Robust epitaxial growth of two-dimensional heterostructures, multiheterostructures, and superlattices

• DOI: 10.1126/science.aan6814
• Publication Date: 2017-08-04T00:50:21Z
• Authors: Zhengwei Zhang; Peng Chen; Xidong Duan; Ketao Zang; Jun Luo; Xiangfeng Duan
• Keywords: 02 engineering and technology; 0210 nano-technology

Cycling 2D crystal growth The electronic and optical properties of two-dimensional (2D) transitional metal dichalcogenides such as MoS 2 WSe could be modulated by creating in-plane superlattices heterostructures from these materials. However, single layers materials are fragile often do not withstand the processing conditions needed during subsequent steps. Zhang et al. developed a reverse-flow reactor that avoids thermal degradation unwanted nucleation. They demonstrate several examples block-by-block epitaxial growth, where surrounds WS core composition alternates between . Science , this issue p. 788