High current densities in a highly photoluminescent organic single-crystal light-emitting transistor

Sawabe, Kosuke; Takenobu, Taishi; Bisri, Satria Zulkarnaen; Yamao, Takeshi; Hotta, Shu; Iwasa, Yoshihiro
July 2010
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p043307
Academic Journal
We report the improvement of electron transport in 5,5″-bis(biphenylyl)-2,2′:5′,2″-terthiophene (BP3T) single crystals on a field-effect transistor configuration by systematically investigating the effects of device aging under pure nitrogen and optimizing the organic dielectric layer-fabrication process. We reduced the effect of electron traps and achieved extremely high current densities up to 10 kA/cm2, which is one or two orders of magnitude greater than the current densities achieved in previous devices.


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