Designing All‐Photonic Molecular Analogs for Electrical Components: A Reprogrammable Luminescent Filter Based on Ln3+ Ions

Abstract

AbstractThe increasing demand for computing power and downscaling is reaching the limits of the current lithographic methods, further precluding the shrinkage of the silicon chips using state‐of‐the‐art top‐down approaches. Moreover, the current chip shortage exposes the excessive world dependence on silicon, stressing the need for silicon‐free computing technologies, preferably operating at the molecular level. Here, a Eu3+/Tb3+ co‐doped organic‐inorganic di‐ureasil hybrid is used to demonstrate an illustrative example of an all‐photonic device based on the emission temporal dynamics of the Eu3+ and Tb3+ ions. An all‐photonic approach for temperature‐reprogrammable change from a low‐pass filter to a high‐pass filter is reported, showing a firm step toward the design and development of molecular analogs of conventional circuit electrical passive components.