中外联合团队 在新型半导体材料领域取得重要进展

Core Insights - The research team from the University of Science and Technology of China, in collaboration with Purdue University and ShanghaiTech University, has made significant advancements in the field of new semiconductor materials, achieving controllable construction of "mosaic" heterojunctions in two-dimensional ionic soft crystal materials, paving the way for high-performance optoelectronic and integrated devices [1][2] Group 1: Research Breakthroughs - The team has developed a novel method of guided crystal internal stress "self-etching," allowing for the controlled formation of square hole structures in two-dimensional perovskite single crystals [2] - This innovative processing technique enables the precise backfilling of different semiconductor materials, resulting in high-quality "mosaic" heterojunctions with atomically flat interfaces within a single crystal [2] Group 2: Implications for Future Technology - The new method allows for the potential direct "growth" of densely arranged micro-pixel points emitting different colors of light on a single thin material, providing a new material system and design approach for the development of high-performance optoelectronic and display devices [2] - The research represents a breakthrough in achieving high-quality, designable construction of lateral heterojunction structures in two-dimensional ionic materials, overcoming the limitations of traditional processes and offering a new platform for studying idealized interface physics [2]