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While recent years have heightened interest in technologies for resolving environmental challenges that can help bring the global environment back within safe planetary boundaries, including devices with ultra-low power consumption and catalysts that can offer benefits in applications such as hydrogen production, the transformation of CO2 into a resource, and the decomposition of plastics, the design of high-performance materials and devices requires understanding of the electric and magnetic fields that underly the manifestation of these functions.
Hitachi has developed electron microscopy techniques for the atomic-scale observation of these phenomena in which electron holography plays a key role. In recent years, this has also included the use of digital technologies to perform observations that would not be possible using hardware on its own.
This article describes three such applications, namely measurement of the electric charge on catalyst nanoparticles, automatic nanoparticle measurement, and the observation of lattice plane magnetic fields.
Read More (Hitachi Review website)
