Author/Authors :
Zha، نويسنده , , Gangqiang and Jie، نويسنده , , Wanqi and Tan، نويسنده , , Tingting and Li، نويسنده , , Peisen and Zhang، نويسنده , , Wenhua and Xu، نويسنده , , Faqiang، نويسنده ,
Abstract :
The components of CdZnTe (1 1 1) A and B surface were measured by XPS. The result shows that Te atoms at the A topmost surface are chemically bonded by O atoms, but Te atoms are not at B surface. A new reconstruction structure ( 3 × 3 ) R 30 ° is uncovered for CZT (1 1 1) A surface through low-energy electron diffraction, and is explained in terms of a surface vacancy model. The surface state is measured by Angle-resolved photoemission spectroscopy, which confirms that there are dangling bonds at the reconstructed CZT (1 1 1) A surface.
