Selenophene based benzodithiophene polymers as potential candidates for optoelectronic applications

Chinna Bathula, Shubhangi Khadtare, Kezia Buruga, Abhijit Kadam, Nabeen K. Shrestha, Yong Young Noh

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

This work reports on the synthesis and characterization of two novel conjugated polymers consisting of selenophene substituted benzo[1,2-b:4,5-b′]dithiophene (SeBDT) donor, and dithienothiadiazole[3,4-c]pyridine(DTPyT)-P1 or thieno[3,4]pyrroledione(TPD)-P2 acceptors. The synthesized polymers are characterized for the significant photophysical prerequisites essential for organic electronics such as strong and broad optical absorption, thermal stability, and compatible highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels. The polymers are thermally stable up to 280–370 °C, and the optical band gaps for P1, P2 calculated from their film absorption edges are found to be 1.53 and 1.84 eV, respectively. In addition, the electrochemical studies of P1, P2 reveal the HOMO and LUMO energy levels of −5.02,-5.04 eV, and −3.49, −3.20 eV, respectively, suggesting these materials to be potential candidates for the applications in organic electronics.

Original languageEnglish
Pages (from-to)639-643
Number of pages5
JournalDyes and Pigments
Volume149
DOIs
StatePublished - Feb 2018

Keywords

  • Conjugated polymers
  • Optoelectronics
  • Selenophene
  • Stilles reaction

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