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Proceedings Paper

Investigation of charge injection characteristics in diketopyrrolopyrrole ambipolar semiconducting polymers
Author(s): Seon Jeng Lee; Seok Heon Jung; Jin-Kyun Lee; Cheawon Kim; Mi Jung Lee
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Paper Abstract

A semiconducting polymers with conjugated diketopyrrolopyrrole (DPP) unit was developed for high performance ambipolar organic field-effect transistors (OFETs). We report electrical characteristics of DPP OFETs in various ways which measured transistor and inverter performance with various bias conditions and self-assembled monolayers (SAMs) treatment. Ambipolar DPP conjugated polymer OFETs showed high hole and electron mobility of μh=0.57 cm2V-1s-1 and μe=0.51 cm2V-1s-1 with O2 plasma treatment and 1-decanethiol SAMs treatment, respectively with annealing at 100°C. Contact resistance effect on mobilities was investigated by measuring contact resistance during device operation through gated four-point probe (gFPP) and simultaneous contact resistance extraction model directly from current voltage characteristics.

Paper Details

Date Published: 7 October 2014
PDF: 8 pages
Proc. SPIE 9185, Organic Field-Effect Transistors XIII; and Organic Semiconductors in Sensors and Bioelectronics VII, 918512 (7 October 2014); doi: 10.1117/12.2061658
Show Author Affiliations
Seon Jeng Lee, Kookmin Univ. (Korea, Republic of)
Seok Heon Jung, Inha Univ. (Korea, Republic of)
Jin-Kyun Lee, Inha Univ. (Korea, Republic of)
Cheawon Kim, Kookmin Univ. (Korea, Democratic Peoples Republic of)
Mi Jung Lee, Kookmin Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9185:
Organic Field-Effect Transistors XIII; and Organic Semiconductors in Sensors and Bioelectronics VII
Zhenan Bao; Ruth Shinar; Ioannis Kymissis; Iain McCulloch, Editor(s)

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