Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00071 : Optimization of open circuit voltage in parallel solar cell tandems
Author:
Significant improvement of the solar cell efficiency is achieved by
combining solar cells into tandems. Matching of the open circuit voltages
(V$_{oc})$ of individual cells is required in order to maximize the
efficiency of the parallel tandem. However practically it is hard to achieve
because usually individual cells of the tandem absorb light at different
wavelengths and produce very different V$_{oc}$. Mismatch of open circuit
voltages results in deteriorated performance of a parallel tandem. In this
work we use circuit analysis to determine parameters of parallel tandem's
individual cells that guarantee its most efficient operation. The results of
our calculations can be used for optimization of individual solar cells when
designing a parallel tandem.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.71
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