Title:
Integrated organic photovoltaic modules with a scalable voltage output

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Yoo, SeungHyup
Potscavage, William J., Jr.
Domercq, Benoit
Kim, Jungbae
Holt, J.
Kippelen, Bernard
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Abstract
Efficient organic photovoltaic modules and cells have been fabricated based on a blend of poly(3-hexylthiophene) (P3HT) and a soluble C₇ ₀ derivative, [6,6]-phenyl C₇ ₁ butyric acid methyl ester (PCBM-70). Power conversion efficiency of P3HT/PCBM-70 cells is estimated at 4.1% for the AM1.5 G condition from the spectra of external quantum efficiency. Integrated photovoltaic modules, in which N- individual P3HT/PCBM-70 cells (N = 1–4) are connected in series, exhibit a short-circuit current /[subscript SC] of 1.4±0.1 mA and an open-circuit voltage V[subscript OC ]of N×0.621 V with a maximum VOC of 2.48 V for N = 4 under simulated solar illumination (AM1.5 G, 85 mW/cm2).
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2006-12
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