Zhengkang Qu is a final-year PhD student in Physics in Cavendish Laboratory. His research mainly focuses on the spectroscopic characterization of condensed-matter systems. He completed his bachelor’s in science degree in 2020 at Nanjing University, major in Physics. His undergraduate research uses Ultrafast spectroscopy to study the exciton dynamics in perovskite nanocrystals. Then he finished his MPhil in Physics at University of Cambridge in 2021. Now he is working on using exotic optical techniques as well as algorithms to analyze the charge transport properties of organic semiconductors.