Mechanism of field-induced manipulation of Cu-phthalocyanines on a Bi surface using scanning tunneling microscope

被引：1

作者：

Yaginuma, Shin ^{[1
]}

Nagaoka, Katsumi ^{[2
]}

Nakayama, Tomonobu ^{[2
,3
]}

机构：

[1] Nagano Coll, Natl Inst Technol, Nagano 3818550, Japan

[2] NIMS, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan

[3] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2019年 / 1181卷

关键词：

Phthalocyanine; Bismuth; Surface science; Field-induced manipulation; Self-assembly; STM; MOLECULES; ATOMS;

D O I：

10.1016/j.molstruc.2018.12.094

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have revisited our hypothesis [K. Nagaoka et al., Jpn. J. Appl. Phys. 57 (2018) 020301] regarding the control of the motion and assembly of copper phthalocyanine (CuPc) molecules on a Bi(001) surface using a scanning tunneling microscope (STM) tip. The proposal that the observed diffusion and condensation are not due to the adsorption/desorption of molecules via the tip by applying a bias voltage was investigated for field-induced manipulation. Our experiments show that CuPc cannot move across steps or condense on different terraces on the Bi(001) surface. When confined to a nano-scale region, the CuPc molecules assemble into ordered single-layer islands. The island position can be manipulated using the STM tip, with an almost constant number of condensed molecules remaining inside the terrace. These results allowed us to rule out the possibility of picking-up and depositing molecules by the STM tip. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：563 / 567

页数：5

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