Optimized inverted polymer solar cells incorporating Cs2CO3-doped C60 as electron transport layer

Anthony Barbot; Bruno Lucas; Catherine Di Bin; Bernard Ratier; Matt Aldissi

doi:10.1063/1.4807388

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Optimized inverted polymer solar cells incorporating Cs2CO3-doped C60 as electron transport layer

Anthony Barbot ¹ Bruno Lucas ¹ Catherine Di Bin ¹ Bernard Ratier ¹ Matt Aldissi ¹

1 XLIM-MINACOM - MINACOM

XLIM - XLIM

Abstract : An efficient charge transfer between co-sublimed cesium carbonate (Cs2CO3) and fullerene C60 provides an n-type material exhibiting an electrical conductivity above 1 S/cm. This type of doped layers can be used in organic optoelectronic devices to reduce ohmic losses at organic-electrode interfaces. We report here an analysis of inverted polymer-based solar cells incorporating Cs2CO3 doped C60 as electron transport layer (ETL). The optimization of both dopant concentration and thickness resulted in a maximum efficiency of 3.79% compared to 3% for similar devices using undoped C60 as ETL and 2.13% for devices without any ETL.

Keywords : cesium compounds charge transfer states conducting polymers doping profiles electrical conductivity fullerenes organic semiconductors solar cells

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https://hal-unilim.archives-ouvertes.fr/hal-00934909
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Soumis le : mercredi 22 janvier 2014 - 17:23:21
Dernière modification le : mercredi 22 décembre 2021 - 11:58:04

Optimized inverted polymer solar cells incorporating Cs2CO3-doped C60 as electron transport layer

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