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Title: Toward rational design of metal-free organic dyes based on indolo[3,2-b]indole structure for dye-sensitized solar cells
Authors: Nopporn Ruangsupapichat
Metawee Ruamyart
Patcharaphon Kanchanarugee
Chirapa Boonthum
Narid Prachumrak
Taweesak Sudyoadsuk
Vinich Promarak
Vidyasirimedhi Institute of Science and Technology
Mahidol University
Keywords: Chemical Engineering
Issue Date: 1-Apr-2018
Citation: Dyes and Pigments. Vol.151, (2018), 149-156
Abstract: © 2018 Elsevier Ltd Three organic dyes containing a nitrogen-bridged phenylenevinylene (NPV: indolo[3,2-b]indole) unit were synthesized and applied in dye-sensitized solar cells, where NPV was employed as a donor itself or as a π-spacer with the extra-donor diphenylamine. The photophysical, electrochemical and photovoltaic properties of the dyes were investigated. All dyes displayed broad absorption spectra and high molar extinction coefficient, resulting in high light harvesting efficiency. The results showed that the dye with two cyanoacrylic acid as the acceptors exhibited photovoltaic performance of 7.39% under standard global AM 1.5 solar condition, better than the other two with only one acceptor. These results indicate that the NPV-based organic dye is a promising candidate for efficient DSSCs.
ISSN: 18733743
Appears in Collections:Scopus 2018

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