Title:
Indium tin oxide-free and metal-free semitransparent organic solar cells
Indium tin oxide-free and metal-free semitransparent organic solar cells
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Zhou, Yinhua
Cheun, Hyeunseok
Choi, Seungkeun
Potscavage, William J., Jr.
Fuentes-Hernandez, Canek
Kippelen, Bernard
Cheun, Hyeunseok
Choi, Seungkeun
Potscavage, William J., Jr.
Fuentes-Hernandez, Canek
Kippelen, Bernard
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Abstract
We report on indium tin oxide (ITO)-free and metal-free semitransparent organic solar cells with a high-conductivity poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) (PH1000) as both the bottom and the top electrodes. The PH1000 film showed a conductivity of 680±50 S/cm. A ZnO layer was used as an interlayer to produce an electron-selective electrode. The semitransparent devices with a structure of glass/PH1000/ZnO/poly(3-hexylthiophene):phenyl-C ₆₁-butyric acid methyl ester/PEDOT:PSS (CPP 105 D)/PH1000 exhibited an average power conversion efficiency of 1.8% estimated for 100 mW/cm² air mass 1.5 global illumination. This geometry alleviates the need of vacuum deposition of a top electrode.
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2010-10
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