Dye sensitized solar cells

TiO2 sensitization with a bodipy-porphyrin antenna system

Chang Yeon Lee, Joseph T Hupp

Research output: Contribution to journalArticle

184 Citations (Scopus)

Abstract

A zinc porphyrin derivative (2) and zinc porphyrin-bodipy dyad (3) have been prepared and applied to dye-sensitized solar cells (DSSCs). On the basis of absorption and fluorescence excitation spectra, dyad 3 efficiently transfers energy from the bodipy to zinc porphyrin constituent. The 3-sensitized solar cell demonstrates higher solar spectral coverage, based on incident photon to current efficiency (IPCE) spectra, and an improved power conversion efficiency (η = 1.55%) compared to that of the 2-sensitized cell (η = 0.84%). The better performance of the 3-sensitized cell is attributed largely to the gain in spectral absorbance provided by the bodipy constituent of 3. Also evident, however, are secondary effects reflecting (a) fill-factor improvement and (b) a slight gain in porphyrin red-edge absorbance due to bodipy-conjugate formation.

Original languageEnglish
Pages (from-to)3760-3765
Number of pages6
JournalLangmuir
Volume26
Issue number5
DOIs
Publication statusPublished - Mar 2 2010

Fingerprint

Porphyrins
porphyrins
antennas
solar cells
dyes
Antennas
Zinc
zinc
Energy transfer
Conversion efficiency
Solar cells
Photons
cells
Fluorescence
Derivatives
energy transfer
fluorescence
Dye-sensitized solar cells
zinc hematoporphyrin
photons

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Dye sensitized solar cells : TiO2 sensitization with a bodipy-porphyrin antenna system. / Lee, Chang Yeon; Hupp, Joseph T.

In: Langmuir, Vol. 26, No. 5, 02.03.2010, p. 3760-3765.

Research output: Contribution to journalArticle

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