Spectromicroscopy of Nanoscale Materials in the Tender X-Ray Regime Enabled by a High Efficient Multilayer-Based Grating Monochromator
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The combination of near edge X-ray absorption spectroscopy with nanoscale X-ray imaging is a powerful analytical tool for many applications in energy technologies, catalysis, which are critical to combat climate change, as well as microelectronics and life science. Materials from these scientific areas often contain key elements, such as Si, P, S, Y, Zr, Nb, and Mo as well as lanthanides, whose X-ray absorption edges lie in the so-called tender photon energy range 1.5–5.0 keV. Neither conventional grazing incidence grating nor crystal monochromators have high transmission in this energy range, thereby yielding the tender photon energy gap. To close this gap, a monochromator setup based on a multilayer coated blazed plane grating and plane mirror is devised. The measurements show that this novel concept improves the photon flux in the tender X-ray regime by two-orders-of-magnitude enabling previously unattainable laboratory and synchrotron-based studies. This setup is applied to perform nanoscale spectromicroscopy studies. The high photon flux provides sufficient sensitivity to obtain the electronic structure of Mo in platinum-free MoNi4 nanoparticles for electrochemical energy conversion. Additionally, it is shown that the chemical bonding of nano-structures in integrated circuits can be distinguished by the electronic configuration at the Si-K edge.
Details
Original language | English |
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Article number | 2201382 |
Number of pages | 9 |
Journal | Small methods |
Volume | 7 |
Issue number | 1 |
Publication status | Published - 20 Jan 2023 |
Peer-reviewed | Yes |
External IDs
PubMed | 36446642 |
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WOS | 000891971900001 |
Keywords
Research priority areas of TU Dresden
Sustainable Development Goals
ASJC Scopus subject areas
Keywords
- blazed multilayer grating, catalysts, dielectrics, electrochemical energy conversion, microelectronics, tender X-ray energy range, X-ray spectromicroscopy, Blazed multilayer grating, Catalysts, Electrochemical energy conversion, Dielectrics, Microelectronics