High-Resolution STM Studies of Terephthalic Acid Molecules on Rutile TiO2(110)-(1 x 1) Surfaces
High-Resolution STM Studies of Terephthalic Acid Molecules on Rutile TiO2(110)-(1 x 1) Surfaces
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DOI：
10.1021/jp901184t
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发表时间：
2009-05-28
影响因子：
3.7
通讯作者：
Szymonski, Marek
中科院分区：
文献类型：
--
作者：
Prauzner-Bechcicki, Jakub S.;Godlewski, Szymon;Szymonski, Marek
用扫描隧道显微镜（STM）研究了对苯二甲酸（TPA）分子在金红石型TiO_2（110）-（1 × 1）表面的吸附结构。分子分辨的STM图像显示形成的单分子层与TPA分子的倾向，形成二聚体行沿着[001]衬底方向。的能力，图像功能团的STM提示，和单分子扩散证明。测试了单分子层的质量和稳定性，包括对空气暴露的抵抗力。在此基础上，提出了TPA在金红石型TiO_2（110）-（1 × 1）上的吸附模型。
The structure of terephthatic acid (TPA) molecules adsorbed on rutile TiO2(110)-(1 x 1) has been investigated by scanning tunneling microscopy (STM). Molecularly resolved STM images show formation of monolayer with the tendency of TPA molecules to form dimer rows along the [001] substrate direction. The ability to image functional groups by the STM tip, and single molecule diffusion are demonstrated. The quality and stability of the monolayer are tested, including the resistance against air exposure. On the basis of results obtained, the model of TPA adsorption on the rutile TiO2 (110)-(1 x 1) is proposed.