Design of novel applications such as perovskite solar cell or batteries is challenging because mechanisms driving the charge carriers are unclear. Real-time observation of structural and chemical changes helps to unravel the operating principles of such devices, and therefore opens a possibility to optimize their performance.
Dr. Kim from Korea Institute of Science and Technology investigates perovskite solar cells and batteries using nanoprobing combined with EBIC/EBAC in SEM. These techniques used together help to understand charge carrier dynamics in these novel materials and to localize electrical defects.
In semiconductor devices, EBIC signal of the junction structure is measured between the layers to investigate the defects and diffusion length.
In battery materials, nanoprobing combined with EBAC is used to visualize the spatial resistance difference.
Dr. Kim says: “Recently, I have set up the in situ/operando SEM using Imina Technologies’ nanoprobes to observe the morphology and structure changes during the charging/discharging process. These nanoprobers can be combined with different setups to provide valuable insights about various materials. As I support many researchers, I handle a wide variety of samples for different applications, which come in different shapes and sizes. Imina tools and their software are very intuitive, the probing is easy, and I feel very confident as a user.”
Contact us to learn about nano probing combined with EFA techniques for battery and solar cells research!