Abstract: . . .  Wiesbaden). [7] Arici, E., Hoppe, H., Sariciftci, N. S., & Meissner, D. (2001). ‘‘CIS plastic solar cells’’ presented at the 17th European Photovoltaic Solar Energy Conference. Munich, Germany. ¨ [8] Bereznev, S., Kois, J., Mellikov, E., Opik, A., & Meissner, D. (2001). ‘‘CuInSe2/Polypyyrole photovoltaic structure prepared by electro-deposition’’ presented at the 17th European Photovoltaic Solar Energy Conference. Munich, Germany. [9] Colvin, V. L., Schlamp, M. C., & Alivisatos, A. P. (1994). Nature, 370, 354. [10] Narayan, K. S., Manoj, A. G., Nanda, J., & Sama, D. D. (1999). Appl. Phys. Lett., 74, 871. ¨ [11] Gao, M., Lesser, C., Kirstein, S., Mohwald, H., Rogach, A. L., Weller, H. (2000). J. Appl. Phys., 87 (5), 2297. ¨ [12] Czekelius, C., Hilgendorff, . . .
. . .  characterization of films consisting of quantized CuInS2 nanoparticles have been studied. The particle were shielded by an organic surfactant TPP, which prevents the aggregation and partly passivates the particle surface among others also against oxidation. Layers of the quantized CIS/TPP particles were prepared by spin-coating. Probably due to the insufficient charge transport properties or not obtimized contacts to the back electrodes the photovoltaic response of these devices are rather poor. On the other hand, the diodes clearly show [256]/136 E. Arici et al. photoconductivity. Further work is needed to optimize the photovoltaic parameters. By introduction of a strong electron acceptor layer (PCBM), between the CIS layer and the Al electrode we . . .
. . .  the CIS//PCBM double layer exhibits a better diode behavior with a typical current versus voltage response as shown in Figure 4. Illuminating cells with 80 mW/cm2 white light from a solar simulator produces open circuit voltages of 712 to 792 mV and short circuit current densities of ca. 0.26 mA/cm2. The calculated fill factor of the diode is 0.44. Photovoltaic Properties of Nanocrystalline CuInS2/Methanofullerene. . . [255]/135 FIGURE 4 Dependence of the short circuit current on the incident light intensity of ITO/PEDOT:PSS/ CIS/ LiF/Al (squares) and ITO/PEDOT:PSS/ CIS/ PCBM/LiF/Al (circles) solar cells. a is the scaling exponent discussed in the text. A conversion efficiency up to 0.09% is obtained. The rectification ratio at þ/À2 V is 2,6 in the . . .
. . .  (1993). In Solarzellen-Physikalische Grundlagen und Anwendungen in der Photovoltaik. (Vieweg & Sohn: Wiesbaden). [7] Arici, E., Hoppe, H., Sariciftci, N. S., & Meissner, D. (2001). ‘‘CIS plastic solar cells’’ presented at the 17th European Photovoltaic Solar Energy Conference. Munich, Germany. ¨ [8] Bereznev, S., Kois, J., Mellikov, E., Opik, A., & Meissner, D. (2001). ‘‘CuInSe2/Polypyyrole photovoltaic structure prepared by electro-deposition’’ presented at the 17th European Photovoltaic Solar Energy Conference. Munich, Germany. [9] Colvin, V. L., Schlamp, M. C., & Alivisatos, A. P. (1994). Nature, 370, 354. [10] Narayan, K. S., Manoj, A. G., Nanda, J., & Sama, D. D. (1999). Appl. Phys. Lett., 74, 871. ¨ [11] Gao, M., Lesser, C., Kirstein, . . .
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