摘要
本文应用XPS(X射线光电子能谱仪)研究了真空烘烤对碘化铯光阴极化学状态的影响。实验结果表明在高真空环境中,碘化铯光阴极在低于180℃的烘烤条件下即以缓慢的速率升华,但是,它的化学状态是稳定的。而在高于180℃的烘烤条件下,它的化学状态将发生变化。
The effects of vacuum-baking on the chemical state of CsI photocathodes are studied with X-ray photoelectron spectroscopy (XPS). The experimental results indicate that when the vacuum-baking temperature is below 180℃ the chemical states of CsI photocathode are stable,but there is a low rate sublimation of CsI in high vacuum. When the vacuum-baking temperature is higher than 180℃, chemical shifts occur.
出处
《光电子技术》
CAS
1993年第3期54-59,共6页
Optoelectronic Technology
关键词
光电子能谱仪
碘化铯光阴极
热稳定
XPS,CsI photocathode,chemical state,thermal stability
