaterials Research Institute
%+ Institute of Scientific and Industrial Research
%+ Universität Bremen
%+ Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN UMR 3685)
%A Chambard, Romain
%A Moreno-López, Juan Carlos
%A Hermet, Patrick
%A Sato, Yuta
%A Suenaga, Kazu
%A Pichler, Thomas
%A Jousselme, Bruno
%A Aznar, Raymond
%A Bantignies, Jean-Louis
%A Izard, Nicolas
%A Alvarez, Laurent
%< avec comité de lecture
%Z L2C:22-002
%@ 0008-6223
%J Carbon
%I Elsevier
%V 186
%P 423-430
%8 2022-01
%D 2022
%R 10.1016/j.carbon.2021.09.072
%Z Chemical SciencesJournal articles
%X Photoluminescence of single-walled carbon nanotubes is monitored at the individual scale by molecule encapsulation into their hollow core. Depending on the electronic character (electron donor or acceptor) of the confined molecule, enhancement or quenching of the photoluminescence intensity is demonstrated. This behavior is assigned to a charge transfer, evidenced by the shift of the Raman G-band, and a correlated Fermi level shift shown by photoemission experiments. Our experimental results are supported by DFT calculations. A consistent picture of the physical interactions taking place in the hybrid systems and their effects on the optical and electronic properties is given. Our results indicate that the electron affinity or ionization potential of the encapsulated molecules and the diameter of the nanotube are relevant parameters to tune the light emission properties of the hybrid systems at the nanoscale.
%G English
%L hal-03426915
%U https://hal.umontpellier.fr/hal-03426915
%~ CEA
%~ CNRS
%~ ENSC-MONTPELLIER
%~ ICG
%~ L2C
%~ PUBNIMBE
%~ INC-CNRS
%~ IRAMIS-NIMBE
%~ CEA-UPSAY
%~ UNIV-PARIS-SACLAY
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ TEST-HALCNRS
%~ UNIVERSITE-PARIS-SACLAY
%~ GS-ENGINEERING
%~ IRAMIS
%~ GS-CHIMIE
%~ GS-PHYSIQUE
%~ INSTITUT-SCIENCES-LUMIERE
%~ UM-2015-2021
%~ UM-EPE