Effect of molecular-level insulation on the performance of a dye-sensitized solar cell: Fluorescence studies in solid state

Na'Il Saleh, Salah Al-Trawneh, Hmoud Al-Dmour, Samir Al-Taweel, John P. Graham

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The performance of a dye-sensitized solar cell (DSSC) that is based on the host-guest encapsulation of 5-[4-diphenylamino)phenyl]thiophene-2-cyanoacrylic acid (L1) inside β-cyclodextrin hosts has been tested. The formation of the complex in the solid state and when adsorbed on TiO2 was characterized using steady and picosecond time-resolved emission techniques, as well as time dependent DFT calculations. The molecular-level insulation has led to a small enhancement in the energy-conversion performance of the fabricated DSSC with the best results being an increase in the open circuit voltage (Voc) from 0.7 to 0.8 V. The importance of the present investigation lies in the unique spectroscopic characterizations of the examined materials in the solid state.

Original languageEnglish
Pages (from-to)59-68
Number of pages10
JournalJournal of Fluorescence
Volume25
Issue number1
DOIs
Publication statusPublished - Jan 2015

Keywords

  • Quantum calculations
  • Solid state
  • Time-resolved fluorescence spectroscopy
  • Triphenylamine
  • β-cyclodextrins

ASJC Scopus subject areas

  • Biochemistry
  • Spectroscopy
  • Clinical Biochemistry

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