专题:Photocathodes and Microchannel Plates
This cluster of papers focuses on the development and optimization of high-efficiency photocathodes for electron sources, with a particular emphasis on materials such as GaN and GaAs. The research covers topics such as quantum efficiency, negative electron affinity, surface photovoltage, microchannel plates, spin polarization, and the application of these photocathodes in ultraviolet detectors.