Abstract
We report on the measurement of local current flow in hydrogenated amorphous and nanocrystalline mixed-phase n-i-p silicon solar cells in the initial, light-soaked, and annealed states using conductive atomic force microscopy (C-AFM). The C-AFM measurement shows that the nanometer-size grains aggregate and the local current densities in the nanocrystalline aggregation areas significantly decreased after light soaking and recovered to similar values as the initial state after annealing at a high temperature in vacuum. This result supports the two-parallel-connected-diode model for explaining the light-induced open-circuit voltage increase in the mixed-phase solar cells.
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References
K. Lord, B. Yan, J. Yang, and S. Guha, Appl. Phys. Lett. 79, 3800 (2001).
J. Yang, K. Lord, B. Yan, A. Banerjee, S. Guha, D. Han, and K. Wang, Mat. Res. Soc. Symp. Proc. 715, 601 (2002).
D. L. Staebler and C. R. Wronski, Appl. Phys. Lett. 31, 292 (1977).
B. Yan, J. Yang, and S. Guha, Proc. of 3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan, 2003, p. 1627.
B. Yan, C.-S. Jiang, H. R.Moutinho, M. M. Al-Jassim, and J. Yang, S. Guha, Mat. Res. Soc. Symp.Proc., A23.6 (2006); B. Yan, C.-S. Jiang, C. W. Teplin, H. R. Moutinho, M. M. Al-Jassim, J. Yang, and S. Guha, J. Appl. Phys. 101, 033711 (2007).
C.-S. Jiang, H. R. Moutinho, M.M. Al-Jassim, L. L. Kazmerski, B. Yan, J. M. Owens, J. Yang, and S. Guha, Proc. of 4th World Conference on Photovoltaic Energy Conversion, Hawaii, USA, 2006, p. 1552.
B. Rezek, J. Stuchlík, A. Fejfar, and J. Kočka, J. Appl. Phys. 92, 587 (2002).
D. Azulay, I. Balberg, V. Chu, J. P. Conde, and O. Millo, Phys. Rev. B 71, 113304 (2005).
X.-Z Bo, L. P. Rokhinson, Y. Haizhou, D. C. Tsui, and J. C. Sturm, Appl. Phys. Lett. 81, 3263 (2002)
S. Myhra, Appl. Phys. A76 63 (2003).
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Jiang, C., Yan, B., Moutinho, H.R. et al. Light Soaking and Thermal Annealing Effects on the Micro-Electrical Properties of Amorphous and Nanocrystalline Mixed-phase Silicon Solar Cells. MRS Online Proceedings Library 989, 205 (2006). https://doi.org/10.1557/PROC-0989-A02-05
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DOI: https://doi.org/10.1557/PROC-0989-A02-05