February 28, 2026 to March 6, 2026
Europe/Berlin timezone

Nanographenes as single quantum emitters

Not scheduled
20m
Invited Talk

Description

Nanographenes synthesized by bottom-up chemistry are tunable emitters with promises in optoelectronic and quantum technologies. Recent investigations have classified them as stable and bright single-photon sources [1-4]. The next step towards using nanographenes as quantum emitters is to reach a lifetime-limited linewidth. Inspired by pioneering works on small organic molecules [6], we designed a new guest-host system to decouple the nanographene from its local environment [7]. In addition, we also test hBN as a substrate for Nanographenes. This presentation will showcase our recent results on the low-temperature spectroscopy of new nanographenes [5], either embedded in a novel molecular crystal host [7] or deposited on hBN [8].

References
[1] Levy-Falk, Hugo, et al. physica status solidi (b) (2023).
[2] S. Zhao et al, Nature Communications, 9, 3470 (2018)
[3] T. Liu et al, Nanoscale, 14, 3826 – 3833 (2022)
[4] T. Liu et al, Journal of Chemical Physics 156, 104302 (2022)
[5] D. Medina-Lopez et al, Nature Communications 14, 4728 (2023)
[6] WP. Ambrose et al J. Chem. Phys. 95 (10), 7150–7163 (1991)
[7] Huynh Thanh Trung et al, in preparation
[8] S. Sarkar et al, in preparation

Authors

Dr Thanh Trung Huynh (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Dr Suman Sarkar (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Mrs Océane Capelle (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Mr Sébastien Quistrebert (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Dr Cynthia Banga-Kpakao (LICSEN, NIMBE, CEA, Paris-Saclay University, Gif-sur-Yvette, FR) Dr Nikos Fayard (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Dr Elsa Cassette (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR) Dr Stéphane Campidelli (LICSEN, NIMBE, CEA, Paris-Saclay University, Gif-sur-Yvette, FR) Prof. Jean-Sébastien Lauret (Université Paris-Saclay, ENS Paris-Saclay, CentraleSupélec, CNRS, LuMIn, Orsay, FR)

Presentation materials

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