In Situ Nano-thermomechanical Experiment Reveals Brittle to Ductile Transition in Silicon Nanowires

AbstractThe recent development of in-situ liquid stages for (scanning) transmission electron microscopes now makes it possible for us to study the details of electrochemical processes under operando conditions. As electrochemical processes are complex, care must be taken to calibrate the system before any in-situ/operando observations. In addition, as the electron beam can cause effects that look similar to electrochemical processes at the electrolyte/electrode interface, an understanding of the role of the electron beam in modifying the operando observations must also be understood. In this paper we describe the design, assembly, and operation of an in-situ electrochemical cell, paying particular attention to the method for controlling and quantifying the experimental parameters. The use of this system is then demonstrated for the lithiation/delithiation of silicon nanowires.

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In Situ TEM of Phosphorus-Dopant-Induced Nanopore Formation in Delithiated Silicon Nanowires

ACS Applied Materials & Interfaces ◽

10.1021/acsami.8b20436 ◽

2019 ◽

Vol 11 (19) ◽

pp. 17313-17320 ◽

Cited By ~ 4

Author(s):

Jiakun Zhu ◽

Mohan Guo ◽

Yuemei Liu ◽

Xiaobo Shi ◽

Feifei Fan ◽

...

Keyword(s):

Silicon Nanowires ◽

In Situ Tem

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Lithiation-induced fracture of silicon nanowires observed by in-situ scanning electron microscopy

Nanotechnology ◽

10.1088/1361-6528/ab957a ◽

2020 ◽

Vol 31 (36) ◽

pp. 364001

Author(s):

Chuan-Yu Wei ◽

Yu-Tao Sun ◽

Yu-Ling Liu ◽

Ting-Ran Liu ◽

Cheng-Yen Wen

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Silicon Nanowires ◽

Scanning Electron

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Silicon nanowires-based fluorescent sensor for in situ detection of hydrogen sulfide in extracellular environment

RSC Advances ◽

10.1039/c5ra08728g ◽

2015 ◽

Vol 5 (81) ◽

pp. 65905-65908 ◽

Cited By ~ 5

Author(s):

Huimin Wang ◽

Lixuan Mu ◽

Guangwei She ◽

Wensheng Shi

Keyword(s):

Hydrogen Sulfide ◽

Silicon Nanowires ◽

Fluorescent Sensor ◽

Nanowire Array ◽

Live Cells ◽

Si Nanowire ◽

Si Nanowire Array ◽

In Situ Detection ◽

Extracellular Environment

Based on a Si nanowire array, a fluorescent sensor for H2S was realized and successfully used for real time and in situ imaging of the changes in extracellular H2S of live cells.

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DNA Detection Using SiC Nanowire Based Transistor

Materials Science Forum ◽

10.4028/www.scientific.net/msf.858.1006 ◽

2016 ◽

Vol 858 ◽

pp. 1006-1009 ◽

Cited By ~ 2

Author(s):

Edwige Bano ◽

Louis Fradetal ◽

Valérie Stambouli ◽

Giovanni Attolini

Keyword(s):

Silicon Nanowires ◽

Field Effect Transistor ◽

Direct Detection ◽

High Sensitivity ◽

Nanoelectronic Devices ◽

Chemical Inertness ◽

Pathogenic Viruses ◽

Effect Transistor ◽

First Time

The fast and direct detection of small quantities of biomolecules improves early medical diagnosis of certain serious diseases as cancers and can be used to detect in situ the presence of pathogenic viruses or GMOs for food industry, protection environmental and bio-defense. Numerous research projects are conducted on nanoelectronic devices that can perform such detection with high sensitivity using nanostructures. Currently, these devices are made from Silicon nanowires [1]. For these applications, Silicon Carbide (SiC) material can advantageously replace Silicon as this semiconductor is now known to be biocompatible and to show a high chemical inertness [2]. Here, we present the electrical detection of DNA using a SiC Nanowire Field Effect Transistor (NWFET). The NWFETs are fabricated and then functionalized with DNA molecules. Between each step of the functionalization process, I-V characteristic measurements are performed. Comparative and simultaneous measurements are carried out on two SiC NWFETs: one is the sensor and the second one is used as a reference. Some interesting properties of the sensor are studied for the first time which opens the way to future developments of SiC nanowire based sensors.

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