Fabrication and photovoltaic characterization of bio-sensitized solar cells using myoglobin-based sensitizers

Chih Wei Chang, Chin Hao Chang, Hsueh Pei Lu, Tung Kung Wu, Eric Wei-Guang Diau

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Myoglobin (Mb), reconstituted zinc protoporphyrin-apomyoglobin (ZnMb), and eosin-modified ZnMb (EoZnMb) were used as photosensitizers to functionalize TiO 2 nanocrystalline films for bio-sensitized solar-cell (BSSC) applications. For the Mb-sensitized SC, the poor cell performance was due to a reduction Fe(lll) - Fe(ll) that produces a photocurrent density of the device smaller than its unsensitized counterpart. The efficiencies of power conversion of both ZnMb and EoZnMb-sensitized SC were enhanced about ten times due to superior charge separation between TiO 2 and the protein, and due to smaller current leakage between TiO2 and the electrolyte. The cell performances of the BSSC devices are discussed in terms of an equivalent-circuit model.

Original languageEnglish
Pages (from-to)1688-1695
Number of pages8
JournalJournal of Nanoscience and Nanotechnology
Volume9
Issue number3
DOIs
Publication statusPublished - 2009 Mar 1

Fingerprint

myoglobin
Myoglobin
Eosine Yellowish-(YS)
Solar cells
solar cells
Fabrication
fabrication
Photosensitizing Agents
Photosensitizers
polarization (charge separation)
cells
Photocurrents
equivalent circuits
Leakage currents
Equivalent circuits
Electrolytes
photocurrents
Zinc
leakage
zinc

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Chang, Chih Wei ; Chang, Chin Hao ; Lu, Hsueh Pei ; Wu, Tung Kung ; Wei-Guang Diau, Eric. / Fabrication and photovoltaic characterization of bio-sensitized solar cells using myoglobin-based sensitizers. In: Journal of Nanoscience and Nanotechnology. 2009 ; Vol. 9, No. 3. pp. 1688-1695.
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Fabrication and photovoltaic characterization of bio-sensitized solar cells using myoglobin-based sensitizers. / Chang, Chih Wei; Chang, Chin Hao; Lu, Hsueh Pei; Wu, Tung Kung; Wei-Guang Diau, Eric.

In: Journal of Nanoscience and Nanotechnology, Vol. 9, No. 3, 01.03.2009, p. 1688-1695.

Research output: Contribution to journalArticle

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