Abstract
We demonstrate the use of n-type N,N′-ditridecyl-3,4,9,10- perylenetetracarboxylic diimide (PTCDI-C13) bottom contact organic field-effect transistors that employ photopatternable highly conductive poly(3,4- ethylenedioxythiophene):tosylate (PEDOT:Tos) source/drain electrodes characterized by a very low work function (4.3 eV). Due to the low work function of this material, the electron injection barrier between PTCDI-C13 and PEDOT:Tos was 0.25 eV lower than that between PTCDI-C13 and gold. The low injection barrier reduced the contact resistance, yielding a high field effect mobility in transistors based on PEDOT:Tos (0.145 cm2/Vs); the field effect mobility was 16 times higher than that in transistors based on gold (0.009 cm2/Vs).
Original language | English |
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Pages (from-to) | 516-519 |
Number of pages | 4 |
Journal | Organic Electronics |
Volume | 12 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2011 |
Keywords
- Conductive polymer
- Low work function
- Source/drain electrodes
- n-Type organic field-effect transistor