Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 38, Issue 36, Pages 16740-16748Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.02.114
Keywords
Light-harvesting complex II; Pigment; Photocurrent activity; Dye-sensitized solar cell
Categories
Funding
- Fundamental Research Funds for the Central Universities
- Shandong Provincial Natural Science Foundation [ZR2010BL008, ZR2009DQ010]
- National Natural Science Foundation of China [21033005, 31100263]
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Light-harvesting complex II (LHCII) was used as sensitizer in biosolar cell. To improve the cell performance, we studied the adsorbing conditions and compared the photocurrent activity of LHCII and its pigments. The maximum adsorbances were achieved at the concentration over 80 mu g chl/ml with 96 h incubation for LHCII and at the concentration over 120 mu g chl/ml with 24 h incubation for pigments. The initial performance of pigment-sensitized solar cell was superior to that of LHCII-sensitized solar cell. With the increase of adsorbance, both the short-circuit current and efficiency increased for LHCII-sensitized solar cell and pigment-sensitized solar cell. The best short-circuit current, open-circuit voltage, fill factor and efficiency were 2.26 mA/cm(2), 0.53 V, 0.69 and 0.79% for pigment-sensitized solar cells and 0.80 mA/cm(2), 0.59 V, 0.58 and 0.27% for LHCII-sensitized solar cells, respectively. The adsorption models of LHCII and pigments on TiO2 are proposed, and the strategies for further study are briefly discussed. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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