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Effects of the pyromellitic dianhydride cathode interfacial layer on characteristics of organic solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester

Published online by Cambridge University Press:  31 January 2011

Mi Ran Moon
Affiliation:
Department of Physics, Brain Korea 21 Physics Research Division, Institute of Basic Science, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
Jungwoo Kim
Affiliation:
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
Donggeun Jung*
Affiliation:
Department of Physics, Brain Korea 21 Physics Research Division, Institute of Basic Science, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
Hyoungsub Kim
Affiliation:
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
Heeyeop Chae
Affiliation:
Department of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
Junsin Yi
Affiliation:
School of Information and Communication Engineering, Sungkyunkwan University, Suwon, 440-746 Republic of Korea
*
a)Address all correspondence to this author. e-mail: djung@skku.ac.kr
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Abstract

This study examined the performance of poly(3-hexylthiophene-2,5-diyl)(P3HT)- and [6,6]-phenyl C61 butyric acid methyl ester (PCBM)-based organic solar cells (OSCs) with a pyromellitic dianhydride (PMDA) cathode interfacial layer between the active layer and cathode. The effect of inserting the cathode interfacial layer with different thicknesses was investigated. For the OSC samples with a 0.5 nm thick PMDA layer, the power conversion efficiency (PCE) was approximately 2.77% under 100 mW/cm2 (AM1.5) simulated illumination. It was suggested that the PMDA cathode interfacial layer acts as an exciton blocking layer, leading to an enhancement of the OSC performance.

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Copyright
Copyright © Materials Research Society 2010

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Effects of the pyromellitic dianhydride cathode interfacial layer on characteristics of organic solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester
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Effects of the pyromellitic dianhydride cathode interfacial layer on characteristics of organic solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester
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Effects of the pyromellitic dianhydride cathode interfacial layer on characteristics of organic solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester
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