Single photon emission from graphene quantum dots at room temperature

Abstract : In the field of condensed matter, graphene plays a central role as an emerging material for nanoelectronics. Nevertheless, graphene is a semimetal, which constitutes a severe limitation for some future applications. Therefore, a lot of efforts are being made to develop semiconductor materials whose structure is compatible with the graphene lattice. In this perspective, little pieces of graphene represent a promising alternative. In particular, their electronic, optical and spin properties can be in principle controlled by designing their size, shape and edges. As an example, graphene nanoribbons with zigzag edges have localized spin polarized states. Likewise, singlet-triplet energy splitting can be chosen by designing the structure of graphene quantum dots. Moreover, bottom-up molecular synthesis put these potentialities at our fingertips. Here, we report on a single emitter study that directly addresses the intrinsic properties of a single graphene quantum dot. In particular, we show that graphene quantum dots emit single photons at room temperature with a high purity, a high brightness and a good photostability. These results pave the way to the development of new quantum systems based on these nanoscale pieces of graphene
Document type :
Preprints, Working Papers, ...
Complete list of metadatas

Cited literature [29 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-01722723
Contributor : Serge Palacin <>
Submitted on : Monday, March 5, 2018 - 9:00:44 AM
Last modification on : Sunday, March 31, 2019 - 1:36:23 AM
Long-term archiving on : Wednesday, June 6, 2018 - 2:04:07 PM

File

arXiV1802.09870.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : cea-01722723, version 1
  • ARXIV : 1802.09870

Citation

S. Zhao, J. Lavie, L. Rondin, L. Orcin-Chaix, C. Diederichs, et al.. Single photon emission from graphene quantum dots at room temperature. 2018. ⟨cea-01722723⟩

Share

Metrics

Record views

220

Files downloads

142