Quantum technology – Qubits and quantum emitters – Quantum transport of an excitation


Laurent Coolen, Zakarya Ouzit, Agnès Maître, Fu Feng, Nguyen Thu Loan

Semiconductor nanoplatelets can be synthesized with perfect thickness control and exhibit remarkable brightness and homogeneity properties. The smallest ones emit single photons and are all deposited horizontally, which allows a deterministic control of their emission direction and polarization. By playing with the ligands, we can assemble them in chains of hundreds of plates between which excitation transfers take place at the picosecond scale.



  • Benjamin Abécassis (ENS de Lyon)
  • Benoît Mahler (Institut Lumière Matière, Lyon)
  • Benoît Fleury (Institut Parisien de Chimie Moléculaire)
  • Benoît Dubertret (ESPCI)



  • ANR Foenics (2021-2024)



  • Fu Feng, Loan Nguyen, Michel Nasilowski, Brice Nadal, Benoit Dubertret, et al.. Consequence of shape elongation on emission asymmetry for colloidal CdSe/CdS nanoplatelets. Nano Research, Springer, In press, pp.1-10. ⟨10.1007/s12274-017-1926-3⟩. ⟨hal-01700922⟩
  • Fu Feng, Loan Nguyen, Michel Nasilowski, Brice Nadal, Benoît Dubertret, et al.. Probing the Fluorescence Dipoles of Single Cubic CdSe/CdS Nanoplatelets with Vertical or Horizontal Orientations. ACS photonics, American Chemical Society,, 2018, 5 ( 5), pp.1994-1999. ⟨10.1021/acsphotonics.7b01475⟩. ⟨hal-01777981⟩
  • Jiawen Liu, Lilian Guillemeney, Benjamin Abecassis, Laurent Coolen. Long Range Energy Transfer in Self-Assembled Stacks of Semiconducting Nanoplatelets. Nano Letters, American Chemical Society, 2020, ⟨10.1021/acs.nanolett.0c00376⟩. ⟨hal-02565031⟩
  • Jiawen Liu, Lilian Guillemeney, Arnaud Choux, Agnès Maitre, Benjamin Abécassis, et al.. Fourier-imaging of single self-assembled CdSe nanoplatelet chains and clusters reveals out-of-plane dipole contribution. ACS photonics, American Chemical Society,, 2020, 7 (10), pp.2825-2833. ⟨10.1021/acsphotonics.0c01066⟩. ⟨hal-02975054⟩