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http://dx.doi.org/10.4313/JKEM.2021.34.2.115

Investigation of Transparent Electrodes for Solution-Processed Organic Solar Cells  

Lee, Sumin (School of Electronics Engineering, Chungbuk National University)
Kang, Moon Hee (School of Electronics Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.34, no.2, 2021 , pp. 115-120 More about this Journal
Abstract
In this study, composite transparent electrodes were fabricated either from a conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) or silver nanowire (AgNW). Three transparent electrodes such as PEDOT:PSS, PEDOT:PSS and AgNW mixture, and AgNW were fabricated. As for a transparent electrode, measured sheet resistance values were 89.6, 60.6 and 28.6 Ω/sq, and the transmittance values were 80.2, 82.0 and 83.8% while surface roughness (Rq) values were 4.1, 8.1, 20.4 nm for PEDOT:PSS, PEDOT:PSS and AgNW mixture, and AgNW, respectively. To verify the overall performance of these composite electrodes, we applied these electrodes to the top electrode of the solution-processed organic solar cells (OSCs). PEDOT:PSS provided the best performance with a fill factor (FF) of 51.2% and a photoconversion efficiency (PCE) of 2.2%, while traditional metal top electrode OSC provided FF of 60.5% and PCE of 3.1%.
Keywords
Transparent electrode; PEDOT:PSS; Silver nanowire; Solution-processed; Organic solar cell;
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