Skip to main content Accessibility help
×
Home

CuInS2/PEDOT Photovoltaic Structure

  • Sergei Bereznev (a1), Igor Konovalov (a2), Julia Kois (a1), Enn Mellikov (a1) and Andres Öpik (a1)...

Abstract

Structures based on combination of electrically conductive polymers with inorganic semiconductors are currently intensively investigated with the aim to prepare low-cost, largearea and flexible photovoltaic devices. In this study, multilayer structures consisting of CuInS2 (CIS) and poly(3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrenesulfonate (PSS) thin films were prepared and investigated for photovoltaic applications. Polycrystalline CIS absorber layers were synthesized on top of a layered structure on Cu tape substrate using socalled non-vacuum CISCuT technique. Thin PEDOT buffer layers doped with PSS were deposited onto KCN etched and vacuum annealed CIS films. The deposition was performed using the spin-casting technique from an aqueous dispersion of PEDOT/PSS mixed with Nmethylpyrrolidone, isopropanol, glycerin and epoxysilane additives. Optimal deposition parameters for stable PEDOT films with a good adherence to the surface of CIS were selected experimentally. The morphology and thickness of prepared films and structures was determined using SEM technique. Average film thickness was about of 1.5 μm for CIS and 50 nm for PEDOT films. Current-voltage and impedance characteristics were measured. Significant photovoltage and photocurrent of the photovoltaic structures were observed under standard illumination intensity. The best structure showed an open-circuit voltage of 510 mV and a shortcircuit current density of 20.2 mA/cm2.

Copyright

Corresponding author

*Corresponding author

References

Hide All
1. Catalano, A., Proc. 1st IEEE World Conf. on Photovoltaic Energy Conversion (Hawaii) 52 (1994).
2. Schock, H. W., Solar Energy Mat. And Solar Cells 31, 19 (1994).
3. Penndorf, J., Winkler, M., Tober, O., Röser, D., Jacobs, K., Solar Energy Mat. And Solar Cells 31, 285 (1998).
4. Wallace, G. G., Dastoor, P. C., Officer, D. L. and Too, C. O., Chemical Innovation April, 15 (2000).
5. Gurunathan, K., Murugan, A. V., Marimuthu, R., Mulik, U. P. and Amalnerkar, D. P., Mater. Chem. and Phys. 31, 173 (1999).
6. Bereznev, S., Konovalov, I., Kois, J., Mellikov, E. and Öpik, A., accepted of Organizing Committee of 21st Discussion Conference of P.M.M. / 9th International Conference ERPOS (14-18.07.2002, Prague) for publication in Macromolecular Symposia.
7. Greczynski, G., Kugler, Th., Keil, M., Osikowicz, W., Fahlman, M. and Salaneck, W.R., Journal of Electron Spectroscopy and Related Phenomena 31, 1 (2001).
8. Heeger, Alan J., Synthetic Metals 31, 23 (2002).
9. Konovalov, I., Pendorf, J., Tober, O. and Winkler, M., Proc. 17th European Photovoltaic Solar Energy Conf. 31, 1111 (2002).
10. Petty, M. C. et al., Colloids and Surfaces: Physicochem. Eng. Aspects 31, 159 (2000).

CuInS2/PEDOT Photovoltaic Structure

  • Sergei Bereznev (a1), Igor Konovalov (a2), Julia Kois (a1), Enn Mellikov (a1) and Andres Öpik (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed