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Poly(phenylene cyanovinylenes) carbazole based conjugated polymer as a photosensitizer for dye-sensitized solar cells

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A carbazole based new n-type conjugated polymer (CP) has been synthesized and employed as a photosensitizer in polymer-sensitized solar cells (PSSCs). The synthesis of CP was accomplished by the reaction of appropriate monomer dialdehyde with aromatic dinitriles, under Knoevenagel condensation conditions followed by its characterization by 1H NMR and FT-IR. The band gap of CP measured by cyclic voltammetry (CV), density functional theory (DFT) and diffuse reflectance (DR) UV-vis spectroscopy revealed closely matched values of 2.57, 2.47, and 2.64 eV respectively. Under the illumination of AM1.5G (100 mW cm−2), CP based PSSCs exhibited power conversion efficiency of 2.08% with a short-circuit current density (JSC) of 7.0 mA/cm2, an open-circuit voltage (Voc) of 534 mV and a fill factor (FF) of 55.85%.

Original languageEnglish
Pages (from-to)56-59
Number of pages4
JournalMaterials Letters
Volume231
DOIs
StatePublished - 15 Nov 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Conjugated polymer
  • Narrow band gap
  • PSSC
  • Photosensitizer

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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