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Decay of the OSC PV parameters under continuous (a) AM1.5 illumination and (pentagon) air exposure at , (filled circle) vacuum at , and (open circle) vacuum at , and (b) consecutive spectral irradiation through filters RG850, RG715, OG570, and GG495. The dashed lines correspond to numerical fits by the stretched exponential function.
Absorption spectra of CuPc and layers on quartz substrates deposited under the same conditions as for the preparation of solar cells. The dashed vertical lines depict the wavelength range that causes the steeper decay of OSC PV parameters in Fig. 1(b).
(a) Diode ideality factors vs temperature and (b) Arrhenius plots of the saturation current densities corrected by of a non-air-exposed OSC ( molar ratio).
Values of amplitude with the units of the respective OSC PV parameter (, , , ) and the fitting parameters , , and obtained for devices under continuous illumination and (I) air exposure and , (II) vacuum and , and (III) vacuum and in Fig. 1(a).
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