Work function tunable to 1.1 eV
Co-deposited H or O impurities with tailored coverage enable a significantly lowered work function and enhanced Cs adsorption stability, making this surface a key component for efficient negative hydrogen ion sources.
Li, Heng · Zhang, Xin · Xu, Yuhong · Lei, Guangjiu · Liu, Sanqiu · Tsumori, Katsuyoshi · Nakano, Haruhisa · Osakabe, Masaki · Isobe, Mitsutaka · Shoichi, Okamura · Shimizu, Akihiro · Ogawa, Kunihiro · Takahashi, H. · Cui, Zilin · Hu, Jun · Zhu, Yiqin · Xiaolong, Li · Huaqing, Zheng · Xiaoqiao, Liu · Geng, Shaofei · Chen, Xiaochang · Liu, Haifeng · Wang, Xiangqu · Haifeng, Liu · Tang, Changjian · Team, Cfqs
Nuclear Materials and Energy 2023
Minimum work function at 0.5 ML Cs coverage
Work function varies inversely with surface dipole moment density