【人民日报】新型半导体材料领域取得重要进展

Core Insights - The research team at the University of Science and Technology of China, led by Professor Zhang Shuchen, has made significant advancements in the field of new semiconductor materials, achieving controllable construction of "mosaic" heterojunctions with atomic-level flatness in two-dimensional ionic soft crystal lattice materials [1] Group 1: Research Achievements - The team has successfully implemented in-plane programmable and atomically flat "mosaic" heterojunctions, paving the way for the development of high-performance optoelectronic and integrated devices [1] - The results of this research have been published in the international academic journal "Nature" [1] Group 2: Technical Challenges - Constructing heterostructures with precision in the plane of materials is crucial for exploring novel properties, developing new devices, and promoting device miniaturization [1] - Traditional techniques like photolithography often damage the soft and unstable crystal structures of ionic soft crystal semiconductors, making high-quality lateral heterointegration difficult [1] Group 3: Innovative Solutions - The research team has proposed and developed a novel method of guided crystal internal stress "self-etching," allowing for the precise filling of different types of semiconductor materials [1] - This innovative approach enables the construction of high-quality "mosaic" heterojunctions with continuous lattices and atomically flat interfaces within a single chip [1]