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International Journal of Photoenergy
Volume 2017 (2017), Article ID 7818914, 10 pages
https://doi.org/10.1155/2017/7818914
Research Article

Simulation Results: Optimization of Contact Ratio for Interdigitated Back-Contact Solar Cells

1University of Missouri at Kansas City, Kansas City, MO, USA
2New Jersey Institute of Technology, Newark, NJ, USA

Correspondence should be addressed to Vinay Budhraja

Received 27 July 2017; Revised 18 September 2017; Accepted 25 September 2017; Published 14 December 2017

Academic Editor: Yanfa Yan

Copyright © 2017 Vinay Budhraja et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the fabrication of interdigitated back contact (IBC) solar cells, it is very important to choose the right size of contact to achieve the maximum efficiency. Line contacts and point contacts are the two possibilities, which are being chosen for IBC structure. It is expected that the point contacts would give better results because of the reduced recombination rate. In this work, we are simulating the effect of contact size on the performance of IBC solar cells. Simulations were done in three dimension using Quokka, which numerically solves the charge carrier transport. Our simulation results show that around 10% of contact ratio is able to achieve optimum cell efficiency.