塑性无机半导体、制乙醇、滤波器等获中国科学院杰出科技成就奖

Core Insights - The Chinese Academy of Sciences awarded the 2025 Outstanding Scientific Achievement Awards, recognizing three projects: "Plastic Inorganic Semiconductors" for Basic Research, "DME to Ethanol Technology" for Technological Invention, and "RF SAW Filter Substrate Technology for 5G/6G" for Scientific Research [1] Group 1: Plastic Inorganic Semiconductors - The "Plastic Inorganic Semiconductor" project achieved a breakthrough by discovering that silver sulfide and indium selenide single crystals exhibit metallic-like mechanical properties at room temperature, surpassing conventional semiconductors in strain [2] - The research team identified a "multi-center, dispersed" chemical bond mechanism that governs plasticity, leading to the development of over 20 room-temperature plastic inorganic semiconductors through high-throughput calculations [2][4] - The project has led to the creation of a series of disruptive plastic inorganic functional materials, including ultra-thin flexible thermoelectric devices and flexible temperature sensor arrays, with some results already transferred to practical applications [4] Group 2: Ethanol Production Technology - The "DME to Ethanol Technology" project addresses the dual role of ethanol as both a bulk chemical and an energy product, emphasizing the strategic importance of non-grain ethanol technology for energy and food security in China [5] - The project team developed a complete industrial technology for DME to ethanol, achieving the world's first industrial demonstration and leading to multiple projects with capacities of 500,000 tons/year and 600,000 tons/year for coal-based ethanol and steel plant gas-based ethanol, respectively [7] - The technology has resulted in 15 signed technology implementation contracts, with a total capacity of 5.15 million tons/year, and 7 projects already in production with a capacity of 2.65 million tons/year [7] Group 3: RF SAW Filter Technology - The project focused on high-performance RF surface acoustic wave (SAW) filters for 5G/6G mobile communications, overcoming various physical mismatch issues in the preparation of silicon-based piezoelectric heterostructures [8] - The team developed a technology for large-scale production of piezoelectric heterostructures, significantly enhancing the working frequency of devices from below 2GHz to above 6GHz, thus breaking the frequency bottleneck in SAW devices [10] - The project established a complete technology and product chain from piezoelectric heterostructures to device design and RF module integration, supporting the localization and security of core materials for China's 5G/6G mobile terminals [10]