The use of dye photosensibilization to control light induced ultrafast phase transition of VO2 films for terahertz applications

摘要

In this work, we the study the possibility of controlling the temperature of ultrafast light induced insulator-metal phase transition in VO2 films by photosensibilization with thin layer of organic dyes which can directly inject photoelectrons into the VO2 film triggering a photoelectron-assisted phase transition.