Jaehyung Hwang | Researchain

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Applied Physics Letters | 2007

Energy level alignment between 9-phosphonoanthracene self-assembled monolayers and pentacene

Ian G. Hill; Jaehyung Hwang; Antoine Kahn; Chiao-Ti Huang; J. E. McDermott; Jeffrey Schwartz

The alignment of molecular energy levels between a self-assembled monolayer of 9-phosphonoanthracene formed on silicon dioxide and pentacene has been studied using photoelectron spectroscopies. The semiconducting band gap of pentacene was found to be nested within that of the monolayer, resulting in a 1.3±0.1eV barrier for hole injection from pentacene into the monolayer. The corresponding barrier to electrons, estimated from the adiabatic highest occupied molecular orbital/lowest unoccupied molecular orbital gaps of anthracene and pentacene, is 0.3±0.2eV. Thus, the monolayer presents a significant energetic barrier to hole injection from a pentacene overlayer, but only a small to moderate barrier to electrons.

Materials Science & Engineering R-reports | 2009

Energetics of metal–organic interfaces: New experiments and assessment of the field

Jaehyung Hwang; Alan Wan; Antoine Kahn

Organic Electronics | 2006

Spectroscopic study on sputtered PEDOT · PSS: Role of surface PSS layer

Jaehyung Hwang; Fabrice Amy; Antoine Kahn

Organic Electronics | 2005

Impact of electrode contamination on the α-NPD/Au hole injection barrier

Alan Wan; Jaehyung Hwang; Fabrice Amy; Antoine Kahn

Journal of Physical Chemistry C | 2007

Photoelectron spectroscopic study of the electronic band structure of polyfluorene and fluorene-arylamine copolymers at interfaces

Jaehyung Hwang; Eung-Gun Kim; Jie Liu; Jean-Luc Brédas; and Anil Duggal; Antoine Kahn

Organic Electronics | 2008

Improving charge injection in organic thin-film transistors with thiol-based self-assembled monolayers

Patrick Marmont; Nicolas Battaglini; Philippe Lang; Gilles Horowitz; Jaehyung Hwang; Antoine Kahn; Claire Amato; Patrick Calas

Journal of Physical Chemistry B | 2006

Energy level and band alignment for GaAs-alkylthiol monolayer-Hg junctions from electrical transport and photoemission experiments

Guy Nesher; Ayelet Vilan; Hagai Cohen; David Cahen; Fabrice Amy; Calvin K. Chan; Jaehyung Hwang; Antoine Kahn

Journal of Physical Chemistry A | 2007

Organophosphonate Self-Assembled Monolayers for Gate Dielectric Surface Modification of Pentacene-Based Organic Thin-Film Transistors: A Comparative Study †

J. E. McDermott; Matthew G. McDowell; Ian G. Hill; Jaehyung Hwang; Antoine Kahn; Steven L. Bernasek; Jeffrey Schwartz

Journal of Physical Chemistry B | 2005

Effect of molecular binding to a semiconductor on metal/molecule/semiconductor junction behavior.

Hossam Haick; Jamal Ghabboun; Olivia Niitsoo; Hagai Cohen; David Cahen; Ayelet Vilan; Jaehyung Hwang; Alan Wan; Fabrice Amy; Antoine Kahn

Advanced Functional Materials | 2009

Hole Injection in a Model Fluorene–Triarylamine Copolymer

Hon Hang Fong; Alexis Papadimitratos; Jaehyung Hwang; Antoine Kahn; George G. Malliaras

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