Abstract
The fabrication of nanodevices on the delicate membrane window of the TEM (transmission electron microscopy) chip has the risk of breakage failure, limiting in-depth research in this area. This work proposed a methodology to address this issue, enabling secure in-situ transmission electron microscopic observation of many devices and materials that would otherwise be difficult to achieve. Combining semi-custom TEM chip design and front-side protected release technology, a variety of nanodevices were successfully fabricated onto the window membrane of the TEM chip and studied in situ. Moreover, the pressure tolerance of window membrane was investigated and enhanced with a reinforcing structure. As an example of typical applications, MoS2 devices on the TEM chip have been fabricated and electron beam-induced gate modulation and irradiation damage effects, have been demonstrated.
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This work was supported by the National Key Research and Development Program of China (Grant No. 2016YFA0200802), and the National Natural Science Fundation of China (Grant No. 11890672).
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Yu, B., Sun, M., Pan, R. et al. Semi-custom methodology to fabricate transmission electron microscopy chip for in situ characterization of nanodevices and nanomaterials. Sci. China Technol. Sci. 65, 817–825 (2022). https://doi.org/10.1007/s11431-021-1980-1
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DOI: https://doi.org/10.1007/s11431-021-1980-1