Cover Picture: A Three‐dimensional Non‐fullerene Small Molecule Acceptor for Solution‐processed Organic Solar Cells (Chin. J. Chem. 11/2017)

The cover picture shows a new three‐dimensional non‐fullerene small molecular acceptor for solution‐processed organic solar cells. The acceptor was named SFTTIC using spiro‐bifluorene as the core unit linking with four thieno[3,2‐ b ]thiophenes and end‐capped with 2‐(3‐oxo‐2,3‐dihydro‐1 H ‐inden‐1‐y...

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Bibliographic Details
Published in:Chinese journal of chemistry 2017-11, Vol.35 (11), p.1651-1651
Main Authors: Chang, Meijia, Wang, Yunchuang, Qiu, Nailiang, Yi, Yuan‐Qiu‐Qiang, Wan, Xiangjian, Li, Chenxi, Chen, Yongshen
Format: Article
Language:English
Subjects:
Absorptivity
Donor materials
Energy conversion efficiency
Energy levels
Fullerenes
Malononitrile
Photovoltaic cells
Photovoltaics
Solar cells
Thermal stability
Thiophenes
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Summary:The cover picture shows a new three‐dimensional non‐fullerene small molecular acceptor for solution‐processed organic solar cells. The acceptor was named SFTTIC using spiro‐bifluorene as the core unit linking with four thieno[3,2‐ b ]thiophenes and end‐capped with 2‐(3‐oxo‐2,3‐dihydro‐1 H ‐inden‐1‐ylidene)malononitrile. SFTTIC has a high absorption coefficient, good thermal stability and appropriate energy levels and the optimized power conversion efficiency (PCE) of 5.66% was achieved for the devices with PBDB‐T as donor material. These results indicate that the 3D non‐fullerene small molecule is potential for achieving high photovoltaic performance. More details are discussed in the article by Chen et al. on page 1687–1692. image
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201770111