Investigation of the relationship between porosity and luminescent properties of porous silicon

Abstract

In this work we obtained porous silicon with different porosity by electrochemical etching and studied their photoluminescence. Two well-known photoluminescence mechanisms of porous silicon related to the composition and morphology of the surface have been discovered, and it has been established at what porosity values they prevail. It is shown that an increase in the porosity index leads to an increase in the intensity of photoluminescence.

Synthesis and characterisation of new coordination polymers by combining 2-pyridyl oximes or alcohols with functionalised terephthalic acid analogues

“…For instance, CPs that combine porosity with magnetism and/or photoluminescence can be used in theranostic applications for the diagnosis and treatment of diseases, as MRI contrast agents and magnetism-based sensors, and in the medical device industry, 9–13 while in the case of photoluminescence, porosity can affect the emission properties of a photoluminescent material, allowing for tailored emission wavelengths, intensities, and lifetimes. 14–16…”