1. Inversion boundary annihilation in GaAs Monolithically grown on on-axis Silicon (001)
- Author
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Jin-Chuan Zhang, Wei Li, Xuezhe Yu, Junjie Yang, Jae Seong Park, Ying Lu, Fengqi Liu, Alwyn J. Seeds, Ana M. Sanchez, Xiaodong Han, Zizhuo Liu, Huan Wang, Huiyun Liu, Richard Beanland, Huiwen Deng, Mingchu Tang, Peter Michael Smowton, Siming Chen, Pamela Jurczak, Hui Jia, Keshuang Li, and Manyu Dang
- Subjects
Silicon photonics ,Materials science ,Silicon ,business.industry ,Annealing (metallurgy) ,Photonic integrated circuit ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,CMOS ,Operating temperature ,chemistry ,Quantum dot laser ,Optoelectronics ,0210 nano-technology ,business ,Molecular beam epitaxy - Abstract
Monolithic integration of III–V materials and devices on CMOS compatible on‐axis Si (001) substrates enables a route of low‐cost and high‐density Si‐based photonic integrated circuits. Inversion boundaries (IBs) are defects that arise from the interface between III–V materials and Si, which makes it almost impossible to produce high‐quality III–V devices on Si. In this paper, a novel technique to achieve IB‐free GaAs monolithically grown on on‐axis Si (001) substrates by realizing the alternating straight and meandering single atomic steps on Si surface has been demonstrated without the use of double Si atomic steps, which was previously believed to be the key for IB‐free III–V growth on Si. The periodic straight and meandering single atomic steps on Si surface are results of high‐temperature annealing of Si buffer layer. Furthermore, an electronically pumped quantum‐dot laser has been demonstrated on this IB‐free GaAs/Si platform with a maximum operating temperature of 120 °C. These results can be a major step towards monolithic integration of III–V materials and devices with the mature CMOS technology.
- Published
- 2020