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Updated: Feb 15, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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High-Performance Organic Bulk-Heterojunction Solar Cells Based on Multiple-Donor or Multiple-Acceptor Components.

Wenchao Huang1,2, Pei Cheng1,2, Yang Michael Yang3

  • 1Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA.

Advanced Materials (Deerfield Beach, Fla.)
|January 16, 2018
PubMed
Summary

Organic solar cells (OSCs) offer a promising renewable energy solution. Utilizing multiple light-absorbing materials in bulk heterojunctions boosts their performance by broadening spectral absorption and improving charge transfer.

Keywords:
morphologymultiple acceptorsmultiple donorsorganic solar cellsternary

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Organic Electronics

Background:

  • Organic solar cells (OSCs) are promising for next-generation photovoltaics.
  • Narrow absorption bandwidth of organic semiconductors limits solar energy utilization and device performance.
  • Bulk heterojunction (BHJ) structures are commonly employed in OSCs.

Purpose of the Study:

  • To review recent advancements in OSCs utilizing multiple donor or acceptor components.
  • To highlight strategies for overcoming the limited spectral absorption of single-component organic semiconductors.
  • To discuss the impact of multi-component systems on charge transfer and recombination.

Main Methods:

  • Review of literature on multi-donor and multi-acceptor organic solar cells.
  • Analysis of device architectures incorporating complementary absorption spectra.
  • Examination of energy cascade structures and morphological optimization in BHJ devices.

Main Results:

  • Multi-donor or multi-acceptor OSCs achieve power conversion efficiencies exceeding 12%.
  • Complementary absorption spectra enhance solar spectrum utilization.
  • Additional components facilitate charge transfer and reduce recombination via cascade energy levels and optimized morphology.

Conclusions:

  • Multi-component strategies significantly improve OSC performance by addressing spectral limitations.
  • The integration of multiple donors or acceptors offers a viable pathway for high-efficiency organic photovoltaics.
  • Future research should focus on synergistic effects in multi-component systems for further performance gains.