Thieno[2,3-a]carbazole-based donor-π-acceptor organic dyes for efficient dye-sensitized solar cells

Jian Zhao, Tienan Jin, Ashraful Islam, Eunsang Kwon, Md. Akhtaruzzaman, Naoki Asao, Liyuan Han, Khalid A. Alamry, Samia A. Kosa, Abdullah Mohamed Asiri, Yoshinori Yamamoto

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

New donor-π-acceptor organic dyes K-1 and K-2 containing thieno[2,3-a]carbazole as an electron donor were designed and synthesized for dye-sensitized solar cells (DSCs). Photophysical and electrochemical properties of K-dyes were investigated. DSCs based on K-dyes showed a high conversion efficiency of 6.6-6.7% with a Jscof 12.40-12.49 mA cm-2and a Vocof 0.70-0.71 V. The molecular geometry calculation indicated that the existence of thienocarbazole donor in K-dyes enhanced the molecular planarity compared to the carbazole analogue dye MK-3. As a result, DSCs based on K-dyes showed high IPCEs, perhaps due to efficient intramolecular charge transfer and electron injection from excited dye to TiO2conduction band.

Original languageEnglish
Pages (from-to)6211-6216
Number of pages6
JournalTetrahedron
Issue number36
DOIs
Publication statusPublished - 2014

Fingerprint

Coloring Agents
Electron injection
carbazole
Dye-sensitized solar cells
Electrochemical properties
Electrons
Conversion efficiency
Charge transfer
Geometry
Injections

Keywords

  • Charge transfer
  • Donor-π-acceptor dye
  • Dye-sensitized solar cell
  • Molecular planarity
  • Thieno[2 3-A]carbazole

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Drug Discovery

Cite this

Thieno[2,3-a]carbazole-based donor-π-acceptor organic dyes for efficient dye-sensitized solar cells. / Zhao, Jian; Jin, Tienan; Islam, Ashraful; Kwon, Eunsang; Akhtaruzzaman, Md.; Asao, Naoki; Han, Liyuan; Alamry, Khalid A.; Kosa, Samia A.; Asiri, Abdullah Mohamed; Yamamoto, Yoshinori.

In: Tetrahedron, No. 36, 2014, p. 6211-6216.

Research output: Contribution to journalArticle

Zhao, J, Jin, T, Islam, A, Kwon, E, Akhtaruzzaman, M, Asao, N, Han, L, Alamry, KA, Kosa, SA, Asiri, AM & Yamamoto, Y 2014, 'Thieno[2,3-a]carbazole-based donor-π-acceptor organic dyes for efficient dye-sensitized solar cells', Tetrahedron, no. 36, pp. 6211-6216. https://doi.org/10.1016/j.tet.2014.01.001
Zhao, Jian ; Jin, Tienan ; Islam, Ashraful ; Kwon, Eunsang ; Akhtaruzzaman, Md. ; Asao, Naoki ; Han, Liyuan ; Alamry, Khalid A. ; Kosa, Samia A. ; Asiri, Abdullah Mohamed ; Yamamoto, Yoshinori. / Thieno[2,3-a]carbazole-based donor-π-acceptor organic dyes for efficient dye-sensitized solar cells. In: Tetrahedron. 2014 ; No. 36. pp. 6211-6216.
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