期刊
NANO LETTERS
卷 20, 期 11, 页码 8326-8331出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c03477
关键词
Nanowire; X-ray beam induced current; nano focused X-rays; detector
类别
资金
- Rontgen-Angstrom Cluster
- NanoLund
- Marie Sklodowska Curie Actions
- Project INCA [600398]
- Swedish Research Council [2015-00331]
- European Research Council (ERC) [801847]
- Swedish Research Council [2015-00331] Funding Source: Swedish Research Council
- European Research Council (ERC) [801847] Funding Source: European Research Council (ERC)
Nanoscale X-ray detectors could allow higher resolution in imaging and diffraction experiments than established systems but are difficult to design due to the long absorption length of X-rays. Here, we demonstrate X-ray detection in a single nanowire in which the nanowire axis is parallel to the optical axis. In this geometry, X-ray absorption can occur along the nanowire length, while the spatial resolution is limited by the diameter. We use the device to make a high-resolution 3D image of the 88 nm diameter X-ray nanofocus at the Nanomax beamline, MAX IV synchrotron, by scanning the single pixel device in different planes along the optical axis. The images reveal fine details of the beam that are unattainable with established detectors and show good agreement with ptychography.
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