2006/04/28 by Behrang H. Hamadani, B. H. Hamadani, David A. Corley +7
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Organic Electronics and Photovoltaics #Semiconductor materials and devices #cond-mat.mtrl-sci
paper · pdf · doi:10.1021/nl060731i
published as Nano Lett. 6, 1303-1306 (2006) · 5 pages, 2 figures. Supplementary information available upon request
openalex publication_date 2006/04/28 · arxiv created 2006/05/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We have studied charge injection across the metal/organic semiconductor interface in bottom-contact poly(3-hexylthiophene) (P3HT) field-effect transistors, with Au source and drain electrodes modified by self-assembled monolayers (SAMs) prior to active polymer deposition. By using the SAM to engineer the effective Au work function, we markedly affect the charge injection process. We systematically examine the contact resistivity and intrinsic channel mobility and show that chemically increasing the injecting electrode work function significantly improves hole injection relative to untreated Au electrodes.