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

Chinna Bathula, Sachin Badgujar, Ningaraddi S. Belavagi, Sang Kyu Lee, Youngjong Kang, Imitiyaz Ahmed M. Khazi

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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.

Original languageEnglish
Pages (from-to)371-376
Number of pages6
JournalJournal of Fluorescence
Volume26
Issue number1
DOIs
StatePublished - 1 Jan 2016

Keywords

  • Benzodithiophene
  • Conjugate polymers
  • Diketopyrrolopyrole
  • Optoelectronic stidies
  • Stille reaction

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