Wafer-scale single-orientation 2D layers by atomic edge-guided epitaxial growth

2022 ◽  
Author(s):  
Yi Wan ◽  
Jui-Han Fu ◽  
Chih-Piao Chuu ◽  
Vincent Tung ◽  
Yumeng Shi ◽  
...  

We provide a systematic summary of the critical factors—including crystal/substrate symmetry and energy consideration—necessary for synthesizing single-orientation 2D layers.

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 788
Author(s):  
Jian-Huan Wang ◽  
Ting Wang ◽  
Jian-Jun Zhang

Controllable growth of wafer-scale in-plane nanowires (NWs) is a prerequisite for achieving addressable and scalable NW-based quantum devices. Here, by introducing molecular beam epitaxy on patterned Si structures, we demonstrate the wafer-scale epitaxial growth of site-controlled in-plane Si, SiGe, and Ge/Si core/shell NW arrays on Si (001) substrate. The epitaxially grown Si, SiGe, and Ge/Si core/shell NW are highly homogeneous with well-defined facets. Suspended Si NWs with four {111} facets and a side width of about 25 nm are observed. Characterizations including high resolution transmission electron microscopy (HRTEM) confirm the high quality of these epitaxial NWs.


Nano Letters ◽  
2016 ◽  
Vol 16 (5) ◽  
pp. 3360-3366 ◽  
Author(s):  
A-Rang Jang ◽  
Seokmo Hong ◽  
Chohee Hyun ◽  
Seong In Yoon ◽  
Gwangwoo Kim ◽  
...  

Author(s):  
В.Н. Бессолов ◽  
Е.В. Коненкова ◽  
С.Н. Родин ◽  
Д.С. Кибалов ◽  
В.К. Смирнов

The epitaxial growth of AlN and GaN layers was studied by Metalorganic Vapor Phase Epitaxy, on a Si(100) substrate, on the surface of which a V-shaped nanostructure with sub-100 nm element size (NP-Si(100)) was formed. It is shown that a corrugated surface is formed from semipolar AlN(10-11) planes with opposite "c"axes during the formation of a semipolar AlN layer at the initial stage of epitaxy. Then, during the growth of the GaN layer, the transition from the symmetric state of two semipolar AlN planes to an asymmetric state with a single orientation of the "c"-axis of the semipolar GaN(10-11) layer occurs, and the "c" direction in the growing semipolar layer coincides with the direction of the flow of N2+ ions to the silicon surface during the formation of a nanomask.


Author(s):  
Adrian Hemmi ◽  
Huanyao Cun ◽  
Steven Brems ◽  
Cedric Huyghebaert ◽  
Thomas Greber

Author(s):  
Jinhuan Wang ◽  
Xiaozhi Xu ◽  
Ting Cheng ◽  
Lehua Gu ◽  
Ruixi Qiao ◽  
...  

2020 ◽  
Vol 49 (9) ◽  
pp. 5144-5153
Author(s):  
Yongzhao Yao ◽  
Yoshihiro Sugawara ◽  
Yukari Ishikawa ◽  
Narihito Okada ◽  
Kazuyuki Tadatomo

1996 ◽  
Vol 427 ◽  
Author(s):  
J. Y. Yew ◽  
L. J. Chen ◽  
K. Nakamura

AbstractEpitaxial growth of NiSi2 on (111)Si inside 0.1-0.6 4m in size oxide openings prepared by electron beam lithography has been studied by field emission scanning electron microscopy, transmission electron microscopy and thin film stress measurement. Striking effects of size and shape of deep submicron oxide openings on the growth of NiSi2 epitaxy were observed. Epitaxial growth of NiSi2 of single orientation on (111)Si was found to occur at a temperature as low as 400 °C inside both contact holes and linear openings of 0.3. μm or smaller in size. Contact holes were found to be more effective in inducing the epitaxial growth of NiSi2 of single orientation than that of linear openings of the same size. The effects of size and shape of lateral confinement on the epitaxial growth of NiSi2 on (111)Si are correlated with the stress level inside oxide openings.


2007 ◽  
Vol 90 (20) ◽  
pp. 202902 ◽  
Author(s):  
Hai Wen ◽  
Xiaohui Wang ◽  
Caifu Zhong ◽  
Like Shu ◽  
Longtu Li

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