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PEDOT:PSS: CuNW-based transparent composite electrodes for high-performance and flexible organic photovoltaics under indoor lighting

Title
PEDOT:PSS: CuNW-based transparent composite electrodes for high-performance and flexible organic photovoltaics under indoor lighting
Authors
Ahsan Saeed M.Hyeon Kim S.Baek K.Hyun J.K.Youn Lee S.Won Shim J.
Ewha Authors
현가담
SCOPUS Author ID
현가담scopus
Issue Date
2021
Journal Title
Applied Surface Science
ISSN
0169-4332JCR Link
Citation
Applied Surface Science vol. 567
Keywords
Conductive polymersCopper nanowiresFlexible organic photovoltaicsLow-intensity lighting conditionsPower conversion efficiencyTransparent composite electrode
Publisher
Elsevier B.V.
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Highly efficient and mechanically resilient transparent electrodes for indoor organic photovoltaics (OPVs) have attracted significant interest based on the emergence of the internet of things. In this study, transparent composite electrodes (TCEs) were fabricated by blending copper nanowires (CuNWs) with the conductive polymer poly (3, 4-ethylenedioxythiophene): poly (styrene-sulfonic acid) (PEDOT:PSS, PH1000). The optimized PEDOT:PSS: CuNW-based TCEs exhibited a high transmittance of approximately 90% at a wavelength of 460 nm, excellent flexibility with a change in resistance < 1.0%, and a smooth surface morphology with a root-mean-squared roughness value of 1.85 nm. As a result, the TCE-based flexible OPVs demonstrated an outstanding power conversion efficiency (PCE) of 17.6% ± 0.2% under 1000-lx light-emitting diode illumination, which is approximately 25% higher than that of OPVs with a reference indium-tin-oxide (ITO) electrode. Additionally, they exhibited exceptional mechanical durability while retaining 85% of their original PCE after bending 500 times with a bending radius of 3.8 mm. These results suggest that the excellent optoelectronic properties of the proposed TCEs should make them promising alternatives to costly ITO electrodes, thereby improving the economic feasibility and stability of indoor OPVs. © 2021 Elsevier B.V.
DOI
10.1016/j.apsusc.2021.150852
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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