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

• DOI: 10.1039/c3ee40190a
• Publication Date: 2013-04-19T11:01:03Z
• Authors: Seo-Jin Ko; Hyosung Choi; Wonho Lee; Taehyo Kim; Bo Ram Lee; Jae-Woo Jung; Jong-Ryul Jeong; Myoung Hoon Song; Jeong Chul Lee; Han Young Woo; Jin Young Kim
• Keywords: Photoactive layer; Solution process

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