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Enhanced photon harvesting in OPV using optical reflective surface

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Abstract

A new device architecture has been employed in the fabrication of organic solar cell using light-reflective background. We found significant improvement on the short circuit current in bulkheterojunction (BHJ) solar cell using smooth light-reflective surface as the background. The reflective surface presumably acts as an optical spacer in the standard BHJ device structure which enhances the generation and dissociation of exciton with in the photoactive layer. It is found that the power conversion efficiency grew by threefold to that of the value without reflective background.

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Acknowledgment

This work is based on the research supported by the National Research Foundation (NRF) (Ref. No.: CPRR13090833946 & IFR: 13011716181), South Africa.

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  1. School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville, 3209, South Africa

    Genene Tessema Mola

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  1. Genene Tessema Mola
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Correspondence to Genene Tessema Mola.

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Mola, G.T. Enhanced photon harvesting in OPV using optical reflective surface. Appl. Phys. A 118, 425–429 (2015). https://doi.org/10.1007/s00339-014-8886-1

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  • DOI: https://doi.org/10.1007/s00339-014-8886-1

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