Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Should A Good Organic Solar Cell Be A Good Organic LED?

Version 1 : Received: 14 August 2020 / Approved: 15 August 2020 / Online: 15 August 2020 (05:21:17 CEST)

How to cite: Kozyreff, G.; Godefroid, B. Should A Good Organic Solar Cell Be A Good Organic LED?. Preprints 2020, 2020080338 (doi: 10.20944/preprints202008.0338.v1). Kozyreff, G.; Godefroid, B. Should A Good Organic Solar Cell Be A Good Organic LED?. Preprints 2020, 2020080338 (doi: 10.20944/preprints202008.0338.v1).

Abstract

We revisit the argument that link the efficiency of a solar cell to its reverse operation as a LED, in the case where the material is organic. In organic cells, exciton transport is an intermediate process between sunlight absorption and the generation of electric current. We show that quenching exciton radiation can be beneficial to cell efficiency, without contradicting the general rule prevailing for semiconductor cells. Our treatment allows us to discuss both bulk heterojunction and planar junctions.

Subject Areas

organic solar cells; heterojunction; IQE; organic LED

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