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Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
High-performance inverted polymer solar cells with solution-processed titanium chelate as electron-collecting layer
Zhan'ao Tan1, Wenqing Zhang, Zhiguo Zhang
1Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China. tanzhanao@ncepu.edu.cn
Advanced Materials (Deerfield Beach, Fla.)
|March 13, 2012
Summary
Solution-processed titanium chelate TIPD enhances inverted polymer solar cells (PSCs). This novel electron collecting layer achieved a record 7.4% power conversion efficiency, a 16% improvement over conventional devices.
Area of Science:
- Materials Science
- Renewable Energy
- Organic Electronics
Background:
- Polymer solar cells (PSCs) are a promising renewable energy technology.
- Electron collecting layers are crucial for PSC performance.
- Existing electron collecting layers in inverted PSCs have limitations.
Purpose of the Study:
- To develop a high-performance electron collecting layer for inverted PSCs.
- To investigate the use of solution-processed titanium chelate TIPD.
- To optimize the performance of inverted PSCs using TIPD.
Main Methods:
- Fabrication of inverted polymer solar cells (PSCs) with a titanium chelate TIPD electron collecting layer.
- Solution processing of TIPD.
- Thermal annealing of the TIPD buffer layer at 150 °C for 10 minutes.
- Performance characterization under AM1.5, 100 mW/cm(2) illumination.
Main Results:
- Achieved a power conversion efficiency (PCE) of 7.4% for inverted PSCs with TIPD.
- Demonstrated a 16% increase in PCE compared to conventional PSCs (6.4%).
- The 7.4% PCE represents a new record for inverted PSCs in the literature.
Conclusions:
- Solution-processed TIPD is an effective electron collecting layer for high-performance inverted PSCs.
- The TIPD buffer layer significantly enhances PSC efficiency.
- This advancement contributes to the development of more efficient organic solar cell technologies.
