Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO2 as an electron transport layer

M. Thambidurai; Jun Young Kim; Hyung Jun Song; Youngjun Ko; N. Muthukumarasamy; Dhayalan Velauthapillai; Victor W. Bergmann; Stefan A.L. Weber; Changhee Lee

doi:10.1039/c4ta00531g

Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO₂ as an electron transport layer

M. Thambidurai
, Jun Young Kim
, Hyung Jun Song
, Youngjun Ko
, N. Muthukumarasamy
, Dhayalan Velauthapillai
, Victor W. Bergmann
, Stefan A.L. Weber
, Changhee Lee

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

24 Scopus citations

Abstract

We have investigated the photovoltaic properties of inverted solar cells comprising a bulk heterojunction film of thieno[3,4-b]-thiophene/ benzodithiophene (PTB7) and [6,6]-phenyl-C₇₁-butyric acid methyl ester (PC₇₁BM), sandwiched between indium tin oxide (ITO)/Sn-doped TiO₂ front and MoO₃/aluminum back electrodes. The inverted organic solar cell (IOSC) fabricated with a Sn-doped TiO₂ film showed a significantly greater power conversion efficiency of 7.59%, compared to that of the TiO₂ film (6.70%). Further studies confirm that the improved morphology and electrical properties of the Sn-doped TiO₂ film result in reduced shunt loss and interfacial charge recombination and hence enhanced photovoltaic performance.

Original language	English
Pages (from-to)	11426-11431
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	29
DOIs	https://doi.org/10.1039/c4ta00531g
State	Published - 7 Aug 2014

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Thambidurai, M., Kim, J. Y., Song, H. J., Ko, Y., Muthukumarasamy, N., Velauthapillai, D., Bergmann, V. W., Weber, S. A. L., & Lee, C. (2014). Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO₂ as an electron transport layer. Journal of Materials Chemistry A, 2(29), 11426-11431. https://doi.org/10.1039/c4ta00531g

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title = "Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO2 as an electron transport layer",

abstract = "We have investigated the photovoltaic properties of inverted solar cells comprising a bulk heterojunction film of thieno[3,4-b]-thiophene/ benzodithiophene (PTB7) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM), sandwiched between indium tin oxide (ITO)/Sn-doped TiO2 front and MoO3/aluminum back electrodes. The inverted organic solar cell (IOSC) fabricated with a Sn-doped TiO2 film showed a significantly greater power conversion efficiency of 7.59\%, compared to that of the TiO2 film (6.70\%). Further studies confirm that the improved morphology and electrical properties of the Sn-doped TiO2 film result in reduced shunt loss and interfacial charge recombination and hence enhanced photovoltaic performance.",

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AU - Thambidurai, M.

AU - Kim, Jun Young

AU - Song, Hyung Jun

AU - Ko, Youngjun

AU - Muthukumarasamy, N.

AU - Velauthapillai, Dhayalan

AU - Bergmann, Victor W.

AU - Weber, Stefan A.L.

AU - Lee, Changhee

PY - 2014/8/7

Y1 - 2014/8/7

N2 - We have investigated the photovoltaic properties of inverted solar cells comprising a bulk heterojunction film of thieno[3,4-b]-thiophene/ benzodithiophene (PTB7) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM), sandwiched between indium tin oxide (ITO)/Sn-doped TiO2 front and MoO3/aluminum back electrodes. The inverted organic solar cell (IOSC) fabricated with a Sn-doped TiO2 film showed a significantly greater power conversion efficiency of 7.59%, compared to that of the TiO2 film (6.70%). Further studies confirm that the improved morphology and electrical properties of the Sn-doped TiO2 film result in reduced shunt loss and interfacial charge recombination and hence enhanced photovoltaic performance.

AB - We have investigated the photovoltaic properties of inverted solar cells comprising a bulk heterojunction film of thieno[3,4-b]-thiophene/ benzodithiophene (PTB7) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM), sandwiched between indium tin oxide (ITO)/Sn-doped TiO2 front and MoO3/aluminum back electrodes. The inverted organic solar cell (IOSC) fabricated with a Sn-doped TiO2 film showed a significantly greater power conversion efficiency of 7.59%, compared to that of the TiO2 film (6.70%). Further studies confirm that the improved morphology and electrical properties of the Sn-doped TiO2 film result in reduced shunt loss and interfacial charge recombination and hence enhanced photovoltaic performance.

UR - https://www.scopus.com/pages/publications/84903743146

U2 - 10.1039/c4ta00531g

DO - 10.1039/c4ta00531g

M3 - Article

AN - SCOPUS:84903743146

SN - 2050-7488

VL - 2

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JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 29

ER -

Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO₂ as an electron transport layer

Abstract

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