Transcript Organic Electronics

Organic Electronics
Wu Bin
Inorganic Vs. Organic
Material Properties
Limitations At Early Stage
 Organic materials have often proved to be
unstable.
 Making reliable electrical contacts to organic
thin films is difficult.
 When exposed to air, water, or ultraviolet light,
their electronic properties can degrade rapidly.
 The low carrier mobilities characteristic of
organic materials obviates their use in highfrequency (greater than 10 MHz) applications.
These shortcomings are compounded by the
difficulty of both purifying and doping the
materials.
Inorganic Vs. Organic
LEDs
Molecular Orbitals
Organic LED Energy Diagram
Organic Thin Film Transistors
(OTFTs)
Organic material
Organic material
An Example of an I-V of OTFTs
Lg = 20 µm
W = 220 µm
400 nm SiO2
50 nm organic