Photochemistry and Photophysics

摘要

Photochemical and photo- physical phenomena are involved in all life and related processes; everyday examples include photosyn- thesis, the degradation of plastics, the formation of vitamin D by sunlight, the use of darkened glass in medicine bottles to protect the drug from photodegradation, and so forth. Photochemistry and photophysics form a modern science, which studies the interaction between light and matter when radiation is absorbed by atoms or molecules. It overlaps with several disciplines, including chemistry, physics, materials science, etc. Scientists in the field aim to gain more knowledge and a deeper understanding of the photochemistry and photophysics of all kinds of processes, ranging from the study of living systems to academic research topics and to artificial devices and products. There is particular interest in and research efforts towards efficiently converting sunlight into clean and sustainable energy, and in developing workable devices for applying photochemical and photophysical processes in information technology.