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

Dept. of Safety Engineering

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.",

author = "M. Thambidurai and Kim, \{Jun Young\} and Song, \{Hyung Jun\} and Youngjun Ko and N. Muthukumarasamy and Dhayalan Velauthapillai and Bergmann, \{Victor W.\} and Weber, \{Stefan A.L.\} and Changhee Lee",

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T1 - Enhanced power conversion efficiency of inverted organic solar cells by using solution processed Sn-doped TiO2 as an electron transport layer

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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