| SnS-Quantum Dot Solar Cells Using Novel TiC Counter Electrode and Organic Redox Couples. | |
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MedLine Citation:
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PMID: 22565379 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Low-cost quantum-dot sensitized solar cells (QDSSCs) were fabricated by using the earth-abundant element SnS quantum dot, novel TiC counter electrodes, and the organic disulfide/thiolate (T(2) /T(-) ) redox couple, and reached an efficiency of 1.03 %. QDSSCs based on I(-) /I(3) (-) , T(2) /T(-) , and S(2-) /S(x) (2-) redox couples were assembled to study the role of the redox couples in the regeneration of sensitizers. Charge-extraction results reveal the reasons for the difference in J(SC) in three QDSSCs based on I(-) /I(3) (-) , T(2) /T(-) , and S(2-) /S(x) (2-) redox couples. The catalytic selectivity of TiC and Pt towards T(2) /T(-) and I(-) /I(3) (-) redox couples was investigated using Tafel polarization and electrochemical impedance analysis. These results indicated that Pt and TiC show a similar catalytic selectivity for I(-) /I(3) (-) . However, TiC possesses better catalytic activity for T(2) /T(-) than for I(-) /I(3) (-) . These results indicate the great potential of transition metal carbide materials and organic redox couples used in QDSSCs. |
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Authors:
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Wei Guo; Yihua Shen; Mingxing Wu; Liang Wang; Linlin Wang; Tingli Ma |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-8 |
Journal Detail:
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Title: Chemistry (Weinheim an der Bergstrasse, Germany) Volume: - ISSN: 1521-3765 ISO Abbreviation: - Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-5-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9513783 Medline TA: Chemistry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, 116024 (P.R. China), Fax: (+86) 411-84986230. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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