Residential College | false |
Status | 已發表Published |
Highly efficient dye-sensitized solar cells using phenothiazine derivative organic dyes | |
Xie Z.1; Midya A.1; Loh K.P.1; Adams S.1; Blackwood D.J.1; Wang J.1; Zhang X.1; Chen Z.2 | |
2010-12-01 | |
Source Publication | Progress in Photovoltaics: Research and Applications |
ISSN | 10627995 1099159X |
Volume | 18Issue:8Pages:573-581 |
Abstract | Two novel organic dyes have been synthesized using electron rich phenothiazine as electron donors and oligothiophene vinylene as conjugation spacers. The two dyes (2E)-2-cyano-3-(5-(5-((E)-2-(10-(2-ethylhexyl)-10H- phenothiazin-7-yl)vinyl)thiophen-2-yl)thiophen-2-yl)acrylic acid (PTZ-1) and (2E)-3-(5-(5-(4,5-bis((E)-2-(10-(2-ethylhexyl)-10H-phenothiazin-3-yl)vinyl) thiophen-2-yl)thiophen-2-yl)thiophen-2-yl)-2-cyanoacrylic acid (PTZ-2) were fully characterized and employed in dye-sensitized solar cells (DSCs) to explore the effect of disubstituted donors on photovoltaic (PV) performance. The solar cells sensitized by the PTZ1 dye have a high IPCE plateau of 80% and achieve a short-circuit photocurrent density of 12.98 mA/cm, an open-circuit voltage of 0.713 V, and a fill factor (ff) of 66.6%, corresponding to a conversion efficiency of 6.17% under AM 1.5 100 mW/cm illumination. The different performance of the solar cells based on the two dyes can be understood from the studies of the electron kinetics by electrochemical impedance spectroscopy (EIS). These investigations reveal that disubstituted donors in the organic sensitizers of three or more conjugation units deteriorate the PV performance due to enhanced recombination. © 2010 John Wiley & Sons, Ltd. |
Keyword | Dye Sensitized Solar Cells Electrochemical Impedance Spectroscopy Phenothiazine Derivative Organic Dyes |
DOI | 10.1002/pip.980 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Energy & Fuels ; Materials Science ; Physics |
WOS Subject | Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied |
WOS ID | WOS:000285659300002 |
Scopus ID | 2-s2.0-78649546577 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | Faculty of Health Sciences |
Affiliation | 1.National University of Singapore 2.A-Star, Institute of Materials Research and Engineering |
Recommended Citation GB/T 7714 | Xie Z.,Midya A.,Loh K.P.,et al. Highly efficient dye-sensitized solar cells using phenothiazine derivative organic dyes[J]. Progress in Photovoltaics: Research and Applications, 2010, 18(8), 573-581. |
APA | Xie Z.., Midya A.., Loh K.P.., Adams S.., Blackwood D.J.., Wang J.., Zhang X.., & Chen Z. (2010). Highly efficient dye-sensitized solar cells using phenothiazine derivative organic dyes. Progress in Photovoltaics: Research and Applications, 18(8), 573-581. |
MLA | Xie Z.,et al."Highly efficient dye-sensitized solar cells using phenothiazine derivative organic dyes".Progress in Photovoltaics: Research and Applications 18.8(2010):573-581. |
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