Templated Self-Assembly and Local Doping of Molecules on Epitaxial Hexagonal Boron Nitride

Using low-temperature scanning tunneling microscopy, we show that monolayer hexagonal boron nitride (h-BN) on Ir(111) acts as ultrathin insulating layer for organic molecules, while simultaneously templating their self-assembly. Tunneling spectroscopy experiments on cobalt phthalocyanine (CoPC) reve...

Full description

Saved in:
Bibliographic Details
Published in:ACS nano 2013-12, Vol.7 (12), p.11121-11128
Main Authors: Schulz, Fabian, Drost, Robert, Hämäläinen, Sampsa K, Liljeroth, Peter
Format: Article
Language:English
Subjects:
Boron nitride
Charge
Dimers
Epitaxy
Insulating layers
Nanostructure
Scanning tunneling microscopy
Self assembly
Superstructures
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using low-temperature scanning tunneling microscopy, we show that monolayer hexagonal boron nitride (h-BN) on Ir(111) acts as ultrathin insulating layer for organic molecules, while simultaneously templating their self-assembly. Tunneling spectroscopy experiments on cobalt phthalocyanine (CoPC) reveal narrow molecular resonances and indicate that the charge state of CoPC is periodically modulated by the h-BN moiré superstructure. Molecules in the second layer show site-selective adsorption behavior, allowing the synthesis of molecular dimers that are spatially ordered and inaccessible by usual chemical means.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn404840h