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Dye-sensitized solar cells based on bisindolylmaleimide derivatives
KTH, School of Biotechnology (BIO), Theoretical Chemistry (closed 20110512). East China University of Science and Technology, China.
2009 (English)In: Frontiers of Chemistry in China, ISSN 1673-3495, Vol. 4, no 3, 269-277 p.Article in journal (Refereed) Published
Abstract [en]

Three organic dyes based on bisindolylmaleimide derivatives (I1, I2 and I3) were synthesized and investigated as sensitizers for the application in nanocrystalline TiO2 solar cells. The indole group, maleimide group and carboxylic group functioned as electron donor, acceptor and anchoring group, respectively. Solar-to-electrical energy conversion efficiencies under simulated amplitude-modulated 1.5 irradiation (100 mW·cm-2) of 2.07% were obtained for solar cells based on I2 and of 1.87% and 1.50% for I3 and I1, respectively. The open circuit voltage Voc was demonstrated to be enhanced by the introduction of dodecyl or benzyl moieties on the indole groups. The nonplanar structure of bisindolylmaleimide was proven to be effective in aggregation resistance. This work suggests that organic sensitizers with maleimide as electron acceptor are promising candidates as organic sensitizers in dye-sensitized solar cells.

Place, publisher, year, edition, pages
2009. Vol. 4, no 3, 269-277 p.
Keyword [en]
Dye-sensitized solar cell, Maleimide, Nonplanar, Organic sensitizer
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-153589DOI: 10.1007/s11458-009-0087-7Scopus ID: 2-s2.0-70349599009OAI: oai:DiVA.org:kth-153589DiVA: diva2:753162
Note

QC 20141007

Available from: 2014-10-07 Created: 2014-10-06 Last updated: 2014-10-07Bibliographically approved

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