Electrochemical electron beam lithography: Write, read, and erase metallic nanocrystals on demand

Park, Jeung Hun; Steingart, Daniel Artemus; Kodambaka, S.; Ross, Frances M.

doi:10.1126/sciadv.1700234

Cited by 22 publications

(15 citation statements)

References 46 publications

(73 reference statements)

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“…Apart from nanomaterial synthesis and manipulation, battery cycling and biological cells, liquid cell TEM has also been used in a wide range of other fields. Examples include localized corrosion kinetics [16,148,149], biological mineralization processes [150][151][152], and in situ patterning [153] and electron beam lithography [154]. And with better resolution and more customized functionalities, more research fields will be explored using liquid cell TEM in the future [155].…”

Section: Other Research Work Based On Liquid Cell Temmentioning

confidence: 99%

“…Not only do these methods have a low success rate, the amount of material deposited onto the chip is too small, which makes such systems far from being representative of their real battery counterparts. To improve its representativeness, a larger amount of material with better attachment to the electrode should be achieved by either nanoscale thin-film patterning [153,154,171] or by focused ion beam (FIB) and nanoscale welding [172]. Membrane materials can also cause problems, making liquid cell TEM less representative.…”

Section: Representativenessmentioning

confidence: 99%

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Liquid cell transmission electron microscopy and its applications

2020

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Transmission electron microscopy (TEM) has long been an essential tool for understanding the structure of materials. Over the past couple of decades, this venerable technique has undergone a number of revolutions, such as the development of aberration correction for atomic level imaging, the realization of cryogenic TEM for imaging biological specimens, and new instrumentation permitting the observation of dynamic systems in situ . Research in the latter has rapidly accelerated in recent years, based on a silicon-chip architecture that permits a versatile array of experiments to be performed under the high vacuum of the TEM. Of particular interest is using these silicon chips to enclose fluids safely inside the TEM, allowing us to observe liquid dynamics at the nanoscale. In situ imaging of liquid phase reactions under TEM can greatly enhance our understanding of fundamental processes in fields from electrochemistry to cell biology. Here, we review how in situ TEM experiments of liquids can be performed, with a particular focus on microchip-encapsulated liquid cell TEM. We will cover the basics of the technique, and its strengths and weaknesses with respect to related in situ TEM methods for characterizing liquid systems. We will show how this technique has provided unique insights into nanomaterial synthesis and manipulation, battery science and biological cells. A discussion on the main challenges of the technique, and potential means to mitigate and overcome them, will also be presented.

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Section: Other Research Work Based On Liquid Cell Temmentioning

confidence: 99%

Section: Representativenessmentioning

confidence: 99%

Liquid cell transmission electron microscopy and its applications

2020

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“…3 This allows us to study dynamic phenomena taking place in the materials in solvated environments 4 with high spatial and temporal resolution. 5,6 Several previous studies were focused on the precipitation and dissolution dynamics of different nanostructured systems utilizing electron-beam-induced phenomena inside a liquid-cell TEM, for example, Cu and Ni nanocrystals, 7 Pd dendritic nanostructures, 8 alloys such as Ag-Pd 7 or more complex structures like CaCO 3 (ref. 9) and CeO 2 .…”

Section: Introductionmentioning

confidence: 99%

Controlling the radical-induced redox chemistry inside a liquid-cell TEM

et al. 2019

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“…Since products from water radiolysis include both reducing and oxidizing species, the relative concentrations of e h − and H • would determine whether etching or growth of nanoparticles happens, which are a function of electron dose rate with other parameters held constant (Figure d). Thus, controlling electron dose rate may allow us to write, read, and erase metallic nanocrystals on demand in liquid cell …”

Section: In Situ Tem In Liquid Environmentmentioning

confidence: 99%

In Situ Transmission Electron Microscopy on Energy‐Related Catalysis

Hwang

Chen

Zhou

et al. 2019

Advanced Energy Materials

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Energy‐related catalytic reactions have been extensively investigated in past years in order to efficiently utilize clean and environmentally benign energy sources. In these systems, the catalysts and the catalyst/active medium interfaces play a crucial role in determining their performance. Thus, understanding the physical and chemical properties of catalysts during reactions is of importance to provide fundamental insights for designing the devices. Transmission electron microscopy can provide tremendous information regarding materials' morphology, microstructure, and chemical properties at nanoscales. With in situ electron microscopy, dynamic processes of catalytic reactions in both gas and liquid environments have been investigated in real time. In this paper, the recent research progress of in situ and operando electron microscopy techniques are introduced with the representative works in energy‐related reactions, including electrochemical catalysis in liquid media and heterogeneous catalysis in gas media. The uniqueness of the specific electron microscopy methods and scientific merits of each work are highlighted. Finally, outlooks on emerging research opportunities are discussed.

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Electrochemical electron beam lithography: Write, read, and erase metallic nanocrystals on demand

Abstract: We develop an electrochemistry- and radiolysis-based patterning technique for site-specific deposition and dissolution of metallic nanocrystals.

Cited by 22 publications

References 46 publications

Liquid cell transmission electron microscopy and its applications

Liquid cell transmission electron microscopy and its applications

Controlling the radical-induced redox chemistry inside a liquid-cell TEM

In Situ Transmission Electron Microscopy on Energy‐Related Catalysis

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