CAJ | 학술논문

纳米材料的化学组分及含量影响其光、电、声、热、磁等物理性能,电子显微分析是表征纳米晶体化学组分的重要方法之一.本文综述了X-射线能谱(EDS)、X-射线波谱(WDS)、电子能量损失谱(EELS)和选区电子衍射(SAED)等现代电子显微分析技术在表征纳米晶体化学组分、形貌、尺寸和结构等方面的应用及其研究进展,并比较了这些分析方法存在的差异,提出了其应用中存在的不足及今后的研发方向.
납미재료적화학조분급함량영향기광、전、성、열、자등물이성능,전자현미분석시표정납미정체화학조분적중요방법지일.본문종술료X-사선능보(EDS)、X-사선파보(WDS)、전자능량손실보(EELS)화선구전자연사(SAED)등현대전자현미분석기술재표정납미정체화학조분、형모、척촌화결구등방면적응용급기연구진전,병비교료저사분석방법존재적차이,제출료기응용중존재적불족급금후적연발방향.
The chemical compositions and their content of nanomaterials have important influence on their physical properties with respect to the optics, electrics, acoustics, calorifics, magnetism and so on. Electron microanalysis was one of important methods to characterize chemical composition of nanocrystallites. This paper reviewed the latest application and progress of modern electron microanalysis techniques such as energy-dispersive X-ray spectroscopy (EDS), wavelength-dispersive X-ray spectroscopy (WDS), electron energy loss spectroscopy (EELS) and selected area electron diffraction (SAED) in the characterization of chemical composition, morphology, size and phase structure of nanocrystallites. The differences among these analytic methods were comparatively discussed. Their disadvantages in the application and developing direction in the future were also indicated.