Yin Xiu-Li, Birkner Alexander, Hänel Kathrin, Löber Thomas, Köhler Ulrich, Wöll Christof
Physikalische Chemie I, Ruhr-Universität Bochum, 44780, Bochum, Germany.
Phys Chem Chem Phys. 2006 Apr 7;8(13):1477-81. doi: 10.1039/b515464b. Epub 2006 Feb 6.
The adsorption of atomic hydrogen on a single crystal ZnO(1010) surface has been studied by scanning tunneling microscopy (STM) under ultrahigh vacuum conditions at room temperature and at elevated temperatures. High resolution STM images indicate that a well-ordered (1x1) H adlayer is formed on the ZnO(1010) surface. The STM data strongly indicate that the hydrogen adsorbs on top of the oxygen atoms forming hydroxyl species. Scanning tunneling spectroscopy (STS) studies reveal a H atom induced metallization at room temperature. In contrast to the clean surface for the hydrogen-covered surface distinct defects structures consisting of missing O and Zn atoms could be identified.
在室温及高温的超高真空条件下，利用扫描隧道显微镜（STM）研究了单晶ZnO(1010)表面上原子氢的吸附情况。高分辨率STM图像表明，在ZnO(1010)表面形成了有序的(1x1)氢吸附层。STM数据有力地表明，氢吸附在氧原子顶部形成羟基物种。扫描隧道谱（STS）研究揭示了室温下氢原子诱导的金属化现象。与清洁表面相比，对于氢覆盖的表面，可以识别出由缺失的氧和锌原子组成的明显缺陷结构。
