ANDREA LANFRANCHI

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Preventing solar heating is nowadays of paramount interest in energy savings and health preservation. For instance, in building thermalization solar heating consumes an excess of energy leading to harmful CO2 emissions, while in food and beverage packaging it may lead to variation of organoleptic properties or even health issues. The phenomenon...

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This study demonstrates the integration of a J-aggregate into all-polymer microcavities. J-aggregates are increasingly researched thanks to their peculiar optical properties characterized by sharp and intense absorbance and photoluminescence signals.1 To this end, we exploit a class of planar one-dimensional photonic crystals, known as...

This study explores the possibility of incorporating a J-aggregate emitter as an engineered defect into all-polymer microcavities (MCs) to enhance its emission properties. J-aggregates have unique optical properties with sharp absorbance and photoluminescence signals. The results show the effectiveness of poly(N-vinylcarbazole) – Aquivion®...

Mechanochromic materials exhibit color changes upon external mechanical stimuli, finding wide-ranging applications in colorimetric sensing, display technology, and anticounterfeiting measures. Many of these materials rely on fluorescence properties and therefore necessitate external optical or electrical excitation. However, for broader...

Controlling the radiative rate of emitters with 6 macromolecular photonic structures promises flexible devices with 7 enhanced performances that are easy to scale up. For instance, radiative rate enhancement empowers low-threshold lasers, while rate suppression affects recombination in photovoltaic and photochemical processes. However,...