Study of organic photovoltaics by localized concentrated sunlight: towards optimization of charge collection in large-area solar cells

article



Manor, A.

Katz, E.A.

Andriessen, H.A.J.M.

Galagan, Y.O.
Large-area organic solar cells are known to suffer from a major efficiency decrease which originates from the combination of a voltage drop across the front electrode and the voltage-dependent photocurrent. In this letter, we demonstrate this efficiency loss on large area, indium tin oxide free cells with a hexagonal current collecting front grid, by measurements of light intensity dependence of the cell performance. The results show a major difference in the cell performance measured under localized and uniform illuminations. Subsequently, we demonstrate ways in which the current collecting efficiency could be raised. © 2011 American Institute of Physics.
Topics

















Cell performanceCharge collectionCollecting efficiencyEfficiency lossFree cellsIndium tin oxideLarge-area solar cellsLight intensityOrganic photovoltaicsOrganic solar cellUniform illuminationVoltage dropVoltage-dependent photocurrentsEfficiencyIndium compoundsTinTin oxidesCollector efficiency
TNO Identifier
461407
Repository link
https://resolver.tno.nl/uuid:716ba13d-b56b-4ce7-ae9d-5b5537ef9f7f
ISSN
0003-6951
Source
Applied Physics Letters, 99(17)
Article nr.
No.: 173305
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