%0 Journal Article
%T Current-Voltage Characteristics of the Metal / Organic Semiconductor / Metal Structures: Top and Bottom Contact Configuration Case
%A £¿ar¨±nas ME£¿KINIS
%A Mindaugas PUC£¿TA
%A K£¿stutis £¿LAPIKAS
%A Sigitas TAMULEVI£¿IUS
%J Materials Science
%D 2013
%I Kaunas University of Technology
%R 10.5755/j01.ms.19.1.3816
%X In present study five synthesized organic semiconductor compounds have been used for fabrication of the planar metal / organic semiconductor / metal structures. Both top electrode and bottom electrode configurations were used. Current-voltage (I-V) characteristics of the samples were investigated. Effect of the hysteresis of the I-V characteristics was observed for all the investigated samples. However, strength of the hysteresis was dependent on the organic semiconductor used. Study of I-V characteristics of the top contact Al/AT-RB-1/Al structures revealed, that in (0 ¨C 500) V voltages range average current of the samples measured in air is only slightly higher than current measured in nitrogen ambient. Deposition of the ultra-thin diamond like carbon interlayer resulted in both decrease of the hysteresis of I-V characteristics of top contact Al/AT-RB-1/Al samples. However, decreased current and decreased slope of the I-V characteristics of the samples with diamond like carbon interlayer was observed as well. I-V characteristic hysteresis effect was less pronounced in the case of the bottom contact metal/organic semiconductor/metal samples. I-V characteristics of the bottom contact samples were dependent on electrode metal used. DOI: http://dx.doi.org/10.5755/j01.ms.19.1.3816
%K organic semiconductor
%K metal-semiconductor contacts
%K spin coating
%K current-voltage characteristics
%K charge transport mechanism
%U http://www.matsc.ktu.lt/index.php/MatSc/article/view/3816