Hossain Md Zakir, Kato Hiroyuki S, Kawai Maki
RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan.
J Phys Chem B. 2005 Dec 15;109(49):23129-33. doi: 10.1021/jp055760g.
To realize nanoscale wiring in two dimensions (2D), the fabrication of interconnected one-dimensional (1D) molecular lines through the radical chain reaction of alkene molecules (CH2=CH-R) on the H-terminated Si(100)-(2 x 1) surface have been investigated using scanning tunneling microscopy (STM) at 300 K. By the judicious choice of R in the CH2=CH-R molecule and by creating a dangling bond (DB) at a desired point using the STM tip, the perpendicularly connected allyl mercaptan (ALM) and styrene lines have been fabricated on the Si(100)-(2 x 1)-H surface. The continuous growth of the styrene line at the end DB of a growing ALM line (or vice versa) does not occur, perhaps, due to steric hindrance or/and interaction between adsorbed molecules.
为了在二维（2D）中实现纳米级布线，利用扫描隧道显微镜（STM）在300 K下研究了通过烯烃分子（CH2=CH-R）在H端接的Si(100)-(2×1)表面上的自由基链反应制备相互连接的一维（1D）分子线。通过在CH2=CH-R分子中明智地选择R，并使用STM针尖在所需位置创建悬空键（DB），在Si(100)-(2×1)-H表面上制备了垂直连接的烯丙基硫醇（ALM）和苯乙烯线。在生长的ALM线的末端DB处（反之亦然），苯乙烯线不会连续生长，这可能是由于空间位阻或/和吸附分子之间的相互作用。
