Three-Dimensional Electron Diffraction:A Revolutionary Technique for Structure Analysis of Nano-sized Minerals
Single-crystal X-ray diffraction(SCXRD)is the primary method for crystal structure determination,but it faces limitations at the nanoscale as it is not capable to meet the demand for microstructural analysis of nano-/micro-sized mineral crystals.In contrast,three-dimensional electron diffraction(3DED)has emerged as an effective technique for probing the crystal structures of materials at the micro-,sub-micro-,and nano-scale.Limitations of the SCXRD in resolving weak diffraction signals,analyzing crystals smaller than 200 nm,and identifying light elements can be overcome by using the 3DED.In recent years,the 3DED has been widely applied in researches of material science and biology,and is considered a transformative technology for nanocrystal structure determination.Although the application of this technique in Earth and planetary sciences is still in its infancy,the 3DED is poised to play a crucial role in future mineralogical researches.Furthermore,serial rotation electron diffraction(Serial RED)provides a high-effective and high-throughput solution for the phase and structure analysis of precious and micro weightted/sized extraterrestrial samples.These advanced electron diffraction techniques will undoubtedly be used to make significant contributions to our understanding of the natural world.
three-dimensional electron diffractionnano-sized mineralscrystal structure analysisrevolutionary technique
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