Stabilizing surface Ag adatoms into tunable single atom arrays by terminal alkyne assembly

Jing Liu; Xiangyu Fu; Qiwei Chen; Yajie Zhang; Yongfeng Wang; Dahui Zhao; Wei Chen; Guo Qin Xu; Peilin Liao; Kai Wu

doi:10.1039/C6CC06444B

Stabilizing surface Ag adatoms into tunable single atom arrays by terminal alkyne assembly†

Jing Liu,^ab Xiangyu Fu,^c Qiwei Chen,^a Yajie Zhang,^a Yongfeng Wang,^d Dahui Zhao,^c Wei Chen,^ef Guo Qin Xu,^ef Peilin Liao*^g and Kai Wu*^af

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* Corresponding authors

^a BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
E-mail: kaiwu@pku.edu.cn

^b College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China

^c MOE Key Lab of Polymer Chemistry & Physics, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

^d Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China

^e Department of Chemistry, National University of Singapore, Singapore 117543, Singapore

^f SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore

^g Department of Chemical & Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
E-mail: peilin.lpl@gmail.com

Abstract

Ordered two-dimensional arrays of silver adatoms with tunable metal atom density stabilized by 1,4-diethynyl-2,5-dimethylbenzene, a terminal alkyne, were prepared on Ag(111) and scrutinized by scanning tunneling microscopy and density functional theory calculations. Stabilization of the adatom arrays was attributed to the substrate-mediated electron localizations of the Ag adatom and terminal alkynyl in the molecule.

Chemical Communications

Stabilizing surface Ag adatoms into tunable single atom arrays by terminal alkyne assembly†

Abstract

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Stabilizing surface Ag adatoms into tunable single atom arrays by terminal alkyne assembly

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