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Carrier transport and photogeneration in large area p-i-n Si/SiC heterojunctions

  • P. Louro (a1), Yu. Vygranenko (a1), R. Schwarz (a1), M. Fernandes (a1), M. Vieira (a1), J. Gloeckner (a2) and M. Schubert (a2)...

Abstract

Glass/ZnO:Al/p (SixC1−x:H)/i (Si:H)/n (SixC1−x:H)/Al (0<x<1) heterojunction cells were produced by PE-CVD at low temperature. Junction properties, carrier transport and photogeneration are investigated from illuminated current- and capacitance- voltage characteristics and spectral response measurements, in dark and under different illumination conditions. For the heterojunction cells high series resistance around 106 ω and atypical J-V characteristics are observed leading to poor fill factors, also it was observed that the responsivity decreases with the increase of the light bias intensity. For the homojunction the behaviour is typical of a non optimised p-i-n cell and the responsivity varies only slightly with the light bias conditions. A numerical simulation gives insight into the transport mechanism suggesting that in the heterojunctions and in dark conditions the transport mechanism depends almost exclusively on field-aided drift while under illumination it is dependent mainly on the diffusion of free carriers.

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[1] Bucker, H. K., Burkey, B. C., Lubberts, G. and Wolf, E. L., Appl. Phys. Lett. 23, 617 (1973).10.1063/1.1654768
[2] Vieira, M., Fernandes, M., Martins, J., Louro, P., Maçarico, A., Schwarz, R., and Schubert, M.. In Amorphous and Heterogeneous Silicon Thin Films-2000, Mat. Res. Soc. Symp. Proc., S. Francisco (USA), 2000. To be published.
[3] Fernandes, M., Louro, P., Martins, J., Maçarico, A., Schwarz, R., Vieira, M.. 14th European Conference on Solid-State Transducers, Copenhagen (Denmark), August, 27-30, 2000. To be published in Sensors and Actuators A (2000).
[4] Koch, C., Ito, M., Schubert, M., and Werner, J. H., Mat. Res. Soc. Symp. Proc, 575 (1999) 749.10.1557/PROC-557-749
[5] Vanacek, M., Kocka, J., Struchlik, J., Kosicek, Z., Stika, O. and Triska, A., Sol. Energy Mater, 8, (1983) 411.
[6] Blood, P., Orton, J. W., The Electrical Characterization of Semiconductors: Majority Carriers and Electron State (Techniques of Physics, vol. 14), ASIN: 0125286279.
[7] Hegedus, S. S., Progress in Photovoltaics: Research and Applications, 5 (1997) 151.
[8] McElheny, P. J., Arch, J. K., Lin, H. S., Fonash, S. J., J. Appl. Phys., 64 (1988) 1254.

Carrier transport and photogeneration in large area p-i-n Si/SiC heterojunctions

  • P. Louro (a1), Yu. Vygranenko (a1), R. Schwarz (a1), M. Fernandes (a1), M. Vieira (a1), J. Gloeckner (a2) and M. Schubert (a2)...

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