An optical spacer is no panacea for light collection in organic solar cells

• The role of an optical spacer layer has been examined by optical simulations of organic solar cells with various bandgaps. The simulations have been performed with the transfer matrix method and the finite element method. The results show that no beneficial effect can be expected by adding an optical spacer to a solar cell with an already optimized active layer thickness.

Nyckelord

energy gap

finite element analysis

organic semiconductors

solar cells

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