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Updated: Mar 10, 2026
Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
Developing high-performance small molecule organic solar cells via a large planar structure and an
Hongtao Zhang1, Yongtao Liu2, Yanna Sun1
1The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China. yschen99@nankai.edu.cn and School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300071, China.
Researchers developed a novel organic solar cell material, DR3TBDD, utilizing a BDD core. This new material achieved a power conversion efficiency of 9.53% with a high open-circuit voltage exceeding 1V.
Area of Science:
- Materials Science
- Organic Electronics
- Photovoltaics
Background:
- Organic solar cells (OSCs) offer potential for low-cost, flexible energy generation.
- Developing efficient and stable small molecule donor materials is crucial for advancing OSC performance.
- Electron-deficient building blocks can influence molecular packing and electronic properties.
Purpose of the Study:
- To design and synthesize a novel small molecule donor material for organic solar cells.
- To investigate the structure-property relationships of materials incorporating the BDD unit.
- To evaluate the photovoltaic performance of the new material in OSC devices.
Main Methods:
- Synthesis of the small molecule donor material DR3TBDD.
- Characterization of the material's optical and electrochemical properties.
- Fabrication and testing of organic solar cell devices using DR3TBDD.
Main Results:
- Successful synthesis and characterization of DR3TBDD.
- Achieved a power conversion efficiency (PCE) of 9.53%.
- Obtained a high open-circuit voltage (Voc) of approximately 1 V.
Conclusions:
- DR3TBDD is a promising small molecule donor material for organic solar cells.
- The use of the BDD electron-withdrawing unit is effective in enhancing Voc and PCE.
- Further optimization could lead to even higher performance in organic photovoltaic devices.
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