electroluminescence; organic electronics; graphene; chemical vapor deposition; molecular electronics; surface science; transport measurements; passivation layer; boron nitride; interfaces; scanning probes; self-assembly; epitaxial growth
Hemmi A., Bernard C., Cun H., Roth S., Kloeckner M., Kaelin T., Weinl M., Gsell S., Schreck M., Osterwalder J., Greber T. (2014), High quality single atomic layer deposition of hexagonal boron nitride on single crystalline Rh(111) four-inch wafers, in REVIEW OF SCIENTIFIC INSTRUMENTS
, 85(3), 035101-1-035101-4.
Cun Huanyao, Iannuzzi Marcella, Hemmi Adrian, Osterwalder Juerg, Greber Thomas (2014), Implantation Length and Thermal Stability of Interstitial Ar Atoms in Boron Nitride Nanotents, in ACS NANO
, 8(1), 1014-1021.
Hemmi Adrian, Cun Huanyao, Roth Silvan, Osterwalder Juerg, Greber Thomas (2014), Low cost photoelectron yield setup for surface process monitoring, in JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
, 32(2), 02302-1-02302-3.
Cun Huanyao, Iannuzzi Marcella, Hemmi Adrian, Osterwalder Juerg, Greber Thomas (2014), Two-Nanometer Voids in Single-Layer Hexagonal Boron Nitride: Formation via the "Can-Opener" Effect and Annihilation by Self-Healing, in ACS NANO
, 8(7), 7423-7431.
Cun Huanyao, Iannuzzi Marcella, Hemmi Adrian, Roth Silvan, Osterwalder Juerg, Greber Thomas (2013), Immobilizing Individual Atoms beneath a Corrugated Single Layer of Boron Nitride, in NANO LETTERS
, 13(5), 2098-2103.
de Lima L. H., Cun H. Y., Hemmi A., Kaelin T., Greber T. (2013), Note: An ion source for alkali metal implantation beneath graphene and hexagonal boron nitride monolayers on transition metals, in REVIEW OF SCIENTIFIC INSTRUMENTS
, 84(12), 126104-1-126104-3.
This project explores the use of boronitrene films as a passivation layer at the interface between organic films or molecular layers and a metal electrode, a configuration typically appearing in organic electronics or molecular electronics. The boron nitride nanomesh, a corrugated structure with a periodicity of 3.2 nm and a corrugation amplitude of about 0.1 nm that forms spontaneously on Rh(111), will be used for its superior inertness, its strong reduction of the metal work function, and because of its potential for enhancing the molecular order when molecular layers are grown on top of it. The guiding question will be whether such a passivation layer can improve the stability of the organic-film / metal-electrode interface by reducing detrimental effects due to the formation of chemical bonds, while at the same time enhance the electronic coupling across the interface. Experiments will aim to connect the phenomena on the nanometer scale, characterized via our surface science analytical tools, with macroscopic effects, via transport measurements across and parallel to the interface. Moreover, organic light-emitting diode (OLED) configurations will be fabricated, both macroscopically and locally via luminescence excited with an STM tip.