Photovoltaic and photophysical properties of a novel bis-3-hexylthiophene substituted quinoxaline derivative

Serap Günes*, Derya Baran, Görkem Günbas, Funda Özyurt, Anita Fuchsbauer, Niyazi Serdar Sariciftci, Levent Toppare

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

We report on the photophysical properties and photovoltaic performance of a polythiophene derivative, poly-2,3-bis(4-tert-butylphenyl)-5,8-bis(4-hexylthiophen-2-yl)quinoxaline (PHTQ) as an electron donor in bulk heterojunction solar cells blended with the acceptor 1-(3-methoxycarbonyl)propyl-1-phenyl-[6,6]-methanofullerene (PCBM). Devices were composed of PHTQ and varying amounts of PCBM (1:1, 1:2, 1:3, 1:4 w-w ratio). The components were spin cast from ortho-dichlorobenzene (ODCB) and characterized by measuring current-voltage characteristics under simulated AM 1.5 conditions. Efficiencies up to 0.3% have been reached. Incident photon to current efficiency (IPCE) is reported and the nanoscale morphology was investigated with atomic force microscopy (AFM). Photoinduced absorption spectroscopy confirms the photoinduced charge transfer in such donor acceptor blends.

Original languageEnglish (US)
Pages (from-to)1162-1169
Number of pages8
JournalSolar Energy Materials and Solar Cells
Volume92
Issue number9
DOIs
StatePublished - Sep 1 2008

Keywords

  • Bulk heterojunction solar cells
  • Conjugated polymers
  • Electrochromic polymers
  • Novel thiophene derivative
  • Organic solar cells

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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