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Related Experiment Video

Updated: May 21, 2026

Morphology Control for Fully Printable Organic&#8211;Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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Non-basic high-performance molecules for solution-processed organic solar cells.

Thomas S van der Poll1, John A Love, Thuc-Quyen Nguyen

  • 1Center for Polymers and Organic Solids, University of California, Santa Barbara, CA 93106, USA.

Advanced Materials (Deerfield Beach, Fla.)
|June 8, 2012
PubMed
Summary
This summary is machine-generated.

A novel small molecule, p-DTS(FBTTh(2))(2), enhances organic solar cell efficiency. Its electron-poor heterocycles allow for common interlayers, achieving power conversion efficiencies up to 7%.

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Photovoltaics

Background:

  • Organic solar cells (OSCs) offer potential for low-cost, flexible energy generation.
  • Developing stable and efficient organic semiconductor materials is crucial for OSC commercialization.
  • Protonation of electron-rich heterocycles can limit device performance and stability.

Purpose of the Study:

  • To design and synthesize a new small molecule, p-DTS(FBTTh(2))(2), for high-efficiency organic solar cells.
  • To improve the stability and compatibility of organic semiconductors with common interlayers.
  • To achieve high power conversion efficiencies in solution-processed organic solar cells.

Main Methods:

  • Synthesis of the novel small molecule p-DTS(FBTTh(2))(2).
  • Fabrication of organic solar cells using p-DTS(FBTTh(2))(2) as the donor material and PC71BM as the acceptor.
  • Characterization of the photovoltaic properties and device performance.

Main Results:

  • The synthesized small molecule, p-DTS(FBTTh(2))(2), contains electron-poor heterocycles resistant to protonation.
  • This molecular design enables the use of standard interlayers between the organic semiconductor and electrodes.
  • Organic solar cells fabricated with p-DTS(FBTTh(2))(2)/PC71BM achieved power conversion efficiencies of up to 7%.

Conclusions:

  • p-DTS(FBTTh(2))(2) is a promising material for solution-processed organic solar cells.
  • The material's stability and compatibility enhance device architecture possibilities.
  • Achieved efficiencies demonstrate the potential of this new molecular design for efficient organic photovoltaics.