Jump to main content
Jump to site search

Issue 29, 2017
Previous Article Next Article

A new n-type semiconducting molecule with an asymmetric indenothiophene core for a high-performing non-fullerene type organic solar cell

Author affiliations

Abstract

Herein, a new asymmetric n-type semiconducting molecule (PhITBD) with an indenothiophene core was designed, synthesized using tethering 2-(benzo[c][1,2,5]-thiadiazol-4-ylmethylene)-malononitrile (BM) as terminal groups, and applied to polymer solar cells (PSCs). The PSCs with asymmetric PhITBD displayed improved power conversion efficiencies (PCE) of 6.57% as compared to those with the symmetric molecule IDT-2BM. The higher PCE value of the PhITBD-based PSC was mainly attributed to the enhanced photovoltaic properties, the Voc, Jsc, FF induced by complementary light absorption (550–600 nm range), morphological improvement, and balanced charge carrier transport in the active layer. Due to the effective morphological control and absorption enhancement, asymmetric structured n-type-conjugated molecules are potential candidates for improving the performance of bulk heterojunction non-fullerene type PSCs.

Graphical abstract: A new n-type semiconducting molecule with an asymmetric indenothiophene core for a high-performing non-fullerene type organic solar cell

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Feb 2017, accepted on 29 May 2017 and first published on 30 May 2017


Article type: Paper
DOI: 10.1039/C7TC00706J
Citation: J. Mater. Chem. C, 2017,5, 7182-7190
  •   Request permissions

    A new n-type semiconducting molecule with an asymmetric indenothiophene core for a high-performing non-fullerene type organic solar cell

    Y. Un Kim, G. Eun Park, S. Choi, D. Hee Lee, M. Ju Cho and D. H. Choi, J. Mater. Chem. C, 2017, 5, 7182
    DOI: 10.1039/C7TC00706J

Search articles by author

Spotlight

Advertisements