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http://dx.doi.org/10.9729/AM.2018.48.4.122

Transmission Electron Microscopy Specimen Preparation for Two Dimensional Material Using Electron Beam Induced Deposition of a Protective Layer in the Focused Ion Beam Method  

An, Byeong-Seon (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Shin, Yeon Ju (Cooperative Center for Research Facilities, Sungkyunkwan University)
Ju, Jae-Seon (Cooperative Center for Research Facilities, Sungkyunkwan University)
Yang, Cheol-Woong (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Publication Information
Applied Microscopy / v.48, no.4, 2018 , pp. 122-125 More about this Journal
Abstract
The focused ion beam (FIB) method is widely used to prepare specimens for observation by transmission electron microscopy (TEM), which offers a wide variety of imaging and analytical techniques. TEM has played a significant role in material investigation. However, the FIB method induces amorphization due to bombardment with the high-energy gallium ($Ga^+$) ion beam. To solve this problem, electron beam induced deposition (EBID) is used to form a protective layer to prevent damage to the specimen surface. In this study, we introduce an optimized TEM specimen preparation procedure by comparing the EBID of carbon and tungsten as protective layers in FIB. The selection of appropriate EBID conditions for preparing specimens for TEM analysis is described in detail.
Keywords
2-D materials; Focused ion beam (FIB); Electron beam induced deposition (EBID);
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