Switching on 1.5 μm NIR Light in Erbium Doped CsPbCl3 Perovskite Nanocrystals

Min Zeng^a^,^b, Federico Locardi^b, Zeger Hens^b, Rik Van Deun^a, Flavia Artizzu^a

^aL3–Luminescent Lanthanide Lab, Department of Chemistry, Ghent University, Belgium, Belgium

^bPhysics and Chemistry of Nanostructures, Ghent University, Belgium, Belgium

Proceedings of Internet Conference for Quantum Dots (iCQD)

Online, Spain, 2020 July 14th - 17th

Organizers: Quinten Akkerman, Raffaella Buonsanti, Zeger Hens and Maksym Kovalenko

Poster, Min Zeng, 098
Publication date: 3rd July 2020

ePoster:

The particularly relevant Er³⁺ emission at 1.5 μm in the third telecommunication window, of high interest in silicon integrated photonics, has been so far largely neglected in view of the weak emission performance displayed by Er³⁺-doped CsPbCl₃ nanocrystals (NCs). Here, we report an effective strategy to boost the Er³⁺ 1.5 μm luminescence in CsPbCl₃ NCs by introducing an energy bridge: Yb³⁺ or Mn²⁺ ions, providing guidance for emission tuning in perovskite NCs.

References:

[1] Zeng, M.; Artizzu, F.; Liu, J.; Singh, S.; Locardi, F.; Mara, D.; Hens, Z.; Van Deun, R. ACS Appl. Nano Mater. 2020, 3, 5, 4699–4707

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