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Proceedings Paper

Schottky diode made on cellulose paper with PEDOT:PSS and pentacene
Author(s): Yi Chen; K. J. Han; K. H. Yoo; K. S. Kang; Jaehwan Kim
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Paper Abstract

Significant amount of pentacene can be dissolved in N-methylpyrrolidone (NMP) solvent. The solution color changed from deep purple to intense yellow. As the dissolution time increased, UV-visible absorption increased and several new absorption peaks were appeared. The solution was mixed with poly(3,4-ethylenedioxythiophene)poly(styrenesulfonate) (PEDOT:PSS). PEDOT:PSS or PEDOT:PSS doped with pentacene was spin-coated to the Al coated substrate. Au-electrode was fabricated on top of the semiconductor. Three-layered Schottkys diode comprised of Al, PEDOT:PSS or PEDOT:PSS-pentacene, and Au with thickness of 150nm, 420nm, and 1200nm, respectively were fabricated. The current densities of 4.8μA/cm2 at 2.5MV/m and 440μA/cm2 at 1.9MV/m were obtained for the Au/PEDOT:PSS/Al and Au/PEDOT:PSS-pentacene (3.2 mg)/Al Schottky diodes, respectively. The current density of Schottky diode enhanced about two order of magnitude by doping pentacene to PEDOT:PSS.

Paper Details

Date Published: 26 March 2008
PDF: 5 pages
Proc. SPIE 6931, Nanosensors and Microsensors for Bio-Systems 2008, 69310A (26 March 2008); doi: 10.1117/12.776581
Show Author Affiliations
Yi Chen, Inha Univ. (South Korea)
K. J. Han, Inha Univ. (South Korea)
K. H. Yoo, Inha Univ. (South Korea)
K. S. Kang, Inha Univ. (South Korea)
Jaehwan Kim, Inha Univ. (South Korea)


Published in SPIE Proceedings Vol. 6931:
Nanosensors and Microsensors for Bio-Systems 2008
Vijay K. Varadan, Editor(s)

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