Issue 6, 2013

Highly efficient plasmonic organic optoelectronic devices based on a conducting polymerelectrode incorporated with silver nanoparticles

Abstract

Highly efficient ITO-free polymeric electronic devices were successfully demonstrated by replacement of the ITO electrode with a solution-processed PEDOT:PSS electrode containing Ag nanoparticles (NPs). Polymer solar cells (PSCs) and light emitting diodes (PLEDs) were fabricated based on poly(5,6-bis(octyloxy)-4-(thiophen-2-yl)benzo[c][1,2,5]thiadiazole) (PTBT):PC61BM and Super Yellow as a photoactive layer, respectively. The surface plasmon resonance (SPR) effect and improved electrical conductivity by the Ag NPs clearly contributed to increments in light absorption/emission in the active layer as well as the conductivity of the PEDOT:PSS electrode in PSCs and PLEDs. The ITO-free bulk heterojunction PSCs showed a 1% absolute enhancement in the power conversion efficiency (3.27 to 4.31%), and the power efficiency of the PLEDs was improved by 124% (3.75 to 8.4 lm W−1) compared to the reference devices without Ag NPs. The solution-processable conducting polymer, PEDOT:PSS with Ag NPs, can be a promising electrode for large area and flexible optoelectronic devices with a low-cost fabrication process.

Graphical abstract: Highly efficient plasmonic organic optoelectronic devices based on a conducting polymer electrode incorporated with silver nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
19 Jan 2013
Accepted
18 Apr 2013
First published
19 Apr 2013

Energy Environ. Sci., 2013,6, 1949-1955

Highly efficient plasmonic organic optoelectronic devices based on a conducting polymer electrode incorporated with silver nanoparticles

S. Ko, H. Choi, W. Lee, T. Kim, B. R. Lee, J. Jung, J. Jeong, M. H. Song, J. C. Lee, H. Y. Woo and J. Y. Kim, Energy Environ. Sci., 2013, 6, 1949 DOI: 10.1039/C3EE40190A

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