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Skin-Like Electronics For A Persistent Brain-Computer Interface, Woon-Hong Yeo, Yongkuk Lee
Skin-Like Electronics For A Persistent Brain-Computer Interface, Woon-Hong Yeo, Yongkuk Lee
Mechanical and Nuclear Engineering Publications
There exists a high demand for a continuous, persistent recording of non-invasive electroencephalograms in both clinical and research fields. Head-cap electrodes with metal conductors and conductive gels are widely used and considered as the gold standard for such measurement. This physical interface, however, is poorly suited to uninterrupted, long-term use due to the uncomfortable rigid electrodes, skin irritation due to the gel, and electrical degradation as the gel dries. These issues can be addressed by using a newly developed, dry form of electronics. Here, we briefly review a class of soft electronic technology in the aspects of mechanics, materials, and …
Young's Modulus Of [111] Germanium Nanowires, M. Maksud, J. Yoo, C. T. Harris, N. K. R. Palapati, A. Subramanian
Young's Modulus Of [111] Germanium Nanowires, M. Maksud, J. Yoo, C. T. Harris, N. K. R. Palapati, A. Subramanian
Mechanical and Nuclear Engineering Publications
This paper reports a diameter-independent Young’s modulus of 91.9 ± 8.2 GPa for [111] Germaniumnanowires (Ge NWs). When the surface oxide layer is accounted for using a core-shell NW approximation, the YM of the Ge core approaches a near theoretical value of 147.6 ± 23.4 GPa. The ultimate strength of a NW device was measured at 10.9 GPa, which represents a very high experimental-to-theoretical strength ratio of ∼75%. With increasing interest in this material system as a high-capacity lithium-ion battery anode, the presented data provide inputs that are essential in predicting its lithiation-induced stress fields and fracture behavior.