High-speed mapping of surface charge dynamics using sparse scanning Kelvin probe force microscopy.

ABSTRACT: Unraveling local dynamic charge processes is vital for progress in diverse fields, from microelectronics to energy storage. This relies on the ability to map charge carrier motion across multiple length- and timescales and understanding how these processes interact with the inherent material heterogeneities. Towards addressing this challenge, we introduce high-speed sparse scanning Kelvin probe force microscopy, which combines sparse scanning and image reconstruction. This approach is shown to enable sub-second imaging (>3 frames per second) of nanoscale charge dynamics, representing several orders of magnitude improvement over traditional Kelvin probe force microscopy imaging rates. Bridging this improved spatiotemporal resolution with macroscale device measurements, we successfully visua

SUBMITTER: Checa M 

PROVIDER: S-EPMC10632481 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature