Covalent incorporation of diphenylanthracene in oxotriphenylhexanoate organogels as a quasi-solid photon upconversion matrix

Abstract

Note: This paper is part of the JCP Special Topic on Up-and Down-Conversion in Molecules and Materials.

Diphenylanthracene Dimers for Triplet–Triplet Annihilation Photon Upconversion: Mechanistic Insights for Intramolecular Pathways and the Importance of Molecular Geometry

“…While these results are interesting on their own, one must consider in what settings intra-UC is anticipated to be of importance. As solid-state solutions are a desirable path moving forward, it is in the context of restricted molecular diffusion these results must be interpreted. ,− With respect to this, it is improbable that the TETA mechanism will be active in future solid-state systems where interactions between multichromophoric annihilators are hampered. These implications are strengthened by the results from the study by Dzebo et al, where large DPA annihilator frameworks showed better UC performance than DPA when put inside a rigid polymer matrix .…”

UV-Visible radiation modulation abilities of photon up-converting nanocapsules integrated with an oscillatory reaction

“…In addition, TTET and TTA processes can be inhibited by the presence of O 2 that quenches the triplet excited states. 10 An important step forward in the application of TTA-UC systems in real devices under air-equilibrated conditions is the incorporation of the antenna and the emitter pair into protecting environments, [12][13][14][15] preserving the inter-chromophoric distances necessary to make efficient bimolecular processes. Therefore, the encapsulation of the organic chromophores presents multiple advantages.…”

Extracting accurate information from triplet–triplet annihilation upconversion data with a mass-conserving kinetic model

“…S17-S19, ESI †). The only literature systems we examined for which our model could not fit the TTA-UC data were gels 41,42 (Fig. S20, ESI †), and TTA-UC devices.…”