期刊
JOURNAL OF POWER SOURCES
卷 168, 期 2, 页码 533-536出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2006.12.114
关键词
dye-sensitized solar cell; electrochromic device; photovoltaic; optical density difference; response time
资金
- National Research Foundation of Korea [R01-2004-000-10143-0, 과C6A1903] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Tandem dye-sensitized solar cell (DSSC)-electrochromic (EC) devices were realized using two-faced transparent conducting oxide (TCO). To supply sufficient voltage to drive the EC devices, two series connected, semitransparent DSSCs were fabricated with 7 nm-thick, dye-adsorbed TiO2 and 4 nm-thick Pt layers. The two series connected, semitransparent DSSCs that were used had an open circuit voltage and short circuit current density of about 1.35 V and 3.96 mA cm(-2), respectively, at 1-sun. The tandem DSSC-EC devices showed an optical density difference of 1.2 at 750 nm and reasonable response times of about 60 and 45 s during the coloring and bleaching processes, respectively, indicating that the two series-connected, semitransparent DSSCs could be used as the power sources in the tandem photovoltaic-powered EC devices. (C) 2007 Elsevier B.V. All rights reserved.
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