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 language | English |
|---|---|
| Pages (from-to) | 1688-1695 |
| Number of pages | 8 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 9 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics
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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 journal › Article
TY - JOUR
T1 - Fabrication and photovoltaic characterization of bio-sensitized solar cells using myoglobin-based sensitizers
AU - Chang, Chih Wei
AU - Chang, Chin Hao
AU - Lu, Hsueh Pei
AU - Wu, Tung Kung
AU - Wei-Guang Diau, Eric
PY - 2009/3/1
Y1 - 2009/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=66349085031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66349085031&partnerID=8YFLogxK
U2 - 10.1166/jnn.2009.SI05
DO - 10.1166/jnn.2009.SI05
M3 - Article
C2 - 19435026
AN - SCOPUS:66349085031
VL - 9
SP - 1688
EP - 1695
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
SN - 1533-4880
IS - 3
ER -