3 papers
physics.optics2026
Excited states engineering maximizes singlet generation by triplet fusion in conjugated systems
Alessandra Ronchi, Masashi Mamada, Michel Frigoli +1
Photon upconverters are anti Stokes emitters capable of generating photons with higher energy than those absorbed. This behavior can be achieved through different mechanisms, which…
cond-mat.mtrl-sci2022
Diffusion-free photon upconversion driven by intramolecular triplet-triplet annihilation in engineered conjugated chromophores
Sara Mattiello, Sara Mecca, Alessandra Ronchi +6
The photon upconversion based on sensitized triplet-triplet annihilation (sTTA-UC) is a spin-flip mechanism exploited to recover the energy of dark triplet states in conjugated sys…
physics.app-ph2020
High Photon Upconversion Efficiency with Hybrid Triplet Sensitizers by Ultrafast Hole-Routing in Electronic-Doped Nanocrystals
Alessandra Ronchi, Chiara Capitani, Graziella Gariano +5
Low power photon upconversion (UC) based on sensitized triplet-triplet annihilation (sTTA) is considered as the most promising upwards wavelength-shifting technique to enhance the…