期刊
DYES AND PIGMENTS
卷 100, 期 -, 页码 278-285出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2013.07.037
关键词
Dye-sensitized solar cells; Porphyrin structure; Photovoltaic; beta Position; Linker; Sonogashira coupling
资金
- National Natural Science Foundation of China [21076147]
- Natural Science Foundation of Tianjin [10JCZDJC23700]
- dependent Innovation Foundation of Tianjin University
- International S&T Cooperation Program of China [2012DFG41980]
Two sets of meso-tetraphenylzincporphyrins have been synthesized via Sonogashira coupling and Knoevenagel condensation. The photophysical and electrochemical measurements have been performed for each dye, and the photovoltaic properties of all porphyrin-based dye-sensitized solar cells (DSSCs) have been evaluated. For different linkers on beta position, meso-substituents show different affections for DSSCs' performances. The matching degree of the length of linker and the size of meso-substituent could be a key point in porphyrin structure that affect the cell performance of DSSC based on porphyrin sensitizers. The highest cell performance was achieved with lid as a sensitizer and ethanol as an immersing solvent: a short-circuit photocurrent density of 9.75 mA cm(-2), an open-circuit voltage of 0.71 V, a fill factor of 0.73, and a light to electricity conversion efficiency of 5.08% under the AM 1.5 sunlight. (C) 2013 Elsevier Ltd. All rights reserved.
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