scholarly journals Tuning of Metal Work Functions with Self-Assembled Monolayers

2005 ◽  
Vol 17 (5) ◽  
pp. 621-625 ◽  
Author(s):  
B. de Boer ◽  
A. Hadipour ◽  
M. M. Mandoc ◽  
T. van Woudenbergh ◽  
P. W. M. Blom
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Work Functions ◽  
Self Assembled ◽  
Metal Work

scholarly journals Tuning of metal work functions with self-assembled monolayers

2004 ◽  
Author(s):  
Bert de Boer ◽  
Afshin Hadipour ◽  
Remko Foekema ◽  
Teunis van Woudenbergh ◽  
Magda M. Mandoc ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Work Functions ◽  
Self Assembled ◽  
Metal Work

scholarly journals Tuning of Metal Work Functions with Self-Assembled Monolayers

2005 ◽  
Vol 871 ◽  
Author(s):  
B. de Boer ◽  
A. Hadipour ◽  
M. M. Mandoc ◽  
P. W. M. Blom
Keyword(s):  
Modified Electrodes ◽  
Photovoltaic Cell ◽  
Silver Electrode ◽  
Hole Injection ◽  
Self Assembled Monolayers ◽  
Polymer Leds ◽  
Assembled Monolayers ◽  
Work Functions ◽  
Self Assembled ◽  
Metal Work

AbstractWe demonstrate the tuning of metal work functions by chemically modifying the metal surface through the formation of chemisorbed self-assembled monolayers (SAMs) derived from 1H,1H,2H,2H-perfluorinated alkanethiols and hexadecanethiol. The ordering inherent in the SAMs creates an effective, molecular dipole at the metal/SAM interface, which increased the work function of Ag (φAg∼4.4 eV) to 5.5 eV (Δφ∼1.1 eV) for 1H,1H,2H,2H-perfluorinated alkanethiols. Hexadecanethiol on the other hand shifted φAg to 3.8 eV (Δφ ∼0.6 eV). On Au, the SAM of 1H,1H,2H,2H-perfluorodecanethiol raised φAu (4.9 eV) with 0.6 eV to 5.5 eV, whereas hexadecanethiol decreased φAu by 0.8 eV. These chemically modified electrodes were applied in the fabrication of polymer LEDs and the hole injection into poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene (MEH-PPV) was investigated. An Ohmic contact for hole injection between a silver electrode functionalized with the perfluorinated SAMs, and MEH-PPV with a HOMO of 5.3 eV was established. Conversely, a silver electrode modified with a SAM of hexadecanethiol lowered φAg to 3.8 eV blocked the hole injection into PPV, which enables studying the electron transport in composite devices. The electron-only current was measured in a polymer/polymer blend photovoltaic cell based on MDMO-PPV (as donor) and poly[oxa-1,4-phenylene-(1-cyano-1,2-vinylene)-(2-methoxy-5-(3′,7′-dimethyloctyloxy)-phenylene)-1,2-(2-cyanovinylene)-1,4-phenylene] (PCNEPV, acceptor). This method demonstrates a simple and attractive approach to modify and improve metal/organic contacts in organic electronic devices like LEDs, photovoltaic cells, and FETs.

Electrochemical Fabrication of Surface Chemical Gradients in Thiol Self-Assembled Monolayers with Tailored Work-Functions

Langmuir ◽  
2014 ◽  
Vol 30 (39) ◽  
pp. 11591-11598 ◽  
Author(s):  
Giulia Fioravanti ◽  
Francesca Lugli ◽  
Denis Gentili ◽  
Vittoria Mucciante ◽  
Francesca Leonardi ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Surface Chemical ◽  
Chemical Gradients ◽  
Assembled Monolayers ◽  
Work Functions ◽  
Self Assembled ◽  
Electrochemical Fabrication

Concomitant tuning of metal work function and wetting property with mixed self-assembled monolayers

2011 ◽  
Vol 12 (1) ◽  
pp. 148-153 ◽  
Author(s):  
Chun-Yu Chen ◽  
Kun-Yang Wu ◽  
Yu-Chiang Chao ◽  
Hsiao-Wen Zan ◽  
Hsin-Fei Meng ◽  
...  
Keyword(s):  
Work Function ◽  
Self Assembled Monolayers ◽  
Metal Work Function ◽  
Assembled Monolayers ◽  
Wetting Property ◽  
Self Assembled ◽  
Metal Work

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled
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