Speaker
Description
Carbon based materials play crucial roles across environmental, industrial, and cosmic domains. In astrophysics, these particles are fundamental to interstellar dust, affecting light absorption, scattering, and emission processes essential for star formation, planetary evolution, and the cosmic dust cycle. Conversely, carbonaceous aerosols produced from the incomplete combustion of hydrocarbons contributes to global warming and air pollution, underscoring its significant environmental impact. In laboratory settings, carbonaceous nanoparticles open exciting possibilities in materials science and nanotechnology. Their unique optical properties, including strong light absorption across a broad spectrum, tunable fluorescence, and high scattering capabilities, make them promising candidates for next-generation materials. Traditional techniques like chemical analysis or imaging are effective for deposited samples, but deposition may lead to structural modifications. This talk will explore how advanced light sources in Lund enable in-depth investigation of carbonaceous materials in the aerosol form, revealing their complex properties and formation processes, and in solid form, with careful consideration to minimize sampling and measurement artifacts.