Novel unsymmetrical squaraine-based small molecules for organic solar cells

Yao Chen, Gang Wang, Lin Yang, Jianglin Wu, Ferdinand S. Melkonyan, Yan Huang, Zhiyun Lu, Tobin J Marks, Antonio Facchetti

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new unsymmetrical squaraine dye (USQ) series for organic solar cells (OSC) is synthesized by a simple route without using highly toxic reagents. These USQs exhibit a low bandgap of 1.57 eV and HOMO energies of ∼-5.2-5.3 eV. Despite the very simple molecular structures, OSC devices based on these USQs exhibit an impressive open-circuit voltage of 0.92 V and power conversion efficiencies (PCEs) approaching 5%, achieved without using any additives or post film deposition treatment. The results indicate that USQs are promising materials for sustainable energy applications.

Original languageEnglish
Pages (from-to)847-854
Number of pages8
JournalJournal of Materials Chemistry C
Volume6
Issue number4
DOIs
Publication statusPublished - Jan 1 2018

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Molecules
Poisons
Open circuit voltage
Molecular structure
Conversion efficiency
Energy gap
Coloring Agents
Dyes
squaraine
Organic solar cells

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

Chen, Y., Wang, G., Yang, L., Wu, J., Melkonyan, F. S., Huang, Y., ... Facchetti, A. (2018). Novel unsymmetrical squaraine-based small molecules for organic solar cells. Journal of Materials Chemistry C, 6(4), 847-854. https://doi.org/10.1039/c7tc04639a

Novel unsymmetrical squaraine-based small molecules for organic solar cells. / Chen, Yao; Wang, Gang; Yang, Lin; Wu, Jianglin; Melkonyan, Ferdinand S.; Huang, Yan; Lu, Zhiyun; Marks, Tobin J; Facchetti, Antonio.

In: Journal of Materials Chemistry C, Vol. 6, No. 4, 01.01.2018, p. 847-854.

Research output: Contribution to journalArticle

Chen, Y, Wang, G, Yang, L, Wu, J, Melkonyan, FS, Huang, Y, Lu, Z, Marks, TJ & Facchetti, A 2018, 'Novel unsymmetrical squaraine-based small molecules for organic solar cells', Journal of Materials Chemistry C, vol. 6, no. 4, pp. 847-854. https://doi.org/10.1039/c7tc04639a
Chen, Yao ; Wang, Gang ; Yang, Lin ; Wu, Jianglin ; Melkonyan, Ferdinand S. ; Huang, Yan ; Lu, Zhiyun ; Marks, Tobin J ; Facchetti, Antonio. / Novel unsymmetrical squaraine-based small molecules for organic solar cells. In: Journal of Materials Chemistry C. 2018 ; Vol. 6, No. 4. pp. 847-854.
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