Author:
Chen Ying,Chou Tzu-Chieh,Fang Ching-Hsing,Lu Cheng-Yi,Hsiao Chien-Nan,Hsu Wei-Ting,Chen Chien-Chun
Abstract
AbstractElectron ptychography has emerged as a popular technology for high-resolution imaging by combining the high coherence of electron sources with the ultra-fast scanning electron coil. However, the limitations of conventional pixelated detectors, including poor dynamic range and slow data readout speeds, have posed restrictions in the past on conducting electron ptychography experiments. We used the Gatan STELA pixelated detector to capture sequential diffraction data of monolayer two-dimensional (2D) materials for ptychographic reconstruction. By using the pixelated detector and electron ptychography, we demonstrate the observation of the radiation damage at atomic resolution in Transition Metal Dichalcogenides (TMDs).
Funder
National Science and Technology Council
Ministry of Education
Publisher
Springer Science and Business Media LLC