Scaling up ITO-Free solar cells
article
Indium-tin-oxide-free (ITO-free) polymer solar cells with composite electrodes containing current-collecting grids and a semitransparent poly(3,4-ethylenedioxythiophene):polystyrenesulfonate) (PEDOT:PSS) conductor are demonstrated. The up-scaling of the length of the solar cell from 1 to 6 cm and the effect of the grid line resistance are explored for a series of devices. Laser-beam-induced current (LBIC) mapping is used for quality control of the devices. A theoretical modeling study is presented that enables the identification of the most rational cell dimension for the grids with different resistances. The performance of ITO-free organic solar cells with different dimensions and different electrode resistances are evaluated for different light intensities. The current generation and electric potential distribution are found to not be uniformly distributed in large-area devices at simulated 1 Sun illumination. The generated current uniformity increases with decreasing light intensities. The up-scaling of indium-tin-oxide-free (ITO-free) solar cells from 1 to 6 cm in length and the effect of grid line resistance are explored for a series of devices. Theoretical modeling enables the identification of the most rational cell dimensions and illustrates the electric potential field in the devices. Performance of the ITO-free organic solar cells with different dimensions and different electrode resistances are evaluated for different light intensities. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
TNO Identifier
489128
ISSN
16146832
Source
Advanced Energy Materials, 4(2)
Article nr.
1300498
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