Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 Nov;28(42):9423-9429.
doi: 10.1002/adma.201602776. Epub 2016 Sep 8.

Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells

Sunsun Li  1   2 , Long Ye  3 , Wenchao Zhao  1   2 , Shaoqing Zhang  1 , Subhrangsu Mukherjee  3 , Harald Ade  3 , Jianhui Hou  1   2
Affiliations

Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells

Sunsun Li et al. Adv Mater. 2016 Nov.

Abstract

Fine energy-level modulations of small-molecule acceptors (SMAs) are realized via subtle chemical modifications on strong electron-withdrawing end-groups. The two new SMAs (IT-M and IT-DM) end-capped by methyl-modified dicycanovinylindan-1-one exhibit upshifted lowest unoccupied molecular orbital (LUMO) levels, and hence higher open-circuit voltages can be observed in the corresponding devices. Finally, a top power conversion efficiency of 12.05% is achieved.

Keywords: end-groups; energy-level modulation; nonfullerene acceptors; polymer solar cells; soft X-ray scattering.

PubMed Disclaimer

LinkOut - more resources