Breakthrough in atomically thin semiconductors: Large-scale controlled doping and integration achieved.
Peer-Reviewed Publication
Updates every hour. Last Updated: 11-Aug-2025 23:11 ET (12-Aug-2025 03:11 GMT/UTC)
The research team led by Professor Jun He from Wuhan University has developed a universal metal-assisted epitaxy strategy to produce wafer-scale monolayer MoS2 films with specific substitutional doping on commercial insulator substrates of c-plane sapphire. By precisely introducing dopants, the carrier types of monolayer MoS2 films can be effectively modulated, evidenced by the theory calculations and multi-scale characterizations. Consequently, transistors with high mobility (≈ 71.2 cm2V−1s−1) and on/off current ratio (≈ 108), as well as low-power inverters, are obtained. Finally, we developed a standard gate-last process for integrating hundreds of thousands of gate level modulation-doped MoS2 array devices on a 4-inch wafer, and demonstrated their applications in digital logic circuits such as data selector, 3-to-8 decoder and full adder. These results advance the development of controllable synthesis technology for wafer-scale 2D modulation-doped semiconductors and pave the way for their practical applications in integrated electronics.
Scientists have developed a nanosecond-scale electrical detection technique to film chemical reactions at the single-molecule level. This breakthrough directly observed hidden intermediates in a key organic reaction (Morita-Baylis-Hillman), resolved long-standing debates about proton transfer mechanisms, and revealed unexpected catalytic oscillations. By applying electric fields, the reaction efficiency surged 5000-fold, enabling scalable green synthesis on a chip.
A team of researchers in France are building on fundamental experimental research undertaken in the Ukrainian Chornobyl exclusion zone with a new project in the Japanese Fukushima Prefecture to further our understanding of what it means for animals to live and reproduce in radioactive environments.
Coordination nanosheets formed by coordination bonds between metal ions and planar organic molecules are widely utilized in diverse electronic and catalytic applications. In a new study, researchers from Tokyo University of Science (TUS), Japan, have developed coordination nanosheets in an ink-like form. By employing a single-phase reaction of nickel, copper, and zinc ions along with benzenehexathiol, they have demonstrated the selective and sequential synthesis of highly conductive coordination nanosheets.
Modern manufacturing requires advanced management methods, and manufacturing data analytics (MDA) has emerged as a key tool to help manufacturers anticipate and respond to rapidly changing conditions. However, despite its clear benefits, MDA adoption remains low due to a variety of challenges. In a new study, researchers developed a comprehensive issue set for MDA implementation (CISM) that can help manufacturers proactively identify and resolve these issues, paving the way for broader MDA adoption.
A research team at Zhejiang University has developed a PEDOT-based conductive hydrogel with enhanced electrical performance and microscale patterning capability, enabled by a laser-assisted phase separation strategy. The material achieves high conductivity, spatial resolution, interfacial stability, and biocompatibility, providing a scalable platform for soft and implantable bioelectronic devices.
Researchers have designed a new two-dimensional ferroelectric memtransistor to realize the reward-modulated spike-timing dependent plasticity in a single device for implementing the robotic recognition and tracking tasks.