Near-Infrared Harvesting Fullerene-Free All-Small-Molecule Organic Solar Cells Based on Porphyrin Donors

Wisnu Tantyo Hadmojo, Dajeong Yim, Septy Sinaga, Wooseop Lee, Du Yeol Ryu, Woo Dong Jang*, In Hwan Jung, Sung Yeon Jang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Fullerene-free all-small-molecule organic photovoltaic cells (SM-OPVs) have attracted considerable attention because of well-defined molecular structures with low batch-to-batch variation. Porphyrin derivatives have recently emerged as one of the promising conjugated building blocks for the small-molecule (SM) donors. Herein, we first report fullerene-free SM-OPVs employing porphyrin-based donors. Three zinc porphyrin (PZn)-based SM donors, which have strong bimodal absorption in the visible region and near-infrared region, are synthesized. Constructing bulk-heterojunction (BHJ) active layers using the PZn donors and a SM acceptor, IDIC, which have complementary absorption, achieved panchromatic photon-to-current-conversion from 400 to 900 nm. The manipulation of side chains in the PZn donors considerably influenced the molecular ordering and nanomorphology of the BHJ active layers. PZn-based fullerene-free SM-OPV devices with promising power conversion efficiency of 6.13% were achieved, which also offers crucial guidance for developing fullerene-free OPVs using porphyrin derivatives.

Original languageEnglish (US)
Pages (from-to)5306-5313
Number of pages8
JournalACS Sustainable Chemistry and Engineering
Issue number4
StatePublished - Apr 2 2018


  • All-small-molecule solar cell
  • Fullerene free
  • Organic solar cell
  • Panchromatic absoprtion
  • Porphyrin donor

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment


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