A team led by Peking University professors Peng Lianmao and Zhang Zhiyong has made a breakthrough in the field of carbon-based semiconductor preparation materials, according to CCTV.
The research results were recently published in the journal Science.
The team prepared parallel arrays of carbon nanotubes with a density of up to 120 roots/micron and a semiconductor purity of more than 99.9999% on a four-inch substrate using multiple purification and dimensional limitation self-assembly methods.
On this basis, they have achieved the first performance beyond the equivalent gate length silicon-based CMOS transistors and circuits, successfully breaking the bottleneck that has long hindered the development of carbon nanotube electronics, and laying the foundation for promoting the practicality and industrialization of carbon based integrated circuits.
Carbon based semiconductors are also seen as a better performing semiconductor material because of their lower cost, lower power consumption and higher efficiency compared to traditional silicon based technologies.
With China's breakthrough in carbon-based semiconductor preparation materials technology, the future, China is expected to have stronger international competitiveness in the field of semiconductor materials, chips, integrated circuits, the CCTV report said.
