funded by the National Key Research and Development Program(No.2022YFE0124200);the National Natural Science Foundation of China(No.U2241221);National Innovation Center of Radiation Applications(No.KFZC2021020501);Functional Materials and Devices Technology Innovation Team of Guizhou Province University,Qian Jiaoji(No.[2023]058).
The nanoscale air channel device(NACD)has recently gained significant attention as a novel vacuum electronic that can be fabricated through nanofabrication technologies.Here,the research and progress of the NACD since...