The commission results of the scanning transmission X-ray microscopy at Taiwan Photon Source
Hung Wei Shiu1*, Hsiao-Tsu Wang2, Wan-Ting Chen1, Su-Ling Cheng1, Yao-Jane Hsu1,3, Chia-Hao Chen1, Der-Hsin Wei1, Chung-Li Dong2, Cheng-Hao Chuang2, Way-Faung Pong2
1Nano Science, National Synchrotron Radiation Research Center, Hsinchu, Taiwan
2Physics, Tamkang University, New Taipei City, Taiwan
3Photonics, National Cheng Kung University, Tainan, Taiwan
* Presenter:Hung Wei Shiu, email:hwshiu@nsrrc.org.tw
Scanning Transmission X-ray Microscopy (STXM) is globally recognized as one of the premier X-ray spectromicroscopy techniques, due to its versatility and exceptional imaging capabilities across various research fields. Its strengths lie in the capacity to precisely identify changes in chemical and electronic properties, making it invaluable for studies in chemistry, magnetism, materials science, and environmental research in nanometer-scaled spatial resolution. Additionally, its advanced in-situ capabilities enable comprehensive environmental control, including temperature management, gas flow regulation, electrochemical reaction, and magnetic field application, allowing real-time observation and analysis of reactive processes. These features make it an ideal tool for investigating complex material behaviors, especially in energy-related research.
The TPS 27A beamline is equipped with a unique monochromated system, the AM-PGM. This advanced system delivers ultra-high energy resolution and powerful photon flux, covering a broad energy range from 90 to 3000 eV. The STXM endstation was developed and constructed in collaboration with Tamkang University's Department of Physics, highlighting a successful partnership that combines expertise in research and scientific technology. Despite significant delays during the pandemic, the beamline reached a major milestone this year by achieving the first light at the STXM endstation. The initial commissioning phase is underway, focusing on optimizing the beamline's resolution using nitrogen and neon absorption spectra. Fitting the nitrogen absorption spectra achieved a resolving power of over 12,000.
The first results will include spatially resolved data obtained using the "Simen Star" methodology, providing detailed insights into the spatial distribution and chemical composition of the materials studied. In addition, preliminary findings on various energy materials, including batteries and catalysts, will be presented. Comprehensive details on the beamline's specifications, system performance, and initial experimental outcomes will also be shared.
Keywords: STXM, XAS, Synchrotron, Energy material