Mixed self-assembled monolayer gate dielectrics for low-voltage solution-processed polymer field-effect transistors

2015 ◽  
Vol 3 (6) ◽  
pp. 1181-1186 ◽  
Author(s):  
T. V. A. G. de Oliveira ◽  
A. Eleta ◽  
L. E. Hueso ◽  
A. M. Bittner
Keyword(s):  
Carboxylic Acid ◽  
Phosphonic Acid ◽  
Field Effect ◽  
Low Voltage ◽  
Gate Dielectrics ◽  
Field Effect Transistors ◽  
Self Assembled Monolayer ◽  
Solution Processed ◽  
Carboxylic Acid Groups ◽  
Self Assembled

Highly insulating gate dielectrics based on AlOx and on mixed phosphonic-acid SAMs terminated with methyl/carboxylic acid groups are demonstrated.

Solution Processed Self-Assembled Monolayer Gate Dielectrics for Low-Voltage Organic Transistors

2008 ◽  
Vol 1114 ◽  
Author(s):  
James Ball ◽  
Paul H Wöbkenberg ◽  
Florian Colléaux ◽  
Floris B Kooistra ◽  
Jan C Hummelen ◽  
...  
Keyword(s):  
Surface Energy ◽  
Organic Semiconductors ◽  
Low Voltage ◽  
Gate Dielectrics ◽  
Field Effect Transistors ◽  
High Volume ◽  
Organic Transistors ◽  
Self Assembled Monolayer ◽  
Solution Processed ◽  
Self Assembled

AbstractLow-voltage organic transistors are sought for implementation in high volume low-power portable electronics of the future. Here we assess the suitability of three phosphonic acid based self-assembling molecules for use as ultra-thin gate dielectrics in low-voltage solution processable organic field-effect transistors. In particular, monolayers of phosphonohexadecanoic acid in metal-monolayer-metal type sandwich devices are shown to exhibit low leakage currents and high geometrical capacitance comparable to previously demonstrated self-assembled monolayer (SAM) type dielectrics but with a higher surface energy. The improved surface energy characteristics enable processing of a wider range of organic semiconductors from solution. Transistors based on a number of solution-processed organic semiconductors with operating voltages below 2 V are also demonstrated.

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