Creation of artificial one-dimensionalπ-electron systems and perfect control of their electronic structures

在单晶相邻表面上，经过脱氢退火处理后，在平行的直线台阶上周期性地排列，使烃类分子自组织制备出一维碳结构。我们成功地通过改变分子的种类或数量来控制它们的结构，衬底材料及其表面，退火温度及其梯度。采用Pt（997）、Ni（755）和Si（111）和Si（100）的1.5°表面作为衬底，并通过添加苯或丙烯分子形成具有之字形或扶手椅边缘和其他一维结构的石墨纳米带。现在，我们检查它们的电子结构。

One-dimensional structures of carbon have been fabricated by self-organization of dosed hydrocarbon molecules on vicinal surfaces of single crystals, where parallel straight steps are arranged periodically, after the annealing process causing dehydrogenation. We succeeded in controlling their structures by changing species or quantities of molecules to supply, substrate materials and their facets, and the annealing temperature and its gradient. Pt(997), Ni(755), and 1.5°off surfaces of Si(111) and Si(100) are used for the substrates, and graphen nano-ribbons with zigzag or armchair edges and other one-dimensional structures are formed by dosing benzene or propylene molecules. Now, we examine their electronic structures.