Leonardo Sousa

Theoretical and computational photophysics/photochemistry. Tenure track Researcher @DTUEnergy.

[Leonardo Sousa @leoesousa]

@Naoya_Aizawa Congratulations!

[Leonardo Sousa @leoesousa]

@ACSPublications

[Leonardo Sousa @leoesousa]

Our paper on singlet–singlet annihilation (SSA) in organic materials, a collaboration with colleagues from University of Brasilia, is the cover of the first 2026 issue of The Journal of Physical Chemistry C.

[Leonardo Sousa @leoesousa]

For more details, check out the paper:

Electronic-Structure Effects on the Exciton Annihilation Radius in Organic Materials

https://t.co/niPAwxEGPN

[Leonardo Sousa @leoesousa]

The work shows how a combination of very low rISC and non-radiative triplet decay rates allows for the triplet-to-singlet conversion to take place with appreciable yield in a host-guest system, resulting in fluorescent-derived afterglow in the tenths-of-a-second timescale.

[Leonardo Sousa @leoesousa]

Congratulations to Fernando Bueno on the sucessful completion of his PhD at the University of Brasília, which I had the pleasure of co-supervising together with Prof. Pedro Henrique. @ElecMol_Lab_UnB

[Leonardo Sousa @leoesousa]

Part of his research on the theoretical aspects of the triplet-to-singlet exciton conversion mechanism and its role in organic afterglow materials has been published in the Journal of Materials Chemistry C. (https://t.co/O4HEvvD9c1)

[Piotr de Silva @Piotr_deSilva]

I have a PhD opening for modeling of organic flow battery electrolytes (starting early 2026). Application deadline: 19th Oct. Details at https://t.co/fDF4jIzCN1

[Piotr de Silva @Piotr_deSilva]

Now published in J. Mater. Chem. C as part of a themed collection on “Perspective on the technologies of OLEDs”. https://t.co/VeuX8u0GMZ

[Leonardo Sousa @leoesousa]

@Takephos @JST_ASPIRE @ISMSC2025 Thank you once again for this great workshop!

[Leonardo Sousa @leoesousa]

@angraofficial @Takephos an opportunity for you!

[Piotr de Silva @Piotr_deSilva]

It's been a while since my paper on singlet-triplet inversion. Now we have something more to say about it. Check the preprint: https://t.co/YKvIHgEqgB

[Leonardo Sousa @leoesousa]

@holland_tom Nice Santa Methica sign in the background.

[Piotr de Silva @Piotr_deSilva]

I'm hiring two PhD students in atomic-scale modelling of organic flow battery materials. The positions are within an EU-funded MSCA Doctoral Network PREDICTOR. Application deadline: 8 November 2024. Details at https://t.co/y5KixHXYDN

[Youhei Takeda @Takephos]

Our new paper on the #TADF properties of dibenzophenazine-cored phenazaborines has been out @JPhysChem C! EL colors are tunable with fluoride. It is collaborative work with Przemyslaw Data, @leoesousa , and @Piotr_deSilva 🇯🇵🇵🇱🇩🇰 !

https://t.co/L2xz6uJABF

[The Journal of Physical Chemistry @JPhysChem]

Nuclear ensemble simulations show that solvent can change reverse intersystem crossing rates by orders of magnitude and determine the thermally activated delayed fluorescence (TADF) mechanism in a carbene-copper emitter @LaureJdt @leoesousa @Piotr_deSilva
https://t.co/1flUyiP5om

[Angewandte Chemie @angew_chem]

Anion-Responsive Colorimetric and Fluorometric Red-Shift in Triarylborane Derivatives: Dual Role of Phenazaborine as Lewis Acid and Electron Donor (Youhei Takeda and co-workers) @Takephos @Piotr_deSilva @leoesousa @osaka_univ @osaka_univ_e #OpenAccess https://t.co/sjCcyGPPtt