Effect of sol-gel-derived ZnO interfacial layer on the photovoltaic properties of polymer solar cells

Jun Young Kim; Hyunkoo Lee; Jungho Park; Donggu Lee; Hyung Jun Song; Jeonghun Kwak; Changhee Lee

doi:10.1143/JJAP.51.10NE29

Effect of sol-gel-derived ZnO interfacial layer on the photovoltaic properties of polymer solar cells

Jun Young Kim, Hyunkoo Lee, Jungho Park, Donggu Lee, Hyung Jun Song, Jeonghun Kwak, Changhee Lee

Dept. of Safety Engineering

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

2 Scopus citations

Abstract

The effect of a zinc oxide (ZnO) interfacial layer on the device performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was studied. When a 15 nm ZnO layer was inserted between the active layer (P3HT:PCBM) and Al electrode, the power conversion efficiency (PCE) was increased by approximately 10% as compared to that without ZnO layer. From the systematic analysis of the current-voltage and impedance characteristics of devices with and without the ZnO layer at various temperatures and light intensities, we found that the device with the ZnO layer has a lower activation energy for carrier extraction and bimolecular recombination loss compared with that without the ZnO layer. Therefore, the enhanced efficiency of the device with ZnO is mainly attributed to the enhanced extraction efficiency and thereby increased short-circuit current density.

Original language	English
Article number	10NE29
Journal	Japanese Journal of Applied Physics
Volume	51
Issue number	10 PART 2
DOIs	https://doi.org/10.1143/JJAP.51.10NE29
State	Published - Oct 2012

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title = "Effect of sol-gel-derived ZnO interfacial layer on the photovoltaic properties of polymer solar cells",

abstract = "The effect of a zinc oxide (ZnO) interfacial layer on the device performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was studied. When a 15 nm ZnO layer was inserted between the active layer (P3HT:PCBM) and Al electrode, the power conversion efficiency (PCE) was increased by approximately 10% as compared to that without ZnO layer. From the systematic analysis of the current-voltage and impedance characteristics of devices with and without the ZnO layer at various temperatures and light intensities, we found that the device with the ZnO layer has a lower activation energy for carrier extraction and bimolecular recombination loss compared with that without the ZnO layer. Therefore, the enhanced efficiency of the device with ZnO is mainly attributed to the enhanced extraction efficiency and thereby increased short-circuit current density.",

author = "Kim, {Jun Young} and Hyunkoo Lee and Jungho Park and Donggu Lee and Song, {Hyung Jun} and Jeonghun Kwak and Changhee Lee",

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T1 - Effect of sol-gel-derived ZnO interfacial layer on the photovoltaic properties of polymer solar cells

AU - Kim, Jun Young

AU - Lee, Hyunkoo

AU - Park, Jungho

AU - Lee, Donggu

AU - Song, Hyung Jun

AU - Kwak, Jeonghun

AU - Lee, Changhee

PY - 2012/10

Y1 - 2012/10

N2 - The effect of a zinc oxide (ZnO) interfacial layer on the device performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was studied. When a 15 nm ZnO layer was inserted between the active layer (P3HT:PCBM) and Al electrode, the power conversion efficiency (PCE) was increased by approximately 10% as compared to that without ZnO layer. From the systematic analysis of the current-voltage and impedance characteristics of devices with and without the ZnO layer at various temperatures and light intensities, we found that the device with the ZnO layer has a lower activation energy for carrier extraction and bimolecular recombination loss compared with that without the ZnO layer. Therefore, the enhanced efficiency of the device with ZnO is mainly attributed to the enhanced extraction efficiency and thereby increased short-circuit current density.

AB - The effect of a zinc oxide (ZnO) interfacial layer on the device performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was studied. When a 15 nm ZnO layer was inserted between the active layer (P3HT:PCBM) and Al electrode, the power conversion efficiency (PCE) was increased by approximately 10% as compared to that without ZnO layer. From the systematic analysis of the current-voltage and impedance characteristics of devices with and without the ZnO layer at various temperatures and light intensities, we found that the device with the ZnO layer has a lower activation energy for carrier extraction and bimolecular recombination loss compared with that without the ZnO layer. Therefore, the enhanced efficiency of the device with ZnO is mainly attributed to the enhanced extraction efficiency and thereby increased short-circuit current density.

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 10 PART 2

M1 - 10NE29

ER -

Effect of sol-gel-derived ZnO interfacial layer on the photovoltaic properties of polymer solar cells

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