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

人工一维π电子系统的创建及其电子结构的完美控制

• 批准号: 22655063
• 负责人: NANTOH Masashi
• 金额: $ 2.18万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22655063/
• 关键词: 自己組織化; 表面・界面物性; ナノ材料; 物性実験; π共役電子系; 磁性

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.

碳的一维结构已经通过在单晶的邻近表面上的定量烃分子的自组织来制造，其中在退火过程引起脱氢之后，平行的直台阶周期性地排列。我们成功地控制其结构，通过改变种类或数量的分子供应，衬底材料和它们的方面，和退火温度及其梯度。以Pt（997）、Ni（755）、Si（111）和Si（100）的1.5°离面为衬底，通过掺杂苯或丙烯分子，形成锯齿形或扶手椅形等一维结构的石墨烯纳米带。现在，我们研究它们的电子结构。