Surface trapping of atoms and molecules with dipole rings

被引：157

作者：

Dil, Hugo ^{[1
,2
]}

Lobo-Checa, Jorge ^{[1
,2
]}

Laskowski, Robert ^{[3
]}

Blaha, Peter ^{[3
]}

Berner, Simon ^{[1
]}

Osterwalder, Juerg ^{[1
]}

Greber, Thomas ^{[1
]}

机构：

[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

[2] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[3] Vienna Univ Technol, Inst Mat Chem, A-1060 Vienna, Austria

来源：

SCIENCE | 2008年 / 319卷 / 5871期

关键词：

D O I：

10.1126/science.1154179

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The trapping of single molecules on surfaces without the formation of strong covalent bonds is a prerequisite for molecular recognition and the exploitation of molecular function. On nanopatterned surfaces, molecules may be selectively trapped and addressed. In a boron nitride nanomesh formed on Rh( 111), the pattern consisted of holes 2 nanometers in diameter on a hexagonal superlattice, separated by about 3 nanometers. The trapping was further investigated with density functional theory and the photoemission of adsorbed xenon, where the holes were identified as regions of low work function. The analysis showed that the trapping potential was localized at the rims of the holes.

引用

页码：1824 / 1826

页数：3