TITLE

Electroluminescence from a pentacene based ambipolar organic field-effect transistor

AUTHOR(S)
Schidleja, Martin; Melzer, Christian; Von Seggern, Heinz
PUB. DATE
March 2009
SOURCE
Applied Physics Letters;3/23/2009, Vol. 94 Issue 12, p123307
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter light emission from a pentacene-based ambipolar organic field-effect transistor is reported. Electroluminescence appears from a narrow region extending over the entire transistor channel width. The position of the light-emitting recombination zone is spatially controllable by the applied voltages. The current/voltage characteristics of the ambipolar device exhibit a hysteresis caused by trapped electrons in the transistor channel, which is also mirrored in the voltage dependent position of the light-emitting region. From the voltage dependence of the light intensity it can be concluded that Ohmic contacts are formed between pentacene and the utilized metal contacts calcium and gold.
ACCESSION #
37259549

 

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