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3-Hexyl-2,5-diphenylthiophene:phenylene vinylene-based conjugated polymer for solar cells application

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A conjugated polymer, poly(3-hexyl-2,5-diphenylthiophene)-p-bisdodecyloxy-phenylene vinylene) (CP) was synthesized whose chemical structure was confirmed by 1H-NMR and FTIR. CP possesses electrochemical band gap of 2.19 eV, determined by cyclic voltammetry (CV), and low laying highest occupied molecular orbital (HOMO) energy level (5.24 eV). Acting as an electron donor, CP was mixed with electron acceptor PC61BM in (1:1, w/w) to fabricate the photoactive layer. The resultant CP:PC61BM (1:1, w/w) based polymer solar cell (PSC) under AM 1.5G (100 mWcm− 2) showed power conversion efficiency (PCE) of 2.66% with an open-circuit voltage (VOC) of 678 mV, a short circuit current density (JSC) of 7.711 mA/cm2 and a fill factor (FF) of 50%. Band gap of CP calculated by Density functional theory (DFT) measurement was determined to 2.04 eV, which was in good agreement with the experimental value obtained by CV.

Original languageEnglish
Pages (from-to)218-222
Number of pages5
JournalDyes and Pigments
Volume144
DOIs
StatePublished - Sep 2017

Bibliographical note

Publisher Copyright:
© 2017

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
  • Density functional theory
  • Open-circuit voltage
  • Photoactive solar cell

ASJC Scopus subject areas

  • General Chemical Engineering
  • Process Chemistry and Technology

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