期刊
ADVANCED MATERIALS
卷 26, 期 46, 页码 7747-7763出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201304511
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资金
- European Research Council [227711]
- German Federal Ministry of Education and Research [13 N 9881]
- EPSRC [EP/I022562/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I022562/1] Funding Source: researchfish
Coherent X-ray diffraction imaging (CDI) has emerged in the last decade as a promising high resolution lens-less imaging approach for the characterization of various samples. It has made significant technical progress through developments in source, algorithm and imaging methodologies thus enabling important scientific breakthroughs in a broad range of disciplines. In this report, we will introduce the principles of forward scattering CDI and Bragg geometry CDI (BCDI), with an emphasis on the latter. BCDI exploits the ultra-high sensitivity of the diffraction pattern to the distortions of crystalline lattice. Its ability of imaging strain on the nanometer scale in three dimensions is highly novel. We will present the latest progress on the application of BCDI in investigating the strain relaxation behavior in nanoscale patterned strained silicon-on-insulator (sSOI) materials, aiming to understand and engineer strain for the design and implementation of new generation semiconductor devices.
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