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Updated: Apr 23, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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Full-solution processed flexible organic solar cells using low-cost printable copper electrodes.

Kan Li1, Hongyu Zhen, Liyong Niu

  • 1State key laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310027, China; Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong SAR, China.

Advanced Materials (Deerfield Beach, Fla.)
|September 16, 2014
PubMed
Summary

Researchers developed flexible organic solar cells (OSCs) using printable copper electrodes. These low-cost OSCs achieve high efficiency and stability, showing promise for large-scale manufacturing.

Keywords:
electrodesflexibleorganic solar cellsprinted electronicssolution processed

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Organic Electronics

Background:

  • Flexible organic solar cells (OSCs) offer potential for lightweight and adaptable energy generation.
  • Current fabrication methods for OSCs often involve expensive or complex electrode materials.
  • Improving the efficiency and stability of solution-processed OSCs is crucial for commercial viability.

Purpose of the Study:

  • To fabricate high-performance, flexible organic solar cells using novel, printable copper electrodes.
  • To evaluate the power conversion efficiency and long-term stability of these OSCs.
  • To assess the suitability of printed copper electrodes for scalable, roll-to-roll manufacturing.

Main Methods:

  • Fabrication of flexible organic solar cells utilizing printable copper (Cu) electrodes processed from a full solution.
  • Characterization of the power conversion efficiency (PCE) of the fabricated OSCs.
  • Assessment of device stability through 1000 bending cycles.

Main Results:

  • Achieved a power conversion efficiency of 2.77% in the flexible OSCs.
  • Demonstrated remarkable stability, withstanding 1000 bending cycles without significant performance degradation.
  • The performance is considered the best reported for full-solution-processed OSCs using the same active materials.

Conclusions:

  • Printable copper electrodes are a viable, low-cost alternative for fabricating high-performance flexible OSCs.
  • The developed OSCs exhibit excellent efficiency and durability, suitable for flexible electronics.
  • This approach shows significant potential for enabling roll-to-roll production of flexible organic solar cells.