Controlling surface enrichment in polymeric hole extraction layers to achieve high-efficiency organic photovoltaic cells

Dong Hun Kim; Kyung Geun Lim; Jong Hyeok Park; Tae Woo Lee

doi:10.1002/cssc.201200202

Controlling surface enrichment in polymeric hole extraction layers to achieve high-efficiency organic photovoltaic cells

Dong Hun Kim, Kyung Geun Lim, Jong Hyeok Park, Tae Woo Lee

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Hole extraction in organic photovoltaic cells (OPVs) can be modulated by a surface-enriched layer formed on top of the conducting polymer-based hole extraction layer (HEL). This tunes the surface work function of the HEL to better align with the ionization potential of the polymeric photoactive layer. Results show noticeable improvement in device power conversion efficiencies (PCEs) in OPVs. We achieved a 6.1 % PCE from the OPV by optimizing the surface-enriched layer. Top job: Hole extraction in organic photovoltaic cells (OPVs) is modulated by a surface-enriched layer formed on top of the conducting polymer-based hole extraction layer (HEL). This tunes the surface work function of the HEL to better align with the ionization potential of the polymeric photoactive layer. Herein, we show a noticeable improvement in device power conversion efficiencies (PCEs) based on rational pretreatment.

Original language	English
Pages (from-to)	2053-2057
Number of pages	5
Journal	ChemSusChem
Volume	5
Issue number	10
DOIs	https://doi.org/10.1002/cssc.201200202
Publication status	Published - 2012 Oct

All Science Journal Classification (ASJC) codes

Environmental Chemistry
Chemical Engineering(all)
Materials Science(all)
Energy(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/cssc.201200202

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abstract = "Hole extraction in organic photovoltaic cells (OPVs) can be modulated by a surface-enriched layer formed on top of the conducting polymer-based hole extraction layer (HEL). This tunes the surface work function of the HEL to better align with the ionization potential of the polymeric photoactive layer. Results show noticeable improvement in device power conversion efficiencies (PCEs) in OPVs. We achieved a 6.1 % PCE from the OPV by optimizing the surface-enriched layer. Top job: Hole extraction in organic photovoltaic cells (OPVs) is modulated by a surface-enriched layer formed on top of the conducting polymer-based hole extraction layer (HEL). This tunes the surface work function of the HEL to better align with the ionization potential of the polymeric photoactive layer. Herein, we show a noticeable improvement in device power conversion efficiencies (PCEs) based on rational pretreatment.",

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Controlling surface enrichment in polymeric hole extraction layers to achieve high-efficiency organic photovoltaic cells

Abstract

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