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Synthesis, Characterization and Optoelectronic Properties of Benzodithiophene Based Copolymers for Application in Solar Cells

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Abstract

This paper reports on the synthesis and characterization of novel donor–acceptor (D-A) conjugated polymers containing triisopropylsilylethyny(TIPS)benzo[1,2-b:4,5-b′]dithiophene-diketopyrrolopyrrole (P1 and P2) through Stille co-polymerization method. Thermal stability, optical and electrochemical properties of these polymers were determined. Optical band gaps of the polymers as calculated from their film onset absorption edges were found to be 1.46 and 1.44 eV, respectively. Electrochemical studies revealed HOMO and LUMO energy levels to be −5.22, −5.60 eV, and −3.76, −4.16 eV, respectively. The polymers were thermally stable up to 400–440 °C. Optoelectronic studies indicated that these materials to be promising candidates in solar cell applications.

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Acknowledgments

We gratefully acknowledge the support by Basic Science Research Program through National Research Foundation of Korea (NRF) funded by the Ministry of Education (2012R1A6A1029029). NRF funded by the Ministry of Science, ICT & Future Planning (2013 M3C8A3075845), and Samsung Research Funding Center of Samsung Electronics under Project Number SRFC-MA1401-05.

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Authors and Affiliations

  1. Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 305-600, Republic of Korea

    Chinna Bathula, Sachin Badgujar & Sang Kyu Lee

  2. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nanoscience and Technology, Hanyang University, Seoul, 133-791, Republic of Korea

    Chinna Bathula & Youngjong Kang

  3. Nanomaterials Science and Engineering Major, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, South Korea

    Sachin Badgujar & Sang Kyu Lee

  4. Department of Chemistry, Karnatak University, Dharwad, -580 003, India

    Ningaraddi S. Belavagi & Imitiyaz Ahmed M. Khazi

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  1. Chinna Bathula
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  2. Sachin Badgujar
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  3. Ningaraddi S. Belavagi
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  4. Sang Kyu Lee
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  5. Youngjong Kang
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  6. Imitiyaz Ahmed M. Khazi
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Correspondence to Chinna Bathula.

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Bathula, C., Badgujar, S., Belavagi, N.S. et al. Synthesis, Characterization and Optoelectronic Properties of Benzodithiophene Based Copolymers for Application in Solar Cells. J Fluoresc 26, 371–376 (2016). https://doi.org/10.1007/s10895-015-1724-9

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  • DOI: https://doi.org/10.1007/s10895-015-1724-9

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