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Nile red based dye D–π–A as a promising material for solar cell applications

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Abstract

A recently reported Nile red (NR) dye conjugated with benzothiadiazole species paves the way for the development of novel organic-based sensitizers used in solar cells whose structures are susceptible to modifications. Thus, six novel NR structures were derived from two previously developed structures in laboratories. In this study, density functional theory (DFT) calculations and time-dependent DFT (TD-DFT) were used to determine the optoelectronic properties of the NR-derived moieties such as absorption spectra. Various linkers were investigated in an attempt to understand the impact of π-linkers on the optoelectronic properties. According to the findings, the presence of furan species led to the planarity of the molecule and a reduction in the band gap between the LUMO and the HOMO. Each one of the aforementioned molecules exhibited great delocalization of π-electrons. Based on the TD-DFT calculations, two furans had the highest value for the red-shift. There is an excellent correlation observed between the computed optoelectronic properties and calculated HOMO-LUMO gaps. In conclusion, the current work aimed at clarifying the impact of π-linkers on the photophysical properties of the NR-derived moieties. Also, the current study provided useful insights into the development of novel species used in optoelectronic devices.

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Authors and Affiliations

  1. Department of Physics, College of Science, University of Kirkuk, Kirkuk, Iraq

    Mohanad Q. Kareem

  2. Department of Chemistry, College of Science, University of Anbar, Anbar, Iraq

    Ghufran Sh. Jassim

  3. Department of Biomedical Engineering, Al-Mustaqbal University College, Babylon, Iraq

    Rasha Fadhel Obaid

  4. Department of Civil Engineering, Dijlah University College, Al-Masafi Street, Baghdad, 00964, Iraq

    Mohanad Hatem Shadhar

  5. Department of Medical Laboratory Techniques, Dijlah University College, Baghdad, 10021, Iraq

    Mustafa M. Kadhim

  6. Medical Laboratory Techniques Department, Al-Farahidi University, Baghdad, Iraq

    Mustafa M. Kadhim

  7. College of Medical Technology, Islamic University, Kufa Street, 54001, Najaf, Iraq

    Haider A. Almashhadani

  8. Dentistry Department, Al-Rasheed University College, Baghdad, Iraq

    Haider A. Almashhadani

  9. Medical Laboratory Techniques Department, Al-Turath University, Baghdad, Iraq

    Haider A. Almashhadani

  10. Independent Researcher, Bangalore, Karnataka, India

    A. Sarkar

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  1. Mohanad Q. Kareem
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  2. Ghufran Sh. Jassim
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  6. Haider A. Almashhadani
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Kareem, M.Q., Jassim, G.S., Obaid, R.F. et al. Nile red based dye D–π–A as a promising material for solar cell applications. Chem. Pap. 76, 6167–6174 (2022). https://doi.org/10.1007/s11696-022-02290-1

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