Please use this identifier to cite or link to this item:
|Title:||Tuning the hole injection barrier at the organic/metal interface with self-assembled functionalized aromatic thiols|
|Authors:||Chen, W. |
|Citation:||Chen, W., Huang, C., Gao, X.Y., Wang, L., Zhen, C.G., Qi, D., Chen, S., Zhang, H.L., Loh, K.P., Chen, Z.K., Wee, A.T.S. (2006-12-28). Tuning the hole injection barrier at the organic/metal interface with self-assembled functionalized aromatic thiols. Journal of Physical Chemistry B 110 (51) : 26075-26080. ScholarBank@NUS Repository. https://doi.org/10.1021/jp065821q|
|Abstract:||Self-assembled functionalized aromatic thiols (oligophenylenes composed of building blocks of dimethoxy-substituted phenylenes, perfluoro-substituted phenylenes, and a terminal thiol group) were used to tune the hole injection barrier (Δh) of copper(II) phthalocyanine (CuPc) on Au(111). Synchrotron-based high-resolution photoemission spectroscopy study reveals a significant reduction of Δh by as much as 0.75 eV from Δh = 0.9 eV for CuPc/Au(111) to Δh = 0.15 eV for CuPc/BOF/Au(111), where BOF represents 4-pentafluorophenyl-1-(p-thiophenyl)- 2,5-dimethoxybenzene. The delocalized π orbitals of these functionalized aromatic thiols greatly facilitate effective charge transfer (hole or electron) across the SAM interface as compared to alkanethiols, hence making this novel interface modification scheme a simple and effective way to tune the hole injection barrier. This method has potential applications in molecular electronics, organic light-emitting diodes (OLED), organic field-effect transistors (OFETs), and organic solar cells. © 2006 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry B|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 14, 2019
WEB OF SCIENCETM
checked on Jan 7, 2019
checked on Jan 11, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.