Author/Authors :
Bai، نويسنده , , Xuxu and Jie، نويسنده , , Wanqi and Zha، نويسنده , , Gangqiang and Zhang، نويسنده , , Wenhua H. Zhu، نويسنده , , Junfa and Wang، نويسنده , , Tao and Yuan، نويسنده , , Yanyan and Wang، نويسنده , , Yabing and Hua، نويسنده , , Hui and Fu، نويسنده , , Li، نويسنده ,
Abstract :
Adsorption of water molecules on the CdZnTe (1 1 1) B surface has been studied at room temperature using synchrotron radiation ultraviolet photoemission spectroscopy (SRUPS), X-ray photoelectron spectroscopy (XPS) and low energy electron diffraction (LEED). After water exposure, the Cd 3d core level is chemically shifted by −0.5 eV, and in the valence band, three water-induced orbital levels are found at −3.6, −4.8 and around −8.5 eV below the Fermi level. They can be assigned to water molecules adsorbed on Cd atoms. Together with the observed work function decrease, we suggested that water is adsorbed oxygen-end-down.
