Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells

Jung Wook Lee; Soo Hyoung Lee; Yong Hoon Kim; Sung Kyu Park

doi:10.1007/s00339-014-8407-2

Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells

Jung Wook Lee, Soo Hyoung Lee, Yong Hoon Kim, Sung Kyu Park

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

4 Scopus citations

Abstract

A simple and versatile route of forming sol-gel-derived metal oxide n-type electron transport layers (ETLs) for flexible inverted polymer solar cells (PSCs) is proposed using low-temperature photochemical activation process. The photochemical activation, which is induced by deep ultraviolet irradiation on sol-gel films, allows formation of metal oxide n-type ETLs such as zinc oxide (ZnO) and indium gallium zinc oxide films at a low temperature. Compared to poly(3-hexylthiophene)/phenyl-C₆₁-butyric acid methyl ester inverted PSCs with thermally annealed ZnO ETLs (optimized efficiency of 3.26 ± 0.03 %), the inverted PSCs with photo-activated ZnO ETLs showed an improved efficiency of 3.60 ± 0.02 %. The enhanced photovoltaic property is attributed to efficient charge collection from low overall series resistance and high surface area-to-geometric area ratio by the photo-activated ZnO ETLs.

Original language	English
Pages (from-to)	2087-2093
Number of pages	7
Journal	Applied Physics A: Materials Science and Processing
Volume	116
Issue number	4
DOIs	https://doi.org/10.1007/s00339-014-8407-2
State	Published - Sep 2014
Externally published	Yes

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title = "Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells",

abstract = "A simple and versatile route of forming sol-gel-derived metal oxide n-type electron transport layers (ETLs) for flexible inverted polymer solar cells (PSCs) is proposed using low-temperature photochemical activation process. The photochemical activation, which is induced by deep ultraviolet irradiation on sol-gel films, allows formation of metal oxide n-type ETLs such as zinc oxide (ZnO) and indium gallium zinc oxide films at a low temperature. Compared to poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester inverted PSCs with thermally annealed ZnO ETLs (optimized efficiency of 3.26 ± 0.03 \%), the inverted PSCs with photo-activated ZnO ETLs showed an improved efficiency of 3.60 ± 0.02 \%. The enhanced photovoltaic property is attributed to efficient charge collection from low overall series resistance and high surface area-to-geometric area ratio by the photo-activated ZnO ETLs.",

author = "Lee, \{Jung Wook\} and Lee, \{Soo Hyoung\} and Kim, \{Yong Hoon\} and Park, \{Sung Kyu\}",

year = "2014",

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doi = "10.1007/s00339-014-8407-2",

language = "English",

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journal = "Applied Physics A: Materials Science and Processing",

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T1 - Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells

AU - Lee, Jung Wook

AU - Lee, Soo Hyoung

AU - Kim, Yong Hoon

AU - Park, Sung Kyu

PY - 2014/9

Y1 - 2014/9

N2 - A simple and versatile route of forming sol-gel-derived metal oxide n-type electron transport layers (ETLs) for flexible inverted polymer solar cells (PSCs) is proposed using low-temperature photochemical activation process. The photochemical activation, which is induced by deep ultraviolet irradiation on sol-gel films, allows formation of metal oxide n-type ETLs such as zinc oxide (ZnO) and indium gallium zinc oxide films at a low temperature. Compared to poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester inverted PSCs with thermally annealed ZnO ETLs (optimized efficiency of 3.26 ± 0.03 %), the inverted PSCs with photo-activated ZnO ETLs showed an improved efficiency of 3.60 ± 0.02 %. The enhanced photovoltaic property is attributed to efficient charge collection from low overall series resistance and high surface area-to-geometric area ratio by the photo-activated ZnO ETLs.

AB - A simple and versatile route of forming sol-gel-derived metal oxide n-type electron transport layers (ETLs) for flexible inverted polymer solar cells (PSCs) is proposed using low-temperature photochemical activation process. The photochemical activation, which is induced by deep ultraviolet irradiation on sol-gel films, allows formation of metal oxide n-type ETLs such as zinc oxide (ZnO) and indium gallium zinc oxide films at a low temperature. Compared to poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester inverted PSCs with thermally annealed ZnO ETLs (optimized efficiency of 3.26 ± 0.03 %), the inverted PSCs with photo-activated ZnO ETLs showed an improved efficiency of 3.60 ± 0.02 %. The enhanced photovoltaic property is attributed to efficient charge collection from low overall series resistance and high surface area-to-geometric area ratio by the photo-activated ZnO ETLs.

UR - https://www.scopus.com/pages/publications/84906309608

U2 - 10.1007/s00339-014-8407-2

DO - 10.1007/s00339-014-8407-2

M3 - Article

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SN - 0947-8396

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JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 4

ER -

Low-temperature photo-activated inorganic electron transport layers for flexible inverted polymer solar cells

Abstract

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